/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.lifts.2.prop1-func-interl.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 19:29:18,032 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 19:29:18,072 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 19:29:18,075 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 19:29:18,076 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 19:29:18,090 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 19:29:18,091 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 19:29:18,091 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 19:29:18,091 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 19:29:18,092 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 19:29:18,092 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 19:29:18,092 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 19:29:18,092 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 19:29:18,093 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 19:29:18,093 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 19:29:18,093 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 19:29:18,093 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 19:29:18,094 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 19:29:18,094 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 19:29:18,094 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 19:29:18,094 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 19:29:18,094 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 19:29:18,095 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 19:29:18,095 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 19:29:18,095 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 19:29:18,095 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 19:29:18,095 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 19:29:18,096 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 19:29:18,096 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 19:29:18,096 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 19:29:18,096 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 19:29:18,096 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 19:29:18,096 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 19:29:18,097 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 19:29:18,097 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 19:29:18,097 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 19:29:18,097 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 19:29:18,097 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 19:29:18,097 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 19:29:18,097 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 19:29:18,098 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 19:29:18,301 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 19:29:18,326 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 19:29:18,328 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 19:29:18,329 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 19:29:18,329 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 19:29:18,330 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.lifts.2.prop1-func-interl.c
[2023-12-25 19:29:19,408 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 19:29:19,758 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 19:29:19,759 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.lifts.2.prop1-func-interl.c
[2023-12-25 19:29:19,788 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b95ed4fb/93b5b0bf9f5549118cb5fdc7768e720b/FLAG89ce12002
[2023-12-25 19:29:19,975 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b95ed4fb/93b5b0bf9f5549118cb5fdc7768e720b
[2023-12-25 19:29:19,977 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 19:29:19,979 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 19:29:19,981 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 19:29:19,981 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 19:29:19,984 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 19:29:19,984 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:29:19" (1/1) ...
[2023-12-25 19:29:19,985 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4109d7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:19, skipping insertion in model container
[2023-12-25 19:29:19,985 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:29:19" (1/1) ...
[2023-12-25 19:29:20,077 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 19:29:20,240 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.lifts.2.prop1-func-interl.c[1172,1185]
[2023-12-25 19:29:20,840 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 19:29:20,848 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 19:29:20,856 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.lifts.2.prop1-func-interl.c[1172,1185]
[2023-12-25 19:29:21,431 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 19:29:21,441 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 19:29:21,443 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21 WrapperNode
[2023-12-25 19:29:21,443 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 19:29:21,444 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 19:29:21,444 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 19:29:21,444 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 19:29:21,448 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:21,660 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:23,874 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31366
[2023-12-25 19:29:23,874 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 19:29:23,876 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 19:29:23,876 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 19:29:23,876 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 19:29:23,891 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:23,892 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:24,516 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:24,979 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 19:29:24,980 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:24,980 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:25,723 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:25,923 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:26,047 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:26,139 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:26,611 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 19:29:26,621 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 19:29:26,622 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 19:29:26,622 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 19:29:26,623 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (1/1) ...
[2023-12-25 19:29:26,627 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 19:29:26,651 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:29:26,679 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 19:29:26,694 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 19:29:26,728 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 19:29:26,728 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 19:29:26,728 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 19:29:26,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 19:29:27,860 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 19:29:27,862 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 19:29:38,927 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 19:29:39,526 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 19:29:39,527 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 19:29:39,527 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:29:39 BoogieIcfgContainer
[2023-12-25 19:29:39,528 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 19:29:39,531 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 19:29:39,531 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 19:29:39,533 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 19:29:39,533 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 07:29:19" (1/3) ...
[2023-12-25 19:29:39,542 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c29c4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:29:39, skipping insertion in model container
[2023-12-25 19:29:39,543 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:29:21" (2/3) ...
[2023-12-25 19:29:39,543 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c29c4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:29:39, skipping insertion in model container
[2023-12-25 19:29:39,544 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:29:39" (3/3) ...
[2023-12-25 19:29:39,545 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lifts.2.prop1-func-interl.c
[2023-12-25 19:29:39,557 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 19:29:39,557 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 19:29:39,785 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 19:29:39,798 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;@741b0acb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 19:29:39,799 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 19:29:39,834 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7181 states, 7179 states have (on average 1.667502437665413) internal successors, (11971), 7180 states have internal predecessors, (11971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:39,875 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 333
[2023-12-25 19:29:39,875 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:29:39,876 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]
[2023-12-25 19:29:39,876 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:29:39,879 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:29:39,880 INFO  L85        PathProgramCache]: Analyzing trace with hash -1071588849, now seen corresponding path program 1 times
[2023-12-25 19:29:39,886 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:29:39,887 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543042203]
[2023-12-25 19:29:39,887 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:29:39,888 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:29:40,249 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:29:41,251 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 19:29:41,251 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:29:41,251 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543042203]
[2023-12-25 19:29:41,252 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543042203] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:29:41,252 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:29:41,252 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:29:41,253 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581236970]
[2023-12-25 19:29:41,254 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:29:41,259 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:29:41,259 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:29:41,284 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:29:41,284 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:29:41,298 INFO  L87              Difference]: Start difference. First operand  has 7181 states, 7179 states have (on average 1.667502437665413) internal successors, (11971), 7180 states have internal predecessors, (11971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:41,616 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:29:41,616 INFO  L93              Difference]: Finished difference Result 14163 states and 23613 transitions.
[2023-12-25 19:29:41,617 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:29:41,618 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 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 332
[2023-12-25 19:29:41,619 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:29:41,646 INFO  L225             Difference]: With dead ends: 14163
[2023-12-25 19:29:41,646 INFO  L226             Difference]: Without dead ends: 7181
[2023-12-25 19:29:41,659 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 19:29:41,661 INFO  L413           NwaCegarLoop]: 11964 mSDtfsCounter, 1 mSDsluCounter, 23923 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35887 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-25 19:29:41,662 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35887 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-25 19:29:41,682 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7181 states.
[2023-12-25 19:29:41,787 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7181 to 7181.
[2023-12-25 19:29:41,799 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7181 states, 7180 states have (on average 1.666991643454039) internal successors, (11969), 7180 states have internal predecessors, (11969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:41,816 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7181 states to 7181 states and 11969 transitions.
[2023-12-25 19:29:41,817 INFO  L78                 Accepts]: Start accepts. Automaton has 7181 states and 11969 transitions. Word has length 332
[2023-12-25 19:29:41,820 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:29:41,820 INFO  L495      AbstractCegarLoop]: Abstraction has 7181 states and 11969 transitions.
[2023-12-25 19:29:41,821 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:41,821 INFO  L276                IsEmpty]: Start isEmpty. Operand 7181 states and 11969 transitions.
[2023-12-25 19:29:41,824 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 334
[2023-12-25 19:29:41,824 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:29:41,825 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]
[2023-12-25 19:29:41,825 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 19:29:41,825 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:29:41,826 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:29:41,826 INFO  L85        PathProgramCache]: Analyzing trace with hash 1142210965, now seen corresponding path program 1 times
[2023-12-25 19:29:41,826 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:29:41,826 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418864674]
[2023-12-25 19:29:41,826 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:29:41,826 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:29:41,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:29:42,320 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 19:29:42,321 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:29:42,321 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418864674]
[2023-12-25 19:29:42,321 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418864674] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:29:42,322 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:29:42,322 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:29:42,322 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274628716]
[2023-12-25 19:29:42,322 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:29:42,325 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:29:42,328 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:29:42,329 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:29:42,329 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:29:42,329 INFO  L87              Difference]: Start difference. First operand 7181 states and 11969 transitions. Second operand  has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:42,510 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:29:42,511 INFO  L93              Difference]: Finished difference Result 14166 states and 23611 transitions.
[2023-12-25 19:29:42,512 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:29:42,512 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 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 333
[2023-12-25 19:29:42,513 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:29:42,531 INFO  L225             Difference]: With dead ends: 14166
[2023-12-25 19:29:42,531 INFO  L226             Difference]: Without dead ends: 7184
[2023-12-25 19:29:42,540 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 19:29:42,542 INFO  L413           NwaCegarLoop]: 11964 mSDtfsCounter, 1 mSDsluCounter, 23921 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35885 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 19:29:42,542 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35885 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 19:29:42,552 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7184 states.
[2023-12-25 19:29:42,769 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7184 to 7183.
[2023-12-25 19:29:42,788 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7183 states, 7182 states have (on average 1.666805903648009) internal successors, (11971), 7182 states have internal predecessors, (11971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:42,804 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7183 states to 7183 states and 11971 transitions.
[2023-12-25 19:29:42,804 INFO  L78                 Accepts]: Start accepts. Automaton has 7183 states and 11971 transitions. Word has length 333
[2023-12-25 19:29:42,805 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:29:42,805 INFO  L495      AbstractCegarLoop]: Abstraction has 7183 states and 11971 transitions.
[2023-12-25 19:29:42,806 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:42,806 INFO  L276                IsEmpty]: Start isEmpty. Operand 7183 states and 11971 transitions.
[2023-12-25 19:29:42,808 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 335
[2023-12-25 19:29:42,808 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:29:42,809 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]
[2023-12-25 19:29:42,809 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 19:29:42,809 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:29:42,815 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:29:42,815 INFO  L85        PathProgramCache]: Analyzing trace with hash 838371049, now seen corresponding path program 1 times
[2023-12-25 19:29:42,815 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:29:42,815 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563832571]
[2023-12-25 19:29:42,815 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:29:42,816 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:29:42,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:29:43,363 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 19:29:43,363 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:29:43,364 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563832571]
[2023-12-25 19:29:43,364 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563832571] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:29:43,364 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:29:43,364 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:29:43,364 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504932646]
[2023-12-25 19:29:43,364 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:29:43,365 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 19:29:43,365 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:29:43,366 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 19:29:43,367 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 19:29:43,368 INFO  L87              Difference]: Start difference. First operand 7183 states and 11971 transitions. Second operand  has 5 states, 5 states have (on average 66.8) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:43,706 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:29:43,706 INFO  L93              Difference]: Finished difference Result 21429 states and 35716 transitions.
[2023-12-25 19:29:43,706 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 19:29:43,707 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 66.8) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 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 334
[2023-12-25 19:29:43,707 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:29:43,751 INFO  L225             Difference]: With dead ends: 21429
[2023-12-25 19:29:43,752 INFO  L226             Difference]: Without dead ends: 14445
[2023-12-25 19:29:43,764 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-25 19:29:43,766 INFO  L413           NwaCegarLoop]: 12436 mSDtfsCounter, 47001 mSDsluCounter, 23919 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47001 SdHoareTripleChecker+Valid, 36355 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 19:29:43,767 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [47001 Valid, 36355 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 19:29:43,782 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14445 states.
[2023-12-25 19:29:43,885 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14445 to 7473.
[2023-12-25 19:29:43,897 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7473 states, 7472 states have (on average 1.6666220556745182) internal successors, (12453), 7472 states have internal predecessors, (12453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:43,910 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7473 states to 7473 states and 12453 transitions.
[2023-12-25 19:29:43,910 INFO  L78                 Accepts]: Start accepts. Automaton has 7473 states and 12453 transitions. Word has length 334
[2023-12-25 19:29:43,911 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:29:43,911 INFO  L495      AbstractCegarLoop]: Abstraction has 7473 states and 12453 transitions.
[2023-12-25 19:29:43,912 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 66.8) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:43,913 INFO  L276                IsEmpty]: Start isEmpty. Operand 7473 states and 12453 transitions.
[2023-12-25 19:29:44,136 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4958
[2023-12-25 19:29:44,136 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:29:44,138 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:44,139 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 19:29:44,139 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:29:44,139 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:29:44,140 INFO  L85        PathProgramCache]: Analyzing trace with hash 1741162038, now seen corresponding path program 1 times
[2023-12-25 19:29:44,140 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:29:44,140 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14323038]
[2023-12-25 19:29:44,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:29:44,141 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:29:44,558 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:29:44,559 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923704925]
[2023-12-25 19:29:44,560 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:29:44,560 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:29:44,560 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:29:44,563 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 19:29:44,624 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 19:29:49,738 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:29:49,896 INFO  L262         TraceCheckSpWp]: Trace formula consists of 21597 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:29:50,074 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:29:50,230 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:29:50,230 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:29:50,230 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:29:50,231 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14323038]
[2023-12-25 19:29:50,231 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:29:50,231 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923704925]
[2023-12-25 19:29:50,231 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923704925] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:29:50,231 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:29:50,231 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:29:50,232 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482433957]
[2023-12-25 19:29:50,232 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:29:50,235 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:29:50,236 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:29:50,239 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:29:50,239 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:29:50,240 INFO  L87              Difference]: Start difference. First operand 7473 states and 12453 transitions. Second operand  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:50,458 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:29:50,458 INFO  L93              Difference]: Finished difference Result 14467 states and 24109 transitions.
[2023-12-25 19:29:50,459 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:29:50,460 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 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 4957
[2023-12-25 19:29:50,461 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:29:50,471 INFO  L225             Difference]: With dead ends: 14467
[2023-12-25 19:29:50,472 INFO  L226             Difference]: Without dead ends: 7483
[2023-12-25 19:29:50,480 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4956 GetRequests, 4954 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 19:29:50,484 INFO  L413           NwaCegarLoop]: 11964 mSDtfsCounter, 12 mSDsluCounter, 23918 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35882 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 19:29:50,485 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35882 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 19:29:50,496 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7483 states.
[2023-12-25 19:29:50,585 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7483 to 7475.
[2023-12-25 19:29:50,593 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7475 states, 7474 states have (on average 1.6664436713941664) internal successors, (12455), 7474 states have internal predecessors, (12455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:50,604 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7475 states to 7475 states and 12455 transitions.
[2023-12-25 19:29:50,604 INFO  L78                 Accepts]: Start accepts. Automaton has 7475 states and 12455 transitions. Word has length 4957
[2023-12-25 19:29:50,605 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:29:50,605 INFO  L495      AbstractCegarLoop]: Abstraction has 7475 states and 12455 transitions.
[2023-12-25 19:29:50,608 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:50,608 INFO  L276                IsEmpty]: Start isEmpty. Operand 7475 states and 12455 transitions.
[2023-12-25 19:29:50,808 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4958
[2023-12-25 19:29:50,808 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:29:50,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:50,875 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 19:29:51,036 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:29:51,037 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:29:51,037 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:29:51,039 INFO  L85        PathProgramCache]: Analyzing trace with hash 223109380, now seen corresponding path program 1 times
[2023-12-25 19:29:51,039 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:29:51,039 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697738330]
[2023-12-25 19:29:51,039 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:29:51,039 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:29:51,452 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:29:51,452 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [541927317]
[2023-12-25 19:29:51,453 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:29:51,453 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:29:51,454 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:29:51,463 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 19:29:51,478 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 19:29:56,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:29:56,529 INFO  L262         TraceCheckSpWp]: Trace formula consists of 21598 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:29:56,607 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:29:56,713 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:29:56,714 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:29:56,714 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:29:56,714 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697738330]
[2023-12-25 19:29:56,714 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:29:56,714 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541927317]
[2023-12-25 19:29:56,714 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [541927317] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:29:56,714 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:29:56,715 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:29:56,715 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89350134]
[2023-12-25 19:29:56,715 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:29:56,720 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:29:56,720 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:29:56,724 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:29:56,724 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:29:56,725 INFO  L87              Difference]: Start difference. First operand 7475 states and 12455 transitions. Second operand  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:56,912 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:29:56,913 INFO  L93              Difference]: Finished difference Result 14470 states and 24111 transitions.
[2023-12-25 19:29:56,913 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:29:56,915 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 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 4957
[2023-12-25 19:29:56,916 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:29:56,926 INFO  L225             Difference]: With dead ends: 14470
[2023-12-25 19:29:56,926 INFO  L226             Difference]: Without dead ends: 7484
[2023-12-25 19:29:56,934 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4956 GetRequests, 4954 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 19:29:56,934 INFO  L413           NwaCegarLoop]: 11964 mSDtfsCounter, 12 mSDsluCounter, 23918 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35882 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 19:29:56,935 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35882 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 19:29:56,942 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7484 states.
[2023-12-25 19:29:57,016 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7484 to 7476.
[2023-12-25 19:29:57,024 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7476 states, 7475 states have (on average 1.6663545150501673) internal successors, (12456), 7475 states have internal predecessors, (12456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:57,035 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7476 states to 7476 states and 12456 transitions.
[2023-12-25 19:29:57,035 INFO  L78                 Accepts]: Start accepts. Automaton has 7476 states and 12456 transitions. Word has length 4957
[2023-12-25 19:29:57,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:29:57,037 INFO  L495      AbstractCegarLoop]: Abstraction has 7476 states and 12456 transitions.
[2023-12-25 19:29:57,038 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:29:57,038 INFO  L276                IsEmpty]: Start isEmpty. Operand 7476 states and 12456 transitions.
[2023-12-25 19:29:57,369 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4958
[2023-12-25 19:29:57,369 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:29:57,392 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:57,450 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-12-25 19:29:57,593 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:29:57,593 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:29:57,595 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:29:57,596 INFO  L85        PathProgramCache]: Analyzing trace with hash 1557659858, now seen corresponding path program 1 times
[2023-12-25 19:29:57,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:29:57,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304706306]
[2023-12-25 19:29:57,597 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:29:57,597 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:29:58,118 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:29:58,118 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474263937]
[2023-12-25 19:29:58,119 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:29:58,119 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:29:58,120 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:29:58,120 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 19:29:58,124 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 19:30:02,995 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:30:03,117 INFO  L262         TraceCheckSpWp]: Trace formula consists of 21599 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:30:03,213 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:30:03,278 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:30:03,278 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:30:03,278 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:30:03,278 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304706306]
[2023-12-25 19:30:03,278 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:30:03,278 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474263937]
[2023-12-25 19:30:03,278 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [474263937] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:30:03,278 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:30:03,279 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:30:03,279 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112830854]
[2023-12-25 19:30:03,279 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:30:03,283 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:30:03,283 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:30:03,285 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:30:03,285 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:30:03,286 INFO  L87              Difference]: Start difference. First operand 7476 states and 12456 transitions. Second operand  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:03,821 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:30:03,822 INFO  L93              Difference]: Finished difference Result 14472 states and 24113 transitions.
[2023-12-25 19:30:03,836 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:30:03,837 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 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 4957
[2023-12-25 19:30:03,838 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:30:03,847 INFO  L225             Difference]: With dead ends: 14472
[2023-12-25 19:30:03,848 INFO  L226             Difference]: Without dead ends: 7485
[2023-12-25 19:30:03,856 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4956 GetRequests, 4954 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 19:30:03,856 INFO  L413           NwaCegarLoop]: 11964 mSDtfsCounter, 12 mSDsluCounter, 23918 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35882 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-25 19:30:03,856 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35882 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-25 19:30:03,864 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7485 states.
[2023-12-25 19:30:03,928 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7485 to 7477.
[2023-12-25 19:30:03,936 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7477 states, 7476 states have (on average 1.6662653825575173) internal successors, (12457), 7476 states have internal predecessors, (12457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:03,944 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7477 states to 7477 states and 12457 transitions.
[2023-12-25 19:30:03,945 INFO  L78                 Accepts]: Start accepts. Automaton has 7477 states and 12457 transitions. Word has length 4957
[2023-12-25 19:30:03,945 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:30:03,945 INFO  L495      AbstractCegarLoop]: Abstraction has 7477 states and 12457 transitions.
[2023-12-25 19:30:03,947 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:03,947 INFO  L276                IsEmpty]: Start isEmpty. Operand 7477 states and 12457 transitions.
[2023-12-25 19:30:04,191 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4958
[2023-12-25 19:30:04,191 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:30:04,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:04,253 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2023-12-25 19:30:04,394 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:30:04,394 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:30:04,395 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:30:04,396 INFO  L85        PathProgramCache]: Analyzing trace with hash -613784160, now seen corresponding path program 1 times
[2023-12-25 19:30:04,396 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:30:04,397 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873308167]
[2023-12-25 19:30:04,397 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:04,397 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:30:04,715 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:30:04,715 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [69029114]
[2023-12-25 19:30:04,716 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:04,716 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:30:04,716 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:30:04,737 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 19:30:04,737 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 19:30:09,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:30:09,556 INFO  L262         TraceCheckSpWp]: Trace formula consists of 21600 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:30:09,614 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:30:09,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:30:09,685 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:30:09,686 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:30:09,686 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873308167]
[2023-12-25 19:30:09,686 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:30:09,686 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69029114]
[2023-12-25 19:30:09,686 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [69029114] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:30:09,686 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:30:09,686 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:30:09,686 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496320956]
[2023-12-25 19:30:09,686 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:30:09,690 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:30:09,690 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:30:09,692 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:30:09,693 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:30:09,693 INFO  L87              Difference]: Start difference. First operand 7477 states and 12457 transitions. Second operand  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:09,927 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:30:09,927 INFO  L93              Difference]: Finished difference Result 14474 states and 24115 transitions.
[2023-12-25 19:30:09,928 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:30:09,929 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 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 4957
[2023-12-25 19:30:09,929 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:30:09,953 INFO  L225             Difference]: With dead ends: 14474
[2023-12-25 19:30:09,953 INFO  L226             Difference]: Without dead ends: 7486
[2023-12-25 19:30:09,958 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4956 GetRequests, 4954 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 19:30:09,959 INFO  L413           NwaCegarLoop]: 11964 mSDtfsCounter, 12 mSDsluCounter, 23918 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35882 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 19:30:09,959 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35882 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 19:30:09,964 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7486 states.
[2023-12-25 19:30:10,022 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7486 to 7478.
[2023-12-25 19:30:10,031 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7478 states, 7477 states have (on average 1.666176273906647) internal successors, (12458), 7477 states have internal predecessors, (12458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:10,039 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7478 states to 7478 states and 12458 transitions.
[2023-12-25 19:30:10,039 INFO  L78                 Accepts]: Start accepts. Automaton has 7478 states and 12458 transitions. Word has length 4957
[2023-12-25 19:30:10,040 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:30:10,040 INFO  L495      AbstractCegarLoop]: Abstraction has 7478 states and 12458 transitions.
[2023-12-25 19:30:10,041 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:10,041 INFO  L276                IsEmpty]: Start isEmpty. Operand 7478 states and 12458 transitions.
[2023-12-25 19:30:10,164 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4958
[2023-12-25 19:30:10,164 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:30:10,166 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:10,226 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 19:30:10,387 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:30:10,387 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:30:10,388 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:30:10,389 INFO  L85        PathProgramCache]: Analyzing trace with hash -1690539154, now seen corresponding path program 1 times
[2023-12-25 19:30:10,389 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:30:10,389 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408952925]
[2023-12-25 19:30:10,390 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:10,390 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:30:10,687 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:30:10,687 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [85208668]
[2023-12-25 19:30:10,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:10,688 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:30:10,688 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:30:10,689 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 19:30:10,691 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 19:30:15,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:30:15,611 INFO  L262         TraceCheckSpWp]: Trace formula consists of 21601 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:30:15,674 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:30:15,739 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:30:15,740 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:30:15,740 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:30:15,740 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408952925]
[2023-12-25 19:30:15,740 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:30:15,740 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85208668]
[2023-12-25 19:30:15,741 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [85208668] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:30:15,741 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:30:15,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:30:15,742 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296400605]
[2023-12-25 19:30:15,742 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:30:15,746 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:30:15,746 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:30:15,748 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:30:15,748 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:30:15,749 INFO  L87              Difference]: Start difference. First operand 7478 states and 12458 transitions. Second operand  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:15,871 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:30:15,871 INFO  L93              Difference]: Finished difference Result 14476 states and 24117 transitions.
[2023-12-25 19:30:15,872 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:30:15,873 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 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 4957
[2023-12-25 19:30:15,873 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:30:15,884 INFO  L225             Difference]: With dead ends: 14476
[2023-12-25 19:30:15,885 INFO  L226             Difference]: Without dead ends: 7487
[2023-12-25 19:30:15,891 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4956 GetRequests, 4954 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 19:30:15,892 INFO  L413           NwaCegarLoop]: 11964 mSDtfsCounter, 12 mSDsluCounter, 23918 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35882 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 19:30:15,893 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35882 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 19:30:15,899 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7487 states.
[2023-12-25 19:30:15,956 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7487 to 7479.
[2023-12-25 19:30:15,964 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7479 states, 7478 states have (on average 1.6660871890879914) internal successors, (12459), 7478 states have internal predecessors, (12459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:15,972 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7479 states to 7479 states and 12459 transitions.
[2023-12-25 19:30:15,972 INFO  L78                 Accepts]: Start accepts. Automaton has 7479 states and 12459 transitions. Word has length 4957
[2023-12-25 19:30:15,973 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:30:15,973 INFO  L495      AbstractCegarLoop]: Abstraction has 7479 states and 12459 transitions.
[2023-12-25 19:30:15,975 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:15,975 INFO  L276                IsEmpty]: Start isEmpty. Operand 7479 states and 12459 transitions.
[2023-12-25 19:30:16,099 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4958
[2023-12-25 19:30:16,101 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:30:16,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:16,164 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 19:30:16,328 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:30:16,328 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:30:16,329 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:30:16,330 INFO  L85        PathProgramCache]: Analyzing trace with hash -298657988, now seen corresponding path program 1 times
[2023-12-25 19:30:16,330 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:30:16,330 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169757030]
[2023-12-25 19:30:16,330 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:16,331 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:30:16,634 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:30:16,634 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445696154]
[2023-12-25 19:30:16,635 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:16,636 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:30:16,636 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:30:16,637 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 19:30:16,643 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 19:30:21,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:30:21,618 INFO  L262         TraceCheckSpWp]: Trace formula consists of 21602 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:30:21,675 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:30:21,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:30:21,740 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:30:21,740 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:30:21,740 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169757030]
[2023-12-25 19:30:21,740 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:30:21,740 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445696154]
[2023-12-25 19:30:21,740 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [445696154] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:30:21,740 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:30:21,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:30:21,741 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055362375]
[2023-12-25 19:30:21,741 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:30:21,745 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:30:21,745 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:30:21,748 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:30:21,748 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:30:21,749 INFO  L87              Difference]: Start difference. First operand 7479 states and 12459 transitions. Second operand  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:21,876 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:30:21,876 INFO  L93              Difference]: Finished difference Result 14478 states and 24119 transitions.
[2023-12-25 19:30:21,877 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:30:21,878 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 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 4957
[2023-12-25 19:30:21,880 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:30:21,888 INFO  L225             Difference]: With dead ends: 14478
[2023-12-25 19:30:21,888 INFO  L226             Difference]: Without dead ends: 7488
[2023-12-25 19:30:21,895 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4956 GetRequests, 4954 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 19:30:21,895 INFO  L413           NwaCegarLoop]: 11964 mSDtfsCounter, 12 mSDsluCounter, 23918 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35882 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 19:30:21,896 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35882 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 19:30:21,902 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7488 states.
[2023-12-25 19:30:21,974 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7488 to 7480.
[2023-12-25 19:30:21,982 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7480 states, 7479 states have (on average 1.6659981280919909) internal successors, (12460), 7479 states have internal predecessors, (12460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:21,991 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7480 states to 7480 states and 12460 transitions.
[2023-12-25 19:30:21,991 INFO  L78                 Accepts]: Start accepts. Automaton has 7480 states and 12460 transitions. Word has length 4957
[2023-12-25 19:30:21,995 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:30:21,995 INFO  L495      AbstractCegarLoop]: Abstraction has 7480 states and 12460 transitions.
[2023-12-25 19:30:21,996 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:21,996 INFO  L276                IsEmpty]: Start isEmpty. Operand 7480 states and 12460 transitions.
[2023-12-25 19:30:22,224 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4958
[2023-12-25 19:30:22,224 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:30:22,226 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:22,292 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 19:30:22,446 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:30:22,447 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:30:22,447 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:30:22,449 INFO  L85        PathProgramCache]: Analyzing trace with hash -1134789366, now seen corresponding path program 1 times
[2023-12-25 19:30:22,449 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:30:22,449 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785660838]
[2023-12-25 19:30:22,449 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:22,449 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:30:22,759 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:30:22,760 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693141331]
[2023-12-25 19:30:22,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:22,761 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:30:22,761 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:30:22,762 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 19:30:22,785 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-12-25 19:30:27,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:30:27,634 INFO  L262         TraceCheckSpWp]: Trace formula consists of 21603 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-25 19:30:27,686 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:30:27,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:30:27,931 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-25 19:30:27,931 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:30:27,931 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785660838]
[2023-12-25 19:30:27,931 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:30:27,931 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693141331]
[2023-12-25 19:30:27,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [693141331] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 19:30:27,932 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 19:30:27,932 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 19:30:27,934 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245189979]
[2023-12-25 19:30:27,934 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:30:27,938 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 19:30:27,938 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:30:27,940 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 19:30:27,940 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 19:30:27,941 INFO  L87              Difference]: Start difference. First operand 7480 states and 12460 transitions. Second operand  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:28,066 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:30:28,066 INFO  L93              Difference]: Finished difference Result 14480 states and 24121 transitions.
[2023-12-25 19:30:28,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 19:30:28,068 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 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 4957
[2023-12-25 19:30:28,070 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:30:28,078 INFO  L225             Difference]: With dead ends: 14480
[2023-12-25 19:30:28,078 INFO  L226             Difference]: Without dead ends: 7489
[2023-12-25 19:30:28,084 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4956 GetRequests, 4954 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 19:30:28,085 INFO  L413           NwaCegarLoop]: 11964 mSDtfsCounter, 12 mSDsluCounter, 23918 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 35882 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 19:30:28,085 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 35882 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 19:30:28,091 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7489 states.
[2023-12-25 19:30:28,148 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7489 to 7481.
[2023-12-25 19:30:28,155 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7481 states, 7480 states have (on average 1.665909090909091) internal successors, (12461), 7480 states have internal predecessors, (12461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:28,163 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7481 states to 7481 states and 12461 transitions.
[2023-12-25 19:30:28,163 INFO  L78                 Accepts]: Start accepts. Automaton has 7481 states and 12461 transitions. Word has length 4957
[2023-12-25 19:30:28,164 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:30:28,164 INFO  L495      AbstractCegarLoop]: Abstraction has 7481 states and 12461 transitions.
[2023-12-25 19:30:28,165 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1239.25) internal successors, (4957), 4 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:28,165 INFO  L276                IsEmpty]: Start isEmpty. Operand 7481 states and 12461 transitions.
[2023-12-25 19:30:28,287 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4958
[2023-12-25 19:30:28,288 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:30:28,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:28,348 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2023-12-25 19:30:28,506 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:30:28,507 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:30:28,507 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:30:28,508 INFO  L85        PathProgramCache]: Analyzing trace with hash -1136909352, now seen corresponding path program 1 times
[2023-12-25 19:30:28,508 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:30:28,508 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869265848]
[2023-12-25 19:30:28,509 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:28,509 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:30:28,798 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:30:28,798 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420516577]
[2023-12-25 19:30:28,799 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:28,799 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:30:28,799 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:30:28,800 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 19:30:28,803 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-12-25 19:30:33,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:30:33,838 INFO  L262         TraceCheckSpWp]: Trace formula consists of 21604 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-25 19:30:33,901 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:30:34,303 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 4 proven. 194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:30:34,303 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 19:30:34,428 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked.
[2023-12-25 19:30:34,428 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:30:34,429 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869265848]
[2023-12-25 19:30:34,429 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:30:34,429 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420516577]
[2023-12-25 19:30:34,429 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [420516577] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-25 19:30:34,429 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-25 19:30:34,429 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12
[2023-12-25 19:30:34,430 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492249744]
[2023-12-25 19:30:34,430 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 19:30:34,435 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 19:30:34,435 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:30:34,437 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 19:30:34,437 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2023-12-25 19:30:34,438 INFO  L87              Difference]: Start difference. First operand 7481 states and 12461 transitions. Second operand  has 6 states, 6 states have (on average 794.3333333333334) internal successors, (4766), 6 states have internal predecessors, (4766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:46,485 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:30:46,485 INFO  L93              Difference]: Finished difference Result 34879 states and 57923 transitions.
[2023-12-25 19:30:46,485 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 19:30:46,487 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 794.3333333333334) internal successors, (4766), 6 states have internal predecessors, (4766), 0 states have call successors, (0), 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 4957
[2023-12-25 19:30:46,491 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:30:46,518 INFO  L225             Difference]: With dead ends: 34879
[2023-12-25 19:30:46,518 INFO  L226             Difference]: Without dead ends: 21450
[2023-12-25 19:30:46,532 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9913 GetRequests, 9902 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2023-12-25 19:30:46,533 INFO  L413           NwaCegarLoop]: 19672 mSDtfsCounter, 43204 mSDsluCounter, 57155 mSDsCounter, 0 mSdLazyCounter, 18980 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43204 SdHoareTripleChecker+Valid, 76827 SdHoareTripleChecker+Invalid, 19533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 18980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time
[2023-12-25 19:30:46,533 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [43204 Valid, 76827 Invalid, 19533 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [553 Valid, 18980 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time]
[2023-12-25 19:30:46,548 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21450 states.
[2023-12-25 19:30:46,643 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21450 to 7481.
[2023-12-25 19:30:46,650 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7481 states, 7480 states have (on average 1.665909090909091) internal successors, (12461), 7480 states have internal predecessors, (12461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:46,656 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7481 states to 7481 states and 12461 transitions.
[2023-12-25 19:30:46,656 INFO  L78                 Accepts]: Start accepts. Automaton has 7481 states and 12461 transitions. Word has length 4957
[2023-12-25 19:30:46,658 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:30:46,658 INFO  L495      AbstractCegarLoop]: Abstraction has 7481 states and 12461 transitions.
[2023-12-25 19:30:46,659 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 794.3333333333334) internal successors, (4766), 6 states have internal predecessors, (4766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:30:46,659 INFO  L276                IsEmpty]: Start isEmpty. Operand 7481 states and 12461 transitions.
[2023-12-25 19:30:46,856 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4959
[2023-12-25 19:30:46,856 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:30:46,858 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:46,927 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2023-12-25 19:30:47,084 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2023-12-25 19:30:47,084 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:30:47,085 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:30:47,087 INFO  L85        PathProgramCache]: Analyzing trace with hash 322430186, now seen corresponding path program 1 times
[2023-12-25 19:30:47,087 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:30:47,087 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399273263]
[2023-12-25 19:30:47,087 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:47,087 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:30:47,370 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:30:47,371 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073346157]
[2023-12-25 19:30:47,372 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:30:47,372 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:30:47,372 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:30:47,390 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 19:30:47,390 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-12-25 19:30:52,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:30:52,597 INFO  L262         TraceCheckSpWp]: Trace formula consists of 21608 conjuncts, 44 conjunts are in the unsatisfiable core
[2023-12-25 19:30:52,666 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:31:10,544 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 4 proven. 194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:31:10,545 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 19:31:32,000 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 94 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:31:32,001 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:31:32,001 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399273263]
[2023-12-25 19:31:32,001 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:31:32,001 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073346157]
[2023-12-25 19:31:32,001 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073346157] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-25 19:31:32,001 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-25 19:31:32,002 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17] total 34
[2023-12-25 19:31:32,002 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459089111]
[2023-12-25 19:31:32,002 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-25 19:31:32,010 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2023-12-25 19:31:32,010 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:31:32,015 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2023-12-25 19:31:32,015 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=978, Unknown=0, NotChecked=0, Total=1122
[2023-12-25 19:31:32,017 INFO  L87              Difference]: Start difference. First operand 7481 states and 12461 transitions. Second operand  has 34 states, 34 states have (on average 291.44117647058823) internal successors, (9909), 34 states have internal predecessors, (9909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:31:40,187 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:31:46,559 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:31:50,850 WARN  L539   Checker$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 19:31:55,090 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:33:06,430 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:33:12,441 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:33:15,422 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:33:19,399 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:33:23,428 WARN  L539   Checker$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 19:33:27,433 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:33:31,441 WARN  L539   Checker$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 19:33:35,613 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:33:39,830 WARN  L539   Checker$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 19:33:43,837 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:33:47,844 WARN  L539   Checker$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 19:33:51,852 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:33:56,050 WARN  L539   Checker$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 19:34:00,062 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:34:03,694 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:34:07,699 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:34:11,789 WARN  L539   Checker$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 19:34:13,414 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:34:17,064 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:34:21,183 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:34:25,338 WARN  L539   Checker$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 19:34:29,348 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:34:32,845 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:37:33,533 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 19:37:33,534 INFO  L93              Difference]: Finished difference Result 611684 states and 1015807 transitions.
[2023-12-25 19:37:33,534 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 575 states. 
[2023-12-25 19:37:33,535 INFO  L78                 Accepts]: Start accepts. Automaton has  has 34 states, 34 states have (on average 291.44117647058823) internal successors, (9909), 34 states have internal predecessors, (9909), 0 states have call successors, (0), 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 4958
[2023-12-25 19:37:33,553 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 19:37:34,463 INFO  L225             Difference]: With dead ends: 611684
[2023-12-25 19:37:34,463 INFO  L226             Difference]: Without dead ends: 604690
[2023-12-25 19:37:34,835 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10669 GetRequests, 10070 SyntacticMatches, 0 SemanticMatches, 599 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168304 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=37765, Invalid=322835, Unknown=0, NotChecked=0, Total=360600
[2023-12-25 19:37:34,836 INFO  L413           NwaCegarLoop]: 37457 mSDtfsCounter, 1647190 mSDsluCounter, 865274 mSDsCounter, 0 mSdLazyCounter, 139207 mSolverCounterSat, 4475 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 201.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647190 SdHoareTripleChecker+Valid, 902731 SdHoareTripleChecker+Invalid, 143701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.1s SdHoareTripleChecker+Time, 4475 IncrementalHoareTripleChecker+Valid, 139207 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 218.2s IncrementalHoareTripleChecker+Time
[2023-12-25 19:37:34,836 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1647190 Valid, 902731 Invalid, 143701 Unknown, 0 Unchecked, 3.1s Time], IncrementalHoareTripleChecker [4475 Valid, 139207 Invalid, 19 Unknown, 0 Unchecked, 218.2s Time]
[2023-12-25 19:37:35,222 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 604690 states.
[2023-12-25 19:37:38,008 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 604690 to 16959.
[2023-12-25 19:37:38,026 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16959 states, 16958 states have (on average 1.6657035027715532) internal successors, (28247), 16958 states have internal predecessors, (28247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:38,047 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16959 states to 16959 states and 28247 transitions.
[2023-12-25 19:37:38,047 INFO  L78                 Accepts]: Start accepts. Automaton has 16959 states and 28247 transitions. Word has length 4958
[2023-12-25 19:37:38,051 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 19:37:38,051 INFO  L495      AbstractCegarLoop]: Abstraction has 16959 states and 28247 transitions.
[2023-12-25 19:37:38,052 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 34 states, 34 states have (on average 291.44117647058823) internal successors, (9909), 34 states have internal predecessors, (9909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:37:38,052 INFO  L276                IsEmpty]: Start isEmpty. Operand 16959 states and 28247 transitions.
[2023-12-25 19:37:38,204 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4960
[2023-12-25 19:37:38,205 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 19:37:38,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:38,312 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2023-12-25 19:37:38,444 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:37:38,445 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 19:37:38,445 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 19:37:38,446 INFO  L85        PathProgramCache]: Analyzing trace with hash 1926496350, now seen corresponding path program 1 times
[2023-12-25 19:37:38,447 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 19:37:38,447 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793149662]
[2023-12-25 19:37:38,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:37:38,447 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 19:37:38,819 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-25 19:37:38,822 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1784803720]
[2023-12-25 19:37:38,823 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 19:37:38,823 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-25 19:37:38,823 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 19:37:38,836 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-25 19:37:38,876 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2023-12-25 19:37:44,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 19:37:44,548 INFO  L262         TraceCheckSpWp]: Trace formula consists of 21611 conjuncts, 55 conjunts are in the unsatisfiable core
[2023-12-25 19:37:44,611 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-25 19:38:02,145 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 2 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:38:02,145 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-25 19:38:13,216 INFO  L134       CoverageAnalysis]: Checked inductivity of 198 backedges. 90 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 19:38:13,216 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 19:38:13,216 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793149662]
[2023-12-25 19:38:13,216 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-25 19:38:13,216 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784803720]
[2023-12-25 19:38:13,216 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784803720] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-25 19:38:13,216 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-25 19:38:13,217 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19] total 40
[2023-12-25 19:38:13,217 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088563738]
[2023-12-25 19:38:13,217 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-25 19:38:13,225 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 40 states
[2023-12-25 19:38:13,225 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 19:38:13,230 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants.
[2023-12-25 19:38:13,245 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1404, Unknown=0, NotChecked=0, Total=1560
[2023-12-25 19:38:13,248 INFO  L87              Difference]: Start difference. First operand 16959 states and 28247 transitions. Second operand  has 40 states, 40 states have (on average 247.85) internal successors, (9914), 40 states have internal predecessors, (9914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-25 19:38:19,447 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:38:23,772 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:38:25,263 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:38:30,660 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:38:34,736 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:38:38,298 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:38:43,190 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:38:47,199 WARN  L539   Checker$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 19:38:51,210 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:38:55,222 WARN  L539   Checker$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 19:38:59,766 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:39:01,651 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:39:05,964 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-12-25 19:40:42,460 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.28s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:40:50,875 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:40:55,641 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:41:00,027 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:41:01,047 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2023-12-25 19:41:07,352 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 []
Received shutdown request...
[2023-12-25 19:42:06,496 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 741 states. 
[2023-12-25 19:42:06,496 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-25 19:42:06,504 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-25 19:42:06,533 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10770 GetRequests, 10000 SyntacticMatches, 0 SemanticMatches, 770 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275889 ImplicationChecksByTransitivity, 42.7s TimeCoverageRelationStatistics Valid=52205, Invalid=543007, Unknown=0, NotChecked=0, Total=595212
[2023-12-25 19:42:06,541 INFO  L413           NwaCegarLoop]: 24873 mSDtfsCounter, 1385757 mSDsluCounter, 1014443 mSDsCounter, 0 mSdLazyCounter, 6109 mSolverCounterSat, 107 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385757 SdHoareTripleChecker+Valid, 1039316 SdHoareTripleChecker+Invalid, 6228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.6s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 6109 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.4s IncrementalHoareTripleChecker+Time
[2023-12-25 19:42:06,541 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1385757 Valid, 1039316 Invalid, 6228 Unknown, 0 Unchecked, 2.6s Time], IncrementalHoareTripleChecker [107 Valid, 6109 Invalid, 12 Unknown, 0 Unchecked, 86.4s Time]
[2023-12-25 19:42:06,543 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-25 19:42:06,636 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2023-12-25 19:42:06,768 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2023-12-25 19:42:06,769 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (16959states) and FLOYD_HOARE automaton (currently 741 states, 40 states before enhancement),while ReachableStatesComputation was computing reachable states (728767 states constructed, input type IntersectNwa).
[2023-12-25 19:42:06,772 INFO  L445         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 19:42:06,774 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-25 19:42:06,775 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 07:42:06 BoogieIcfgContainer
[2023-12-25 19:42:06,775 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-25 19:42:06,775 INFO  L158              Benchmark]: Toolchain (without parser) took 766796.79ms. Allocated memory was 289.4MB in the beginning and 5.0GB in the end (delta: 4.7GB). Free memory was 227.7MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB.
[2023-12-25 19:42:06,776 INFO  L158              Benchmark]: CDTParser took 0.09ms. Allocated memory is still 195.0MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 19:42:06,776 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1462.78ms. Allocated memory was 289.4MB in the beginning and 508.6MB in the end (delta: 219.2MB). Free memory was 227.7MB in the beginning and 331.0MB in the end (delta: -103.3MB). Peak memory consumption was 215.9MB. Max. memory is 8.0GB.
[2023-12-25 19:42:06,776 INFO  L158              Benchmark]: Boogie Procedure Inliner took 2430.08ms. Allocated memory was 508.6MB in the beginning and 2.6GB in the end (delta: 2.1GB). Free memory was 331.0MB in the beginning and 2.0GB in the end (delta: -1.7GB). Peak memory consumption was 456.1MB. Max. memory is 8.0GB.
[2023-12-25 19:42:06,776 INFO  L158              Benchmark]: Boogie Preprocessor took 2735.68ms. Allocated memory is still 2.6GB. Free memory was 2.0GB in the beginning and 1.8GB in the end (delta: 195.0MB). Peak memory consumption was 244.8MB. Max. memory is 8.0GB.
[2023-12-25 19:42:06,776 INFO  L158              Benchmark]: RCFGBuilder took 12906.77ms. Allocated memory was 2.6GB in the beginning and 4.7GB in the end (delta: 2.2GB). Free memory was 1.8GB in the beginning and 3.7GB in the end (delta: -1.9GB). Peak memory consumption was 542.1MB. Max. memory is 8.0GB.
[2023-12-25 19:42:06,776 INFO  L158              Benchmark]: TraceAbstraction took 747244.63ms. Allocated memory was 4.7GB in the beginning and 5.0GB in the end (delta: 256.9MB). Free memory was 3.7GB in the beginning and 1.6GB in the end (delta: 2.1GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB.
[2023-12-25 19:42:06,777 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 195.0MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 1462.78ms. Allocated memory was 289.4MB in the beginning and 508.6MB in the end (delta: 219.2MB). Free memory was 227.7MB in the beginning and 331.0MB in the end (delta: -103.3MB). Peak memory consumption was 215.9MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 2430.08ms. Allocated memory was 508.6MB in the beginning and 2.6GB in the end (delta: 2.1GB). Free memory was 331.0MB in the beginning and 2.0GB in the end (delta: -1.7GB). Peak memory consumption was 456.1MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 2735.68ms. Allocated memory is still 2.6GB. Free memory was 2.0GB in the beginning and 1.8GB in the end (delta: 195.0MB). Peak memory consumption was 244.8MB. Max. memory is 8.0GB.
 * RCFGBuilder took 12906.77ms. Allocated memory was 2.6GB in the beginning and 4.7GB in the end (delta: 2.2GB). Free memory was 1.8GB in the beginning and 3.7GB in the end (delta: -1.9GB). Peak memory consumption was 542.1MB. Max. memory is 8.0GB.
 * TraceAbstraction took 747244.63ms. Allocated memory was 4.7GB in the beginning and 5.0GB in the end (delta: 256.9MB). Free memory was 3.7GB in the beginning and 1.6GB in the end (delta: 2.1GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (16959states) and FLOYD_HOARE automaton (currently 741 states, 40 states before enhancement),while ReachableStatesComputation was computing reachable states (728767 states constructed, input type IntersectNwa).
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 7181 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 747.1s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.0s, AutomataDifference: 611.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 31 mSolverCounterUnknown, 3123238 SdHoareTripleChecker+Valid, 316.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3123238 mSDsluCounter, 2378175 SdHoareTripleChecker+Invalid, 297.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2176061 mSDsCounter, 5137 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164463 IncrementalHoareTripleChecker+Invalid, 169631 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5137 mSolverCounterUnsat, 202114 mSDtfsCounter, 164463 mSolverCounterSat, 6.3s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66061 GetRequests, 64657 SyntacticMatches, 0 SemanticMatches, 1404 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444219 ImplicationChecksByTransitivity, 67.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16959occurred in iteration=12, InterpolantAutomatonStates: 623, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 608729 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.8s SsaConstructionTime, 28.9s SatisfiabilityAnalysisTime, 73.2s InterpolantComputationTime, 50572 NumberOfCodeBlocks, 50572 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 65430 ConstructedInterpolants, 0 QuantifiedInterpolants, 257430 SizeOfPredicates, 49 NumberOfNonLiveVariables, 216023 ConjunctsInSsa, 160 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 1778/2574 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown
[2023-12-25 19:42:07,028 WARN  L435       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process
[2023-12-25 19:42:07,164 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 137

!ENTRY org.eclipse.osgi 4 0 2023-12-25 19:42:07.191
!MESSAGE Application error
!STACK 1
org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b95ed4fb/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory)
	at java.base/java.io.FileOutputStream.open0(Native Method)
	at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298)
	at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:237)
	at java.base/java.io.FileOutputStream.<init>(FileOutputStream.java:187)
	at org.eclipse.core.internal.localstore.SafeFileOutputStream.<init>(SafeFileOutputStream.java:55)
	at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381)
	at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168)
	at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333)
	at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1438)
An error has occurred. See the log file
/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b95ed4fb/.metadata/.log.