/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-56.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-20 20:27:10,497 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-20 20:27:10,577 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-20 20:27:10,582 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-20 20:27:10,583 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-20 20:27:10,609 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-20 20:27:10,610 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-20 20:27:10,610 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-20 20:27:10,611 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-20 20:27:10,614 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-20 20:27:10,614 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-20 20:27:10,615 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-20 20:27:10,616 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-20 20:27:10,617 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-20 20:27:10,617 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-20 20:27:10,617 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-20 20:27:10,618 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-20 20:27:10,618 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-20 20:27:10,618 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-20 20:27:10,618 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-20 20:27:10,618 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-20 20:27:10,619 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-20 20:27:10,619 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-20 20:27:10,619 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-20 20:27:10,619 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-20 20:27:10,620 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-20 20:27:10,620 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-20 20:27:10,620 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-20 20:27:10,620 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-20 20:27:10,621 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-20 20:27:10,622 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-20 20:27:10,622 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-20 20:27:10,622 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 20:27:10,622 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-20 20:27:10,622 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-20 20:27:10,622 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-20 20:27:10,622 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-20 20:27:10,623 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-20 20:27:10,623 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-20 20:27:10,623 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-20 20:27:10,623 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-20 20:27:10,623 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-20 20:27:10,623 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-20 20:27:10,624 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-20 20:27:10,877 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-20 20:27:10,907 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-20 20:27:10,909 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-20 20:27:10,910 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-20 20:27:10,910 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-20 20:27:10,911 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-56.i
[2023-12-20 20:27:12,003 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-20 20:27:12,204 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-20 20:27:12,204 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-56.i
[2023-12-20 20:27:12,213 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6045ecec/9f70762b7ead4bc3a7bd451f9ce4de7b/FLAGe00608460
[2023-12-20 20:27:12,225 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6045ecec/9f70762b7ead4bc3a7bd451f9ce4de7b
[2023-12-20 20:27:12,227 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-20 20:27:12,228 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-20 20:27:12,229 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-20 20:27:12,229 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-20 20:27:12,235 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-20 20:27:12,236 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,237 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4d34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12, skipping insertion in model container
[2023-12-20 20:27:12,237 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,281 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-20 20:27:12,401 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-56.i[915,928]
[2023-12-20 20:27:12,480 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 20:27:12,498 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-20 20:27:12,510 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-56.i[915,928]
[2023-12-20 20:27:12,550 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 20:27:12,565 INFO  L206         MainTranslator]: Completed translation
[2023-12-20 20:27:12,565 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12 WrapperNode
[2023-12-20 20:27:12,566 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-20 20:27:12,566 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-20 20:27:12,567 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-20 20:27:12,567 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-20 20:27:12,573 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,597 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,652 INFO  L138                Inliner]: procedures = 26, calls = 67, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 277
[2023-12-20 20:27:12,653 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-20 20:27:12,653 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-20 20:27:12,654 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-20 20:27:12,654 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-20 20:27:12,669 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,669 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,685 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,719 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].
[2023-12-20 20:27:12,730 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,753 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,782 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,786 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,789 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,791 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,804 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-20 20:27:12,806 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-20 20:27:12,806 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-20 20:27:12,806 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-20 20:27:12,806 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (1/1) ...
[2023-12-20 20:27:12,811 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 20:27:12,821 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 20:27:12,836 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)
[2023-12-20 20:27:12,844 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
[2023-12-20 20:27:12,864 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-20 20:27:12,864 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-20 20:27:12,864 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-20 20:27:12,864 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-20 20:27:12,864 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-20 20:27:12,865 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-20 20:27:12,969 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-20 20:27:12,973 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-20 20:27:13,414 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-20 20:27:13,456 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-20 20:27:13,456 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-20 20:27:13,457 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 08:27:13 BoogieIcfgContainer
[2023-12-20 20:27:13,457 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-20 20:27:13,459 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-20 20:27:13,459 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-20 20:27:13,462 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-20 20:27:13,462 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 08:27:12" (1/3) ...
[2023-12-20 20:27:13,463 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4cfed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 08:27:13, skipping insertion in model container
[2023-12-20 20:27:13,464 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:27:12" (2/3) ...
[2023-12-20 20:27:13,464 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4cfed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 08:27:13, skipping insertion in model container
[2023-12-20 20:27:13,464 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 08:27:13" (3/3) ...
[2023-12-20 20:27:13,469 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-56.i
[2023-12-20 20:27:13,485 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-20 20:27:13,485 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-20 20:27:13,541 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-20 20:27:13,548 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;@4f0942fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-20 20:27:13,548 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-20 20:27:13,552 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 117 states, 60 states have (on average 1.35) internal successors, (81), 61 states have internal predecessors, (81), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2023-12-20 20:27:13,581 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 321
[2023-12-20 20:27:13,582 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 20:27:13,583 INFO  L195           NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 20:27:13,583 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 20:27:13,587 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 20:27:13,588 INFO  L85        PathProgramCache]: Analyzing trace with hash 519156629, now seen corresponding path program 1 times
[2023-12-20 20:27:13,595 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 20:27:13,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886199852]
[2023-12-20 20:27:13,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:27:13,596 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 20:27:13,707 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 20:27:13,832 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 20:27:13,832 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886199852]
[2023-12-20 20:27:13,832 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-20 20:27:13,833 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745015868]
[2023-12-20 20:27:13,833 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:27:13,833 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 20:27:13,833 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 20:27:13,844 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)
[2023-12-20 20:27:13,870 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-20 20:27:14,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 20:27:14,106 INFO  L262         TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-20 20:27:14,117 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 20:27:14,196 INFO  L134       CoverageAnalysis]: Checked inductivity of 5724 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 5618 trivial. 0 not checked.
[2023-12-20 20:27:14,197 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 20:27:14,197 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [745015868] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 20:27:14,197 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 20:27:14,198 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 20:27:14,199 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874181350]
[2023-12-20 20:27:14,200 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 20:27:14,204 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-20 20:27:14,204 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 20:27:14,251 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-20 20:27:14,252 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 20:27:14,255 INFO  L87              Difference]: Start difference. First operand  has 117 states, 60 states have (on average 1.35) internal successors, (81), 61 states have internal predecessors, (81), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand  has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54)
[2023-12-20 20:27:14,334 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 20:27:14,334 INFO  L93              Difference]: Finished difference Result 231 states and 430 transitions.
[2023-12-20 20:27:14,336 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-20 20:27:14,337 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54) Word has length 320
[2023-12-20 20:27:14,337 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 20:27:14,346 INFO  L225             Difference]: With dead ends: 231
[2023-12-20 20:27:14,346 INFO  L226             Difference]: Without dead ends: 115
[2023-12-20 20:27:14,353 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 20:27:14,355 INFO  L413           NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 20:27:14,356 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 20:27:14,369 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 115 states.
[2023-12-20 20:27:14,419 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115.
[2023-12-20 20:27:14,420 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 59 states have internal predecessors, (76), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2023-12-20 20:27:14,426 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 184 transitions.
[2023-12-20 20:27:14,428 INFO  L78                 Accepts]: Start accepts. Automaton has 115 states and 184 transitions. Word has length 320
[2023-12-20 20:27:14,430 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 20:27:14,430 INFO  L495      AbstractCegarLoop]: Abstraction has 115 states and 184 transitions.
[2023-12-20 20:27:14,430 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 2 states have call successors, (54)
[2023-12-20 20:27:14,431 INFO  L276                IsEmpty]: Start isEmpty. Operand 115 states and 184 transitions.
[2023-12-20 20:27:14,442 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 321
[2023-12-20 20:27:14,443 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 20:27:14,443 INFO  L195           NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 20:27:14,456 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-20 20:27:14,650 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-20 20:27:14,651 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 20:27:14,651 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 20:27:14,651 INFO  L85        PathProgramCache]: Analyzing trace with hash -2037729391, now seen corresponding path program 1 times
[2023-12-20 20:27:14,652 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 20:27:14,652 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554037757]
[2023-12-20 20:27:14,652 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:27:14,652 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 20:27:14,732 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 20:27:14,732 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [887141643]
[2023-12-20 20:27:14,732 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:27:14,733 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 20:27:14,733 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 20:27:14,740 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)
[2023-12-20 20:27:14,759 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-20 20:27:14,910 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 20:27:14,914 INFO  L262         TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-20 20:27:14,922 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 20:27:15,363 INFO  L134       CoverageAnalysis]: Checked inductivity of 5724 backedges. 845 proven. 147 refuted. 0 times theorem prover too weak. 4732 trivial. 0 not checked.
[2023-12-20 20:27:15,363 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-20 20:27:15,682 INFO  L134       CoverageAnalysis]: Checked inductivity of 5724 backedges. 12 proven. 147 refuted. 0 times theorem prover too weak. 5565 trivial. 0 not checked.
[2023-12-20 20:27:15,683 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 20:27:15,683 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554037757]
[2023-12-20 20:27:15,683 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 20:27:15,683 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887141643]
[2023-12-20 20:27:15,684 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [887141643] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-20 20:27:15,684 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-20 20:27:15,684 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-20 20:27:15,684 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391669208]
[2023-12-20 20:27:15,684 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-20 20:27:15,686 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-20 20:27:15,686 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 20:27:15,687 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-20 20:27:15,687 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-20 20:27:15,688 INFO  L87              Difference]: Start difference. First operand 115 states and 184 transitions. Second operand  has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104)
[2023-12-20 20:27:16,038 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 20:27:16,039 INFO  L93              Difference]: Finished difference Result 235 states and 372 transitions.
[2023-12-20 20:27:16,039 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-20 20:27:16,040 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 320
[2023-12-20 20:27:16,041 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 20:27:16,043 INFO  L225             Difference]: With dead ends: 235
[2023-12-20 20:27:16,043 INFO  L226             Difference]: Without dead ends: 121
[2023-12-20 20:27:16,044 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 632 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-20 20:27:16,045 INFO  L413           NwaCegarLoop]: 122 mSDtfsCounter, 41 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-20 20:27:16,045 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 258 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-20 20:27:16,046 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 121 states.
[2023-12-20 20:27:16,064 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119.
[2023-12-20 20:27:16,064 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 119 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 62 states have internal predecessors, (78), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54)
[2023-12-20 20:27:16,066 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 186 transitions.
[2023-12-20 20:27:16,066 INFO  L78                 Accepts]: Start accepts. Automaton has 119 states and 186 transitions. Word has length 320
[2023-12-20 20:27:16,067 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 20:27:16,067 INFO  L495      AbstractCegarLoop]: Abstraction has 119 states and 186 transitions.
[2023-12-20 20:27:16,067 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104)
[2023-12-20 20:27:16,068 INFO  L276                IsEmpty]: Start isEmpty. Operand 119 states and 186 transitions.
[2023-12-20 20:27:16,072 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 321
[2023-12-20 20:27:16,072 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 20:27:16,072 INFO  L195           NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 20:27:16,084 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-20 20:27:16,284 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-20 20:27:16,285 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 20:27:16,285 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 20:27:16,285 INFO  L85        PathProgramCache]: Analyzing trace with hash 482230543, now seen corresponding path program 1 times
[2023-12-20 20:27:16,286 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 20:27:16,286 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342014160]
[2023-12-20 20:27:16,286 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:27:16,286 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 20:27:16,347 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 20:27:16,347 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1960616827]
[2023-12-20 20:27:16,347 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:27:16,347 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 20:27:16,347 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 20:27:16,350 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)
[2023-12-20 20:27:16,369 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-20 20:27:16,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 20:27:16,524 INFO  L262         TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-20 20:27:16,531 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 20:27:16,627 INFO  L134       CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked.
[2023-12-20 20:27:16,627 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 20:27:16,627 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 20:27:16,627 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342014160]
[2023-12-20 20:27:16,627 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 20:27:16,627 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960616827]
[2023-12-20 20:27:16,628 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960616827] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 20:27:16,628 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 20:27:16,628 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-20 20:27:16,628 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846119561]
[2023-12-20 20:27:16,628 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 20:27:16,629 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-20 20:27:16,629 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 20:27:16,629 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-20 20:27:16,630 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-20 20:27:16,630 INFO  L87              Difference]: Start difference. First operand 119 states and 186 transitions. Second operand  has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54)
[2023-12-20 20:27:16,707 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 20:27:16,707 INFO  L93              Difference]: Finished difference Result 265 states and 408 transitions.
[2023-12-20 20:27:16,707 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-20 20:27:16,708 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 320
[2023-12-20 20:27:16,709 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 20:27:16,710 INFO  L225             Difference]: With dead ends: 265
[2023-12-20 20:27:16,710 INFO  L226             Difference]: Without dead ends: 144
[2023-12-20 20:27:16,711 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-20 20:27:16,712 INFO  L413           NwaCegarLoop]: 175 mSDtfsCounter, 68 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 20:27:16,712 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 673 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 20:27:16,713 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 144 states.
[2023-12-20 20:27:16,731 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 141.
[2023-12-20 20:27:16,731 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 141 states, 79 states have (on average 1.2658227848101267) internal successors, (100), 80 states have internal predecessors, (100), 58 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58)
[2023-12-20 20:27:16,732 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 216 transitions.
[2023-12-20 20:27:16,733 INFO  L78                 Accepts]: Start accepts. Automaton has 141 states and 216 transitions. Word has length 320
[2023-12-20 20:27:16,733 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 20:27:16,734 INFO  L495      AbstractCegarLoop]: Abstraction has 141 states and 216 transitions.
[2023-12-20 20:27:16,734 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54)
[2023-12-20 20:27:16,734 INFO  L276                IsEmpty]: Start isEmpty. Operand 141 states and 216 transitions.
[2023-12-20 20:27:16,736 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 321
[2023-12-20 20:27:16,736 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 20:27:16,736 INFO  L195           NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 20:27:16,777 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-20 20:27:16,942 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 20:27:16,942 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 20:27:16,943 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 20:27:16,943 INFO  L85        PathProgramCache]: Analyzing trace with hash 89203533, now seen corresponding path program 1 times
[2023-12-20 20:27:16,943 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 20:27:16,943 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977813548]
[2023-12-20 20:27:16,943 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:27:16,943 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 20:27:16,994 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 20:27:16,994 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [422016207]
[2023-12-20 20:27:16,994 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:27:16,994 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 20:27:16,995 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 20:27:16,996 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)
[2023-12-20 20:27:16,999 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-20 20:27:17,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 20:27:17,281 INFO  L262         TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 46 conjunts are in the unsatisfiable core
[2023-12-20 20:27:17,291 INFO  L285         TraceCheckSpWp]: Computing forward predicates...