/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-91.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 10:15:00,138 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 10:15:00,214 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-19 10:15:00,217 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 10:15:00,217 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 10:15:00,244 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 10:15:00,245 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 10:15:00,245 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 10:15:00,246 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 10:15:00,249 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 10:15:00,249 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 10:15:00,249 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 10:15:00,250 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 10:15:00,250 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 10:15:00,251 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 10:15:00,251 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 10:15:00,251 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 10:15:00,251 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 10:15:00,251 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 10:15:00,251 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 10:15:00,252 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 10:15:00,252 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 10:15:00,252 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 10:15:00,252 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 10:15:00,252 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 10:15:00,252 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 10:15:00,253 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 10:15:00,253 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 10:15:00,253 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 10:15:00,253 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 10:15:00,254 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 10:15:00,254 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 10:15:00,254 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 10:15:00,254 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 10:15:00,255 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 10:15:00,255 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 10:15:00,255 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 10:15:00,255 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 10:15:00,255 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 10:15:00,255 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 10:15:00,255 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 10:15:00,255 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 10:15:00,255 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 10:15:00,256 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 10:15:00,460 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 10:15:00,481 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 10:15:00,483 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 10:15:00,484 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 10:15:00,484 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 10:15:00,485 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-91.i
[2023-12-19 10:15:01,649 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 10:15:01,834 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 10:15:01,834 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-91.i
[2023-12-19 10:15:01,850 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d396fe182/81a46933d064461bb1dd8ddab6191302/FLAGdc8bf83d3
[2023-12-19 10:15:01,865 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d396fe182/81a46933d064461bb1dd8ddab6191302
[2023-12-19 10:15:01,867 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 10:15:01,868 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 10:15:01,871 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 10:15:01,871 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 10:15:01,875 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 10:15:01,876 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:15:01" (1/1) ...
[2023-12-19 10:15:01,877 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b833b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:01, skipping insertion in model container
[2023-12-19 10:15:01,877 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:15:01" (1/1) ...
[2023-12-19 10:15:01,914 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 10:15:02,026 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_fillercodestructure_filler-ps-co_file-91.i[919,932]
[2023-12-19 10:15:02,081 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 10:15:02,101 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 10:15:02,113 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_fillercodestructure_filler-ps-co_file-91.i[919,932]
[2023-12-19 10:15:02,142 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 10:15:02,182 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 10:15:02,182 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02 WrapperNode
[2023-12-19 10:15:02,182 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 10:15:02,183 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 10:15:02,183 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 10:15:02,183 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 10:15:02,189 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,198 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,263 INFO  L138                Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 253
[2023-12-19 10:15:02,264 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 10:15:02,265 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 10:15:02,265 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 10:15:02,265 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 10:15:02,274 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,274 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,278 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,293 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].
[2023-12-19 10:15:02,293 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,294 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,304 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,307 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,310 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,312 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,317 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 10:15:02,318 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 10:15:02,318 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 10:15:02,318 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 10:15:02,319 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (1/1) ...
[2023-12-19 10:15:02,325 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 10:15:02,335 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 10:15:02,368 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)
[2023-12-19 10:15:02,385 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
[2023-12-19 10:15:02,406 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 10:15:02,406 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 10:15:02,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 10:15:02,406 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 10:15:02,406 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 10:15:02,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 10:15:02,502 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 10:15:02,506 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 10:15:02,894 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 10:15:02,950 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 10:15:02,951 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 10:15:02,951 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:15:02 BoogieIcfgContainer
[2023-12-19 10:15:02,951 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 10:15:02,954 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 10:15:02,954 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 10:15:02,956 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 10:15:02,957 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:15:01" (1/3) ...
[2023-12-19 10:15:02,958 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437052c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:15:02, skipping insertion in model container
[2023-12-19 10:15:02,958 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:15:02" (2/3) ...
[2023-12-19 10:15:02,958 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437052c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:15:02, skipping insertion in model container
[2023-12-19 10:15:02,958 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:15:02" (3/3) ...
[2023-12-19 10:15:02,960 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-91.i
[2023-12-19 10:15:02,974 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 10:15:02,974 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 10:15:03,028 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 10:15:03,034 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;@2c6ec78b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 10:15:03,035 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 10:15:03,041 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 103 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 60 states have internal predecessors, (82), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41)
[2023-12-19 10:15:03,078 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2023-12-19 10:15:03,078 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 10:15:03,079 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 10:15:03,080 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 10:15:03,087 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 10:15:03,087 INFO  L85        PathProgramCache]: Analyzing trace with hash -68670184, now seen corresponding path program 1 times
[2023-12-19 10:15:03,094 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 10:15:03,094 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585425648]
[2023-12-19 10:15:03,095 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:15:03,095 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 10:15:03,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 10:15:03,304 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 10:15:03,305 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585425648]
[2023-12-19 10:15:03,305 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-19 10:15:03,305 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579229499]
[2023-12-19 10:15:03,305 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:15:03,306 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 10:15:03,306 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 10:15:03,318 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)
[2023-12-19 10:15:03,350 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-19 10:15:03,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 10:15:03,542 INFO  L262         TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-19 10:15:03,555 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 10:15:03,613 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 3200 trivial. 0 not checked.
[2023-12-19 10:15:03,613 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 10:15:03,614 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579229499] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 10:15:03,614 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 10:15:03,614 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-19 10:15:03,616 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759813656]
[2023-12-19 10:15:03,616 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 10:15:03,620 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-19 10:15:03,620 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 10:15:03,661 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-19 10:15:03,661 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 10:15:03,663 INFO  L87              Difference]: Start difference. First operand  has 103 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 60 states have internal predecessors, (82), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand  has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 2 states have call successors, (41)
[2023-12-19 10:15:03,730 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 10:15:03,731 INFO  L93              Difference]: Finished difference Result 203 states and 367 transitions.
[2023-12-19 10:15:03,740 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-19 10:15:03,741 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 2 states have call successors, (41) Word has length 254
[2023-12-19 10:15:03,741 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 10:15:03,746 INFO  L225             Difference]: With dead ends: 203
[2023-12-19 10:15:03,747 INFO  L226             Difference]: Without dead ends: 101
[2023-12-19 10:15:03,750 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 10:15:03,752 INFO  L413           NwaCegarLoop]: 155 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, 155 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
[2023-12-19 10:15:03,755 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 10:15:03,768 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2023-12-19 10:15:03,796 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101.
[2023-12-19 10:15:03,798 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 101 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 58 states have internal predecessors, (76), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41)
[2023-12-19 10:15:03,802 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 158 transitions.
[2023-12-19 10:15:03,803 INFO  L78                 Accepts]: Start accepts. Automaton has 101 states and 158 transitions. Word has length 254
[2023-12-19 10:15:03,804 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 10:15:03,805 INFO  L495      AbstractCegarLoop]: Abstraction has 101 states and 158 transitions.
[2023-12-19 10:15:03,805 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 2 states have call successors, (41)
[2023-12-19 10:15:03,805 INFO  L276                IsEmpty]: Start isEmpty. Operand 101 states and 158 transitions.
[2023-12-19 10:15:03,812 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 256
[2023-12-19 10:15:03,813 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 10:15:03,813 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 10:15:03,822 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-12-19 10:15:04,019 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
[2023-12-19 10:15:04,020 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 10:15:04,020 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 10:15:04,021 INFO  L85        PathProgramCache]: Analyzing trace with hash -1936038357, now seen corresponding path program 1 times
[2023-12-19 10:15:04,021 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 10:15:04,021 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883262143]
[2023-12-19 10:15:04,021 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:15:04,021 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 10:15:04,115 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 10:15:04,116 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312119437]
[2023-12-19 10:15:04,116 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:15:04,116 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 10:15:04,116 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 10:15:04,121 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)
[2023-12-19 10:15:04,153 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-19 10:15:04,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 10:15:04,289 INFO  L262         TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-19 10:15:04,294 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 10:15:04,340 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked.
[2023-12-19 10:15:04,340 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 10:15:04,340 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 10:15:04,340 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883262143]
[2023-12-19 10:15:04,341 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 10:15:04,341 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312119437]
[2023-12-19 10:15:04,341 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312119437] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 10:15:04,341 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 10:15:04,341 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 10:15:04,341 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051507100]
[2023-12-19 10:15:04,341 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 10:15:04,342 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 10:15:04,342 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 10:15:04,343 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 10:15:04,343 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 10:15:04,343 INFO  L87              Difference]: Start difference. First operand 101 states and 158 transitions. Second operand  has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-19 10:15:04,387 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 10:15:04,387 INFO  L93              Difference]: Finished difference Result 298 states and 466 transitions.
[2023-12-19 10:15:04,387 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 10:15:04,387 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 255
[2023-12-19 10:15:04,388 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 10:15:04,390 INFO  L225             Difference]: With dead ends: 298
[2023-12-19 10:15:04,390 INFO  L226             Difference]: Without dead ends: 198
[2023-12-19 10:15:04,391 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 10:15:04,392 INFO  L413           NwaCegarLoop]: 298 mSDtfsCounter, 148 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 10:15:04,392 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 442 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 10:15:04,393 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 198 states.
[2023-12-19 10:15:04,422 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 188.
[2023-12-19 10:15:04,422 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 188 states, 103 states have (on average 1.2427184466019416) internal successors, (128), 103 states have internal predecessors, (128), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82)
[2023-12-19 10:15:04,424 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 292 transitions.
[2023-12-19 10:15:04,424 INFO  L78                 Accepts]: Start accepts. Automaton has 188 states and 292 transitions. Word has length 255
[2023-12-19 10:15:04,425 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 10:15:04,425 INFO  L495      AbstractCegarLoop]: Abstraction has 188 states and 292 transitions.
[2023-12-19 10:15:04,425 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41)
[2023-12-19 10:15:04,425 INFO  L276                IsEmpty]: Start isEmpty. Operand 188 states and 292 transitions.
[2023-12-19 10:15:04,427 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 257
[2023-12-19 10:15:04,427 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 10:15:04,427 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 10:15:04,439 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-19 10:15:04,635 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
[2023-12-19 10:15:04,635 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 10:15:04,636 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 10:15:04,636 INFO  L85        PathProgramCache]: Analyzing trace with hash -555738948, now seen corresponding path program 1 times
[2023-12-19 10:15:04,636 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 10:15:04,637 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041821528]
[2023-12-19 10:15:04,637 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:15:04,637 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 10:15:04,714 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 10:15:04,715 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468106427]
[2023-12-19 10:15:04,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:15:04,715 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 10:15:04,715 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 10:15:04,717 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)
[2023-12-19 10:15:04,732 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-19 10:15:04,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 10:15:04,865 INFO  L262         TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-19 10:15:04,870 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 10:15:04,999 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 1374 proven. 33 refuted. 0 times theorem prover too weak. 1873 trivial. 0 not checked.
[2023-12-19 10:15:04,999 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-19 10:15:05,214 INFO  L134       CoverageAnalysis]: Checked inductivity of 3280 backedges. 87 proven. 33 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked.
[2023-12-19 10:15:05,214 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 10:15:05,214 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041821528]
[2023-12-19 10:15:05,215 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 10:15:05,215 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468106427]
[2023-12-19 10:15:05,215 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468106427] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-19 10:15:05,215 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-19 10:15:05,215 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2023-12-19 10:15:05,215 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060676056]
[2023-12-19 10:15:05,215 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-19 10:15:05,216 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-19 10:15:05,216 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 10:15:05,217 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-19 10:15:05,217 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-19 10:15:05,217 INFO  L87              Difference]: Start difference. First operand 188 states and 292 transitions. Second operand  has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53)
[2023-12-19 10:15:05,493 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 10:15:05,493 INFO  L93              Difference]: Finished difference Result 391 states and 597 transitions.
[2023-12-19 10:15:05,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-19 10:15:05,509 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 256
[2023-12-19 10:15:05,510 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 10:15:05,511 INFO  L225             Difference]: With dead ends: 391
[2023-12-19 10:15:05,511 INFO  L226             Difference]: Without dead ends: 204
[2023-12-19 10:15:05,512 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 504 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110
[2023-12-19 10:15:05,513 INFO  L413           NwaCegarLoop]: 110 mSDtfsCounter, 145 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-19 10:15:05,513 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 245 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-19 10:15:05,514 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 204 states.
[2023-12-19 10:15:05,546 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 196.
[2023-12-19 10:15:05,546 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 196 states, 109 states have (on average 1.2110091743119267) internal successors, (132), 109 states have internal predecessors, (132), 82 states have call successors, (82), 4 states have call predecessors, (82), 4 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82)
[2023-12-19 10:15:05,548 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 296 transitions.
[2023-12-19 10:15:05,548 INFO  L78                 Accepts]: Start accepts. Automaton has 196 states and 296 transitions. Word has length 256
[2023-12-19 10:15:05,549 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 10:15:05,549 INFO  L495      AbstractCegarLoop]: Abstraction has 196 states and 296 transitions.
[2023-12-19 10:15:05,549 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53)
[2023-12-19 10:15:05,549 INFO  L276                IsEmpty]: Start isEmpty. Operand 196 states and 296 transitions.
[2023-12-19 10:15:05,551 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 257
[2023-12-19 10:15:05,551 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 10:15:05,551 INFO  L195           NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-19 10:15:05,560 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-19 10:15:05,752 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
[2023-12-19 10:15:05,752 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 10:15:05,753 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 10:15:05,753 INFO  L85        PathProgramCache]: Analyzing trace with hash 2050284606, now seen corresponding path program 1 times
[2023-12-19 10:15:05,753 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 10:15:05,753 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504472921]
[2023-12-19 10:15:05,753 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:15:05,753 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 10:15:05,801 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 10:15:05,801 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [111790998]
[2023-12-19 10:15:05,801 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 10:15:05,802 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 10:15:05,802 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 10:15:05,807 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)
[2023-12-19 10:15:05,828 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-19 10:15:05,943 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 10:15:05,946 INFO  L262         TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 20 conjunts are in the unsatisfiable core
[2023-12-19 10:15:05,953 INFO  L285         TraceCheckSpWp]: Computing forward predicates...