/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_fillercodesize_ps-cn-25_file-45.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 07:20:06,301 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 07:20:06,370 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 07:20:06,374 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 07:20:06,374 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 07:20:06,400 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 07:20:06,401 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 07:20:06,401 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 07:20:06,402 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 07:20:06,405 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 07:20:06,405 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 07:20:06,406 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 07:20:06,406 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 07:20:06,407 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 07:20:06,407 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 07:20:06,407 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 07:20:06,408 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 07:20:06,408 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 07:20:06,408 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 07:20:06,408 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 07:20:06,408 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 07:20:06,409 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 07:20:06,409 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 07:20:06,409 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 07:20:06,409 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 07:20:06,409 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 07:20:06,409 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 07:20:06,410 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 07:20:06,410 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 07:20:06,410 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 07:20:06,411 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 07:20:06,411 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 07:20:06,411 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 07:20:06,411 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 07:20:06,411 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 07:20:06,412 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 07:20:06,412 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 07:20:06,412 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 07:20:06,412 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 07:20:06,412 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 07:20:06,412 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 07:20:06,412 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 07:20:06,412 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 07:20:06,412 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 07:20:06,583 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 07:20:06,612 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 07:20:06,614 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 07:20:06,615 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 07:20:06,620 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 07:20:06,621 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-45.i
[2023-12-19 07:20:07,910 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 07:20:08,073 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 07:20:08,073 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-45.i
[2023-12-19 07:20:08,085 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9de3632c/5591ecc90a7b460b99d654dccf83cf9c/FLAG225277491
[2023-12-19 07:20:08,095 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9de3632c/5591ecc90a7b460b99d654dccf83cf9c
[2023-12-19 07:20:08,097 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 07:20:08,098 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 07:20:08,099 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 07:20:08,099 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 07:20:08,104 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 07:20:08,104 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,105 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7f11f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08, skipping insertion in model container
[2023-12-19 07:20:08,105 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,130 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 07:20:08,226 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-25_file-45.i[915,928]
[2023-12-19 07:20:08,265 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 07:20:08,274 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 07:20:08,283 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-25_file-45.i[915,928]
[2023-12-19 07:20:08,337 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 07:20:08,357 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 07:20:08,358 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08 WrapperNode
[2023-12-19 07:20:08,358 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 07:20:08,359 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 07:20:08,359 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 07:20:08,359 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 07:20:08,363 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,380 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,411 INFO  L138                Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 200
[2023-12-19 07:20:08,411 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 07:20:08,412 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 07:20:08,412 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 07:20:08,412 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 07:20:08,422 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,422 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,424 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,442 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 07:20:08,442 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,442 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,462 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,465 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,466 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,467 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,469 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 07:20:08,470 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 07:20:08,470 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 07:20:08,470 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 07:20:08,471 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (1/1) ...
[2023-12-19 07:20:08,483 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 07:20:08,491 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 07:20:08,501 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 07:20:08,524 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 07:20:08,542 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 07:20:08,542 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 07:20:08,543 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 07:20:08,543 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 07:20:08,543 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 07:20:08,543 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 07:20:08,606 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 07:20:08,607 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 07:20:08,877 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 07:20:08,912 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 07:20:08,912 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 07:20:08,912 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:20:08 BoogieIcfgContainer
[2023-12-19 07:20:08,912 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 07:20:08,914 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 07:20:08,914 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 07:20:08,916 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 07:20:08,916 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 07:20:08" (1/3) ...
[2023-12-19 07:20:08,917 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591c5f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 07:20:08, skipping insertion in model container
[2023-12-19 07:20:08,917 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 07:20:08" (2/3) ...
[2023-12-19 07:20:08,917 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@591c5f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 07:20:08, skipping insertion in model container
[2023-12-19 07:20:08,917 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 07:20:08" (3/3) ...
[2023-12-19 07:20:08,918 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-45.i
[2023-12-19 07:20:08,931 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 07:20:08,931 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 07:20:08,970 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 07:20:08,976 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;@7df1e0dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 07:20:08,977 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 07:20:08,982 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 82 states, 48 states have (on average 1.375) internal successors, (66), 49 states have internal predecessors, (66), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31)
[2023-12-19 07:20:08,996 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 195
[2023-12-19 07:20:08,996 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 07:20:08,997 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:20:08,998 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 07:20:09,002 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 07:20:09,003 INFO  L85        PathProgramCache]: Analyzing trace with hash 47498477, now seen corresponding path program 1 times
[2023-12-19 07:20:09,009 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 07:20:09,009 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741583081]
[2023-12-19 07:20:09,010 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 07:20:09,024 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 07:20:09,221 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 07:20:09,222 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514303489]
[2023-12-19 07:20:09,222 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 07:20:09,222 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 07:20:09,222 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 07:20:09,224 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 07:20:09,244 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 07:20:09,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 07:20:09,415 INFO  L262         TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-19 07:20:09,432 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 07:20:09,522 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2023-12-19 07:20:09,523 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 07:20:09,523 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 07:20:09,523 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741583081]
[2023-12-19 07:20:09,523 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 07:20:09,523 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514303489]
[2023-12-19 07:20:09,524 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514303489] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 07:20:09,524 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 07:20:09,524 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 07:20:09,525 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450853311]
[2023-12-19 07:20:09,528 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 07:20:09,531 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 07:20:09,531 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 07:20:09,554 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 07:20:09,555 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 07:20:09,556 INFO  L87              Difference]: Start difference. First operand  has 82 states, 48 states have (on average 1.375) internal successors, (66), 49 states have internal predecessors, (66), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand  has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-19 07:20:09,648 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 07:20:09,648 INFO  L93              Difference]: Finished difference Result 237 states and 436 transitions.
[2023-12-19 07:20:09,650 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 07:20:09,651 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 194
[2023-12-19 07:20:09,652 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 07:20:09,658 INFO  L225             Difference]: With dead ends: 237
[2023-12-19 07:20:09,658 INFO  L226             Difference]: Without dead ends: 156
[2023-12-19 07:20:09,660 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 192 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 07:20:09,662 INFO  L413           NwaCegarLoop]: 116 mSDtfsCounter, 112 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 07:20:09,663 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 225 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 07:20:09,673 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 156 states.
[2023-12-19 07:20:09,702 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154.
[2023-12-19 07:20:09,704 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 154 states, 89 states have (on average 1.247191011235955) internal successors, (111), 89 states have internal predecessors, (111), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62)
[2023-12-19 07:20:09,705 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 235 transitions.
[2023-12-19 07:20:09,706 INFO  L78                 Accepts]: Start accepts. Automaton has 154 states and 235 transitions. Word has length 194
[2023-12-19 07:20:09,707 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 07:20:09,707 INFO  L495      AbstractCegarLoop]: Abstraction has 154 states and 235 transitions.
[2023-12-19 07:20:09,707 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-19 07:20:09,707 INFO  L276                IsEmpty]: Start isEmpty. Operand 154 states and 235 transitions.
[2023-12-19 07:20:09,709 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2023-12-19 07:20:09,710 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 07:20:09,710 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:20:09,718 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 07:20:09,916 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 07:20:09,916 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 07:20:09,916 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 07:20:09,917 INFO  L85        PathProgramCache]: Analyzing trace with hash 1456602149, now seen corresponding path program 1 times
[2023-12-19 07:20:09,917 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 07:20:09,917 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985210600]
[2023-12-19 07:20:09,917 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 07:20:09,917 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 07:20:09,990 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 07:20:09,991 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033982579]
[2023-12-19 07:20:09,991 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 07:20:09,991 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 07:20:09,991 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 07:20:09,998 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 07:20:10,025 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 07:20:10,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 07:20:10,159 INFO  L262         TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-19 07:20:10,164 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 07:20:11,564 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked.
[2023-12-19 07:20:11,564 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 07:20:11,564 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 07:20:11,565 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985210600]
[2023-12-19 07:20:11,565 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 07:20:11,565 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033982579]
[2023-12-19 07:20:11,565 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033982579] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 07:20:11,565 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 07:20:11,565 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-19 07:20:11,565 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509359510]
[2023-12-19 07:20:11,565 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 07:20:11,566 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-19 07:20:11,566 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 07:20:11,567 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-19 07:20:11,567 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-19 07:20:11,567 INFO  L87              Difference]: Start difference. First operand 154 states and 235 transitions. Second operand  has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-19 07:20:11,900 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 07:20:11,900 INFO  L93              Difference]: Finished difference Result 372 states and 561 transitions.
[2023-12-19 07:20:11,900 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-19 07:20:11,901 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 195
[2023-12-19 07:20:11,901 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 07:20:11,903 INFO  L225             Difference]: With dead ends: 372
[2023-12-19 07:20:11,903 INFO  L226             Difference]: Without dead ends: 219
[2023-12-19 07:20:11,904 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-19 07:20:11,905 INFO  L413           NwaCegarLoop]: 129 mSDtfsCounter, 171 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-19 07:20:11,905 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 217 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-19 07:20:11,906 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 219 states.
[2023-12-19 07:20:11,947 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 215.
[2023-12-19 07:20:11,947 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 215 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 134 states have internal predecessors, (166), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78)
[2023-12-19 07:20:11,949 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 322 transitions.
[2023-12-19 07:20:11,949 INFO  L78                 Accepts]: Start accepts. Automaton has 215 states and 322 transitions. Word has length 195
[2023-12-19 07:20:11,950 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 07:20:11,950 INFO  L495      AbstractCegarLoop]: Abstraction has 215 states and 322 transitions.
[2023-12-19 07:20:11,950 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31)
[2023-12-19 07:20:11,950 INFO  L276                IsEmpty]: Start isEmpty. Operand 215 states and 322 transitions.
[2023-12-19 07:20:11,952 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2023-12-19 07:20:11,952 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 07:20:11,952 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:20:11,979 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 07:20:12,158 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 07:20:12,159 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 07:20:12,159 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 07:20:12,159 INFO  L85        PathProgramCache]: Analyzing trace with hash 714316059, now seen corresponding path program 1 times
[2023-12-19 07:20:12,160 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 07:20:12,160 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339217846]
[2023-12-19 07:20:12,160 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 07:20:12,161 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 07:20:12,208 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 07:20:12,208 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100398659]
[2023-12-19 07:20:12,209 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 07:20:12,209 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 07:20:12,209 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 07:20:12,212 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 07:20:12,218 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 07:20:12,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 07:20:12,338 INFO  L262         TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-19 07:20:12,341 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 07:20:12,462 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 954 proven. 48 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked.
[2023-12-19 07:20:12,462 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-19 07:20:12,633 INFO  L134       CoverageAnalysis]: Checked inductivity of 1860 backedges. 42 proven. 48 refuted. 0 times theorem prover too weak. 1770 trivial. 0 not checked.
[2023-12-19 07:20:12,633 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 07:20:12,633 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339217846]
[2023-12-19 07:20:12,633 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 07:20:12,633 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100398659]
[2023-12-19 07:20:12,634 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100398659] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-19 07:20:12,634 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-19 07:20:12,634 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2023-12-19 07:20:12,634 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310502346]
[2023-12-19 07:20:12,634 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-19 07:20:12,635 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-19 07:20:12,635 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 07:20:12,636 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-19 07:20:12,636 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2023-12-19 07:20:12,636 INFO  L87              Difference]: Start difference. First operand 215 states and 322 transitions. Second operand  has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)
[2023-12-19 07:20:12,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 07:20:12,835 INFO  L93              Difference]: Finished difference Result 342 states and 504 transitions.
[2023-12-19 07:20:12,835 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-19 07:20:12,835 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 195
[2023-12-19 07:20:12,836 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 07:20:12,837 INFO  L225             Difference]: With dead ends: 342
[2023-12-19 07:20:12,838 INFO  L226             Difference]: Without dead ends: 128
[2023-12-19 07:20:12,838 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 381 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210
[2023-12-19 07:20:12,839 INFO  L413           NwaCegarLoop]: 77 mSDtfsCounter, 126 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-19 07:20:12,839 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 167 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-19 07:20:12,840 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2023-12-19 07:20:12,851 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 114.
[2023-12-19 07:20:12,851 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 114 states, 71 states have (on average 1.1971830985915493) internal successors, (85), 72 states have internal predecessors, (85), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39)
[2023-12-19 07:20:12,852 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 163 transitions.
[2023-12-19 07:20:12,852 INFO  L78                 Accepts]: Start accepts. Automaton has 114 states and 163 transitions. Word has length 195
[2023-12-19 07:20:12,853 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 07:20:12,853 INFO  L495      AbstractCegarLoop]: Abstraction has 114 states and 163 transitions.
[2023-12-19 07:20:12,853 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)
[2023-12-19 07:20:12,853 INFO  L276                IsEmpty]: Start isEmpty. Operand 114 states and 163 transitions.
[2023-12-19 07:20:12,854 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 197
[2023-12-19 07:20:12,854 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 07:20:12,855 INFO  L195           NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:20:12,863 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 07:20:13,061 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 07:20:13,061 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 07:20:13,062 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 07:20:13,062 INFO  L85        PathProgramCache]: Analyzing trace with hash -2100372522, now seen corresponding path program 1 times
[2023-12-19 07:20:13,063 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 07:20:13,063 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70382838]
[2023-12-19 07:20:13,063 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 07:20:13,063 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 07:20:13,120 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 07:20:13,121 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157833952]
[2023-12-19 07:20:13,121 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 07:20:13,121 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 07:20:13,121 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 07:20:13,122 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 07:20:13,150 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 07:20:13,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 07:20:13,243 INFO  L262         TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 40 conjunts are in the unsatisfiable core
[2023-12-19 07:20:13,247 INFO  L285         TraceCheckSpWp]: Computing forward predicates...