/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-98.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-20 20:57:07,996 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-20 20:57:08,063 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-20 20:57:08,067 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-20 20:57:08,067 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-20 20:57:08,088 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-20 20:57:08,089 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-20 20:57:08,089 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-20 20:57:08,089 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-20 20:57:08,092 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-20 20:57:08,092 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-20 20:57:08,093 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-20 20:57:08,093 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-20 20:57:08,094 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-20 20:57:08,094 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-20 20:57:08,095 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-20 20:57:08,095 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-20 20:57:08,095 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-20 20:57:08,095 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-20 20:57:08,096 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-20 20:57:08,096 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-20 20:57:08,097 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-20 20:57:08,097 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-20 20:57:08,097 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-20 20:57:08,097 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-20 20:57:08,097 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-20 20:57:08,097 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-20 20:57:08,097 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-20 20:57:08,098 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-20 20:57:08,098 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-20 20:57:08,099 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-20 20:57:08,099 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-20 20:57:08,099 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 20:57:08,099 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-20 20:57:08,099 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-20 20:57:08,099 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-20 20:57:08,099 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-20 20:57:08,099 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-20 20:57:08,100 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-20 20:57:08,100 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-20 20:57:08,100 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-20 20:57:08,100 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-20 20:57:08,100 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-20 20:57:08,100 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-20 20:57:08,284 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-20 20:57:08,303 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-20 20:57:08,305 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-20 20:57:08,305 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-20 20:57:08,306 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-20 20:57:08,307 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-98.i
[2023-12-20 20:57:09,294 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-20 20:57:09,459 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-20 20:57:09,460 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-98.i
[2023-12-20 20:57:09,467 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0130b462d/296a108f742c4576ba9f7cfda8c823e3/FLAGafec6f17c
[2023-12-20 20:57:09,476 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0130b462d/296a108f742c4576ba9f7cfda8c823e3
[2023-12-20 20:57:09,478 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-20 20:57:09,479 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-20 20:57:09,481 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-20 20:57:09,482 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-20 20:57:09,489 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-20 20:57:09,489 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,490 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12410a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09, skipping insertion in model container
[2023-12-20 20:57:09,490 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,520 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-20 20:57:09,638 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-pe-co_file-98.i[919,932]
[2023-12-20 20:57:09,725 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 20:57:09,741 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-20 20:57:09,750 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-pe-co_file-98.i[919,932]
[2023-12-20 20:57:09,779 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 20:57:09,796 INFO  L206         MainTranslator]: Completed translation
[2023-12-20 20:57:09,797 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09 WrapperNode
[2023-12-20 20:57:09,797 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-20 20:57:09,798 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-20 20:57:09,798 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-20 20:57:09,798 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-20 20:57:09,804 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,812 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,841 INFO  L138                Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 221
[2023-12-20 20:57:09,842 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-20 20:57:09,842 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-20 20:57:09,842 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-20 20:57:09,843 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-20 20:57:09,859 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,859 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,863 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,878 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2023-12-20 20:57:09,882 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,882 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,890 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,892 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,894 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,912 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,916 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-20 20:57:09,916 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-20 20:57:09,916 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-20 20:57:09,917 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-20 20:57:09,917 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (1/1) ...
[2023-12-20 20:57:09,936 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 20:57:09,944 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 20:57:09,966 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-20 20:57:09,983 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-20 20:57:09,987 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-20 20:57:09,987 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-20 20:57:09,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-20 20:57:09,987 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-20 20:57:09,987 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-20 20:57:09,987 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-20 20:57:10,095 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-20 20:57:10,097 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-20 20:57:10,401 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-20 20:57:10,426 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-20 20:57:10,427 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-20 20:57:10,427 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 08:57:10 BoogieIcfgContainer
[2023-12-20 20:57:10,427 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-20 20:57:10,429 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-20 20:57:10,429 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-20 20:57:10,431 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-20 20:57:10,431 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 08:57:09" (1/3) ...
[2023-12-20 20:57:10,431 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c02cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 08:57:10, skipping insertion in model container
[2023-12-20 20:57:10,431 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 08:57:09" (2/3) ...
[2023-12-20 20:57:10,432 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c02cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 08:57:10, skipping insertion in model container
[2023-12-20 20:57:10,432 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 08:57:10" (3/3) ...
[2023-12-20 20:57:10,433 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-98.i
[2023-12-20 20:57:10,445 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-20 20:57:10,445 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-20 20:57:10,485 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-20 20:57:10,490 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;@268307b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-20 20:57:10,491 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-20 20:57:10,495 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 88 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 52 states have internal predecessors, (73), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-20 20:57:10,507 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2023-12-20 20:57:10,507 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 20:57:10,508 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 20:57:10,508 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 20:57:10,513 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 20:57:10,513 INFO  L85        PathProgramCache]: Analyzing trace with hash 1043089508, now seen corresponding path program 1 times
[2023-12-20 20:57:10,521 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 20:57:10,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848114291]
[2023-12-20 20:57:10,521 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:57:10,522 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 20:57:10,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 20:57:10,732 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 20:57:10,732 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848114291]
[2023-12-20 20:57:10,733 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-20 20:57:10,733 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846474224]
[2023-12-20 20:57:10,733 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:57:10,734 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 20:57:10,734 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 20:57:10,736 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 20:57:10,767 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-20 20:57:10,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 20:57:10,905 INFO  L262         TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-20 20:57:10,923 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 20:57:10,973 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked.
[2023-12-20 20:57:10,974 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 20:57:10,974 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [846474224] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 20:57:10,974 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 20:57:10,974 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 20:57:10,976 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153933153]
[2023-12-20 20:57:10,976 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 20:57:10,980 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-20 20:57:10,980 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 20:57:11,006 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-20 20:57:11,007 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 20:57:11,008 INFO  L87              Difference]: Start difference. First operand  has 88 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 52 states have internal predecessors, (73), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-20 20:57:11,060 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 20:57:11,060 INFO  L93              Difference]: Finished difference Result 173 states and 314 transitions.
[2023-12-20 20:57:11,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-20 20:57:11,063 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 209
[2023-12-20 20:57:11,063 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 20:57:11,070 INFO  L225             Difference]: With dead ends: 173
[2023-12-20 20:57:11,070 INFO  L226             Difference]: Without dead ends: 86
[2023-12-20 20:57:11,076 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 20:57:11,079 INFO  L413           NwaCegarLoop]: 132 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, 132 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 20:57:11,079 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 20:57:11,090 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2023-12-20 20:57:11,121 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86.
[2023-12-20 20:57:11,122 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 86 states, 50 states have (on average 1.34) internal successors, (67), 50 states have internal predecessors, (67), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-20 20:57:11,128 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 135 transitions.
[2023-12-20 20:57:11,129 INFO  L78                 Accepts]: Start accepts. Automaton has 86 states and 135 transitions. Word has length 209
[2023-12-20 20:57:11,130 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 20:57:11,130 INFO  L495      AbstractCegarLoop]: Abstraction has 86 states and 135 transitions.
[2023-12-20 20:57:11,130 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34)
[2023-12-20 20:57:11,130 INFO  L276                IsEmpty]: Start isEmpty. Operand 86 states and 135 transitions.
[2023-12-20 20:57:11,138 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2023-12-20 20:57:11,138 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 20:57:11,157 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 20:57:11,165 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-20 20:57:11,362 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-20 20:57:11,362 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 20:57:11,363 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 20:57:11,363 INFO  L85        PathProgramCache]: Analyzing trace with hash -259549532, now seen corresponding path program 1 times
[2023-12-20 20:57:11,363 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 20:57:11,364 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313391393]
[2023-12-20 20:57:11,364 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:57:11,364 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 20:57:11,443 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 20:57:11,443 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [775443149]
[2023-12-20 20:57:11,443 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:57:11,443 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 20:57:11,443 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 20:57:11,447 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 20:57:11,475 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-20 20:57:11,579 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 20:57:11,582 INFO  L262         TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-20 20:57:11,585 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 20:57:11,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-20 20:57:11,641 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 20:57:11,641 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 20:57:11,641 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313391393]
[2023-12-20 20:57:11,641 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 20:57:11,642 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775443149]
[2023-12-20 20:57:11,642 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [775443149] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 20:57:11,642 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 20:57:11,642 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-20 20:57:11,642 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084999034]
[2023-12-20 20:57:11,642 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 20:57:11,643 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 20:57:11,643 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 20:57:11,644 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 20:57:11,644 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 20:57:11,644 INFO  L87              Difference]: Start difference. First operand 86 states and 135 transitions. 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-20 20:57:11,682 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 20:57:11,683 INFO  L93              Difference]: Finished difference Result 171 states and 269 transitions.
[2023-12-20 20:57:11,683 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-20 20:57:11,683 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 209
[2023-12-20 20:57:11,684 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 20:57:11,685 INFO  L225             Difference]: With dead ends: 171
[2023-12-20 20:57:11,685 INFO  L226             Difference]: Without dead ends: 86
[2023-12-20 20:57:11,686 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 20:57:11,686 INFO  L413           NwaCegarLoop]: 120 mSDtfsCounter, 32 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 20:57:11,687 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 215 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 20:57:11,687 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2023-12-20 20:57:11,693 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86.
[2023-12-20 20:57:11,693 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 86 states, 50 states have (on average 1.3) internal successors, (65), 50 states have internal predecessors, (65), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34)
[2023-12-20 20:57:11,694 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 133 transitions.
[2023-12-20 20:57:11,694 INFO  L78                 Accepts]: Start accepts. Automaton has 86 states and 133 transitions. Word has length 209
[2023-12-20 20:57:11,695 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 20:57:11,695 INFO  L495      AbstractCegarLoop]: Abstraction has 86 states and 133 transitions.
[2023-12-20 20:57:11,695 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-20 20:57:11,695 INFO  L276                IsEmpty]: Start isEmpty. Operand 86 states and 133 transitions.
[2023-12-20 20:57:11,697 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2023-12-20 20:57:11,697 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 20:57:11,697 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 20:57:11,706 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-20 20:57:11,907 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-20 20:57:11,907 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 20:57:11,907 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 20:57:11,908 INFO  L85        PathProgramCache]: Analyzing trace with hash -1539413210, now seen corresponding path program 1 times
[2023-12-20 20:57:11,908 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 20:57:11,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893742303]
[2023-12-20 20:57:11,908 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:57:11,908 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 20:57:11,951 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 20:57:11,951 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725978468]
[2023-12-20 20:57:11,951 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:57:11,952 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 20:57:11,952 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 20:57:11,953 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 20:57:11,978 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-20 20:57:12,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 20:57:12,096 INFO  L262         TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-12-20 20:57:12,100 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 20:57:12,666 INFO  L134       CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked.
[2023-12-20 20:57:12,667 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 20:57:12,667 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 20:57:12,667 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893742303]
[2023-12-20 20:57:12,667 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 20:57:12,667 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725978468]
[2023-12-20 20:57:12,667 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725978468] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 20:57:12,667 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 20:57:12,667 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-20 20:57:12,667 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906536594]
[2023-12-20 20:57:12,668 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 20:57:12,668 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-20 20:57:12,668 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 20:57:12,669 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-20 20:57:12,669 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-20 20:57:12,669 INFO  L87              Difference]: Start difference. First operand 86 states and 133 transitions. Second operand  has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-20 20:57:13,696 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 20:57:13,696 INFO  L93              Difference]: Finished difference Result 345 states and 536 transitions.
[2023-12-20 20:57:13,696 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-12-20 20:57:13,697 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 209
[2023-12-20 20:57:13,697 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 20:57:13,699 INFO  L225             Difference]: With dead ends: 345
[2023-12-20 20:57:13,699 INFO  L226             Difference]: Without dead ends: 260
[2023-12-20 20:57:13,700 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2023-12-20 20:57:13,700 INFO  L413           NwaCegarLoop]: 215 mSDtfsCounter, 291 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-20 20:57:13,701 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 589 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-20 20:57:13,701 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 260 states.
[2023-12-20 20:57:13,770 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 167.
[2023-12-20 20:57:13,770 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 167 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 96 states have internal predecessors, (124), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68)
[2023-12-20 20:57:13,771 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 260 transitions.
[2023-12-20 20:57:13,772 INFO  L78                 Accepts]: Start accepts. Automaton has 167 states and 260 transitions. Word has length 209
[2023-12-20 20:57:13,772 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 20:57:13,772 INFO  L495      AbstractCegarLoop]: Abstraction has 167 states and 260 transitions.
[2023-12-20 20:57:13,772 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34)
[2023-12-20 20:57:13,772 INFO  L276                IsEmpty]: Start isEmpty. Operand 167 states and 260 transitions.
[2023-12-20 20:57:13,774 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 210
[2023-12-20 20:57:13,774 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 20:57:13,774 INFO  L195           NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 20:57:13,784 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2023-12-20 20:57:13,974 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 20:57:13,975 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 20:57:13,975 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 20:57:13,975 INFO  L85        PathProgramCache]: Analyzing trace with hash -1932440220, now seen corresponding path program 1 times
[2023-12-20 20:57:13,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 20:57:13,976 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983527138]
[2023-12-20 20:57:13,976 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:57:13,976 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 20:57:14,010 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 20:57:14,010 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365621975]
[2023-12-20 20:57:14,010 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 20:57:14,010 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 20:57:14,010 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 20:57:14,016 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 20:57:14,036 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-20 20:57:14,185 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 20:57:14,188 INFO  L262         TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 49 conjunts are in the unsatisfiable core
[2023-12-20 20:57:14,195 INFO  L285         TraceCheckSpWp]: Computing forward predicates...