/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_codestructure_steplocals_file-95.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 06:05:14,885 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 06:05:14,954 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 06:05:14,958 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 06:05:14,959 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 06:05:14,986 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 06:05:14,987 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 06:05:14,988 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 06:05:14,988 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 06:05:14,991 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 06:05:14,991 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 06:05:14,992 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 06:05:14,992 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 06:05:14,993 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 06:05:14,993 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 06:05:14,994 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 06:05:14,994 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 06:05:14,994 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 06:05:14,994 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 06:05:14,994 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 06:05:14,994 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 06:05:14,995 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 06:05:14,995 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 06:05:14,995 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 06:05:14,995 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 06:05:14,996 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 06:05:14,996 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 06:05:14,996 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 06:05:14,997 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 06:05:14,997 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 06:05:14,997 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 06:05:14,998 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 06:05:14,998 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 06:05:14,998 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 06:05:14,998 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 06:05:14,998 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 06:05:14,998 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 06:05:14,998 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 06:05:14,999 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 06:05:14,999 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 06:05:14,999 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 06:05:14,999 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 06:05:14,999 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 06:05:14,999 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 06:05:15,200 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 06:05:15,220 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 06:05:15,222 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 06:05:15,223 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 06:05:15,224 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 06:05:15,225 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_steplocals_file-95.i
[2023-12-19 06:05:16,361 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 06:05:16,548 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 06:05:16,549 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_codestructure_steplocals_file-95.i
[2023-12-19 06:05:16,555 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffcdf8cfa/8cd8f4d9b8654fe58aee4845a892c97e/FLAG576fcdd76
[2023-12-19 06:05:16,564 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffcdf8cfa/8cd8f4d9b8654fe58aee4845a892c97e
[2023-12-19 06:05:16,566 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 06:05:16,567 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 06:05:16,567 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 06:05:16,568 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 06:05:16,572 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 06:05:16,573 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,574 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7274d3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16, skipping insertion in model container
[2023-12-19 06:05:16,574 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,601 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 06:05:16,722 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_codestructure_steplocals_file-95.i[917,930]
[2023-12-19 06:05:16,772 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 06:05:16,781 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 06:05:16,789 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_codestructure_steplocals_file-95.i[917,930]
[2023-12-19 06:05:16,809 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 06:05:16,820 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 06:05:16,821 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16 WrapperNode
[2023-12-19 06:05:16,821 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 06:05:16,822 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 06:05:16,822 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 06:05:16,822 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 06:05:16,827 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,836 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,880 INFO  L138                Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 150
[2023-12-19 06:05:16,880 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 06:05:16,881 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 06:05:16,881 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 06:05:16,881 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 06:05:16,890 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,890 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,893 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,914 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 06:05:16,914 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,915 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,922 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,926 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,940 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,942 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,945 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 06:05:16,946 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 06:05:16,946 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 06:05:16,946 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 06:05:16,947 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (1/1) ...
[2023-12-19 06:05:16,952 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 06:05:16,963 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:05:16,986 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 06:05:17,012 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 06:05:17,019 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 06:05:17,019 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 06:05:17,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 06:05:17,020 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 06:05:17,020 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 06:05:17,020 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 06:05:17,102 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 06:05:17,106 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 06:05:17,347 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 06:05:17,372 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 06:05:17,372 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 06:05:17,373 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:05:17 BoogieIcfgContainer
[2023-12-19 06:05:17,373 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 06:05:17,374 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 06:05:17,374 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 06:05:17,377 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 06:05:17,377 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 06:05:16" (1/3) ...
[2023-12-19 06:05:17,377 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1101a162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 06:05:17, skipping insertion in model container
[2023-12-19 06:05:17,377 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:05:16" (2/3) ...
[2023-12-19 06:05:17,377 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1101a162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 06:05:17, skipping insertion in model container
[2023-12-19 06:05:17,378 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:05:17" (3/3) ...
[2023-12-19 06:05:17,378 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-95.i
[2023-12-19 06:05:17,390 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 06:05:17,390 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 06:05:17,420 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 06:05:17,424 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;@484ad2fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 06:05:17,424 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 06:05:17,427 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 58 states, 40 states have (on average 1.55) internal successors, (62), 41 states have internal predecessors, (62), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2023-12-19 06:05:17,450 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2023-12-19 06:05:17,450 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:05:17,451 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:17,451 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:05:17,455 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:05:17,456 INFO  L85        PathProgramCache]: Analyzing trace with hash 287679366, now seen corresponding path program 1 times
[2023-12-19 06:05:17,462 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:05:17,462 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702351308]
[2023-12-19 06:05:17,462 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:05:17,462 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:05:17,569 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:05:17,613 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:05:17,613 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702351308]
[2023-12-19 06:05:17,614 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-19 06:05:17,614 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007441624]
[2023-12-19 06:05:17,614 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:05:17,614 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:05:17,614 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:05:17,618 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 06:05:17,640 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 06:05:17,739 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:05:17,743 INFO  L262         TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-19 06:05:17,755 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:05:17,797 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2023-12-19 06:05:17,797 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 06:05:17,798 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007441624] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 06:05:17,798 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 06:05:17,798 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-19 06:05:17,800 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044703356]
[2023-12-19 06:05:17,800 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 06:05:17,803 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-19 06:05:17,803 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:05:17,827 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-19 06:05:17,828 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 06:05:17,830 INFO  L87              Difference]: Start difference. First operand  has 58 states, 40 states have (on average 1.55) internal successors, (62), 41 states have internal predecessors, (62), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-19 06:05:17,864 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:05:17,864 INFO  L93              Difference]: Finished difference Result 112 states and 195 transitions.
[2023-12-19 06:05:17,865 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-19 06:05:17,866 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101
[2023-12-19 06:05:17,867 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:05:17,873 INFO  L225             Difference]: With dead ends: 112
[2023-12-19 06:05:17,873 INFO  L226             Difference]: Without dead ends: 55
[2023-12-19 06:05:17,876 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 06:05:17,879 INFO  L413           NwaCegarLoop]: 81 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, 81 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 06:05:17,880 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 06:05:17,891 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2023-12-19 06:05:17,908 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2023-12-19 06:05:17,910 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15)
[2023-12-19 06:05:17,914 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 84 transitions.
[2023-12-19 06:05:17,915 INFO  L78                 Accepts]: Start accepts. Automaton has 55 states and 84 transitions. Word has length 101
[2023-12-19 06:05:17,915 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:05:17,915 INFO  L495      AbstractCegarLoop]: Abstraction has 55 states and 84 transitions.
[2023-12-19 06:05:17,916 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15)
[2023-12-19 06:05:17,916 INFO  L276                IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions.
[2023-12-19 06:05:17,920 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2023-12-19 06:05:17,920 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:05:17,921 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:17,926 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-19 06:05:18,126 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 06:05:18,127 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:05:18,128 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:05:18,128 INFO  L85        PathProgramCache]: Analyzing trace with hash 781846668, now seen corresponding path program 1 times
[2023-12-19 06:05:18,128 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:05:18,128 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084616558]
[2023-12-19 06:05:18,128 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:05:18,128 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:05:18,173 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:05:18,173 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073331002]
[2023-12-19 06:05:18,174 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:05:18,174 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:05:18,174 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:05:18,175 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 06:05:18,182 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 06:05:18,268 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:05:18,270 INFO  L262         TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-19 06:05:18,280 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:05:18,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 182 proven. 30 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked.
[2023-12-19 06:05:18,456 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-19 06:05:18,625 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2023-12-19 06:05:18,625 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:05:18,625 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084616558]
[2023-12-19 06:05:18,626 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:05:18,626 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073331002]
[2023-12-19 06:05:18,626 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073331002] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-19 06:05:18,626 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-19 06:05:18,626 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2023-12-19 06:05:18,627 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117273480]
[2023-12-19 06:05:18,627 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-19 06:05:18,629 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-19 06:05:18,629 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:05:18,629 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-19 06:05:18,630 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132
[2023-12-19 06:05:18,630 INFO  L87              Difference]: Start difference. First operand 55 states and 84 transitions. Second operand  has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26)
[2023-12-19 06:05:19,099 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:05:19,100 INFO  L93              Difference]: Finished difference Result 208 states and 299 transitions.
[2023-12-19 06:05:19,100 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2023-12-19 06:05:19,100 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 101
[2023-12-19 06:05:19,101 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:05:19,102 INFO  L225             Difference]: With dead ends: 208
[2023-12-19 06:05:19,102 INFO  L226             Difference]: Without dead ends: 154
[2023-12-19 06:05:19,103 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=245, Invalid=567, Unknown=0, NotChecked=0, Total=812
[2023-12-19 06:05:19,104 INFO  L413           NwaCegarLoop]: 79 mSDtfsCounter, 308 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-19 06:05:19,104 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 351 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-19 06:05:19,105 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 154 states.
[2023-12-19 06:05:19,116 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 89.
[2023-12-19 06:05:19,116 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 89 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 69 states have internal predecessors, (95), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-19 06:05:19,118 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 129 transitions.
[2023-12-19 06:05:19,118 INFO  L78                 Accepts]: Start accepts. Automaton has 89 states and 129 transitions. Word has length 101
[2023-12-19 06:05:19,119 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:05:19,119 INFO  L495      AbstractCegarLoop]: Abstraction has 89 states and 129 transitions.
[2023-12-19 06:05:19,119 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26)
[2023-12-19 06:05:19,119 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 129 transitions.
[2023-12-19 06:05:19,120 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2023-12-19 06:05:19,120 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:05:19,121 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:05:19,130 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 06:05:19,327 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 06:05:19,328 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:05:19,328 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:05:19,328 INFO  L85        PathProgramCache]: Analyzing trace with hash -1314879092, now seen corresponding path program 1 times
[2023-12-19 06:05:19,328 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:05:19,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412929753]
[2023-12-19 06:05:19,329 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:05:19,329 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:05:19,354 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:05:19,354 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323376589]
[2023-12-19 06:05:19,355 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:05:19,355 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:05:19,355 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:05:19,359 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 06:05:19,371 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 06:05:19,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:05:19,472 INFO  L262         TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-19 06:05:19,475 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 06:13:47,923 INFO  L134       CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2023-12-19 06:13:47,923 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 06:13:47,923 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 06:13:47,923 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412929753]
[2023-12-19 06:13:47,923 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 06:13:47,924 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323376589]
[2023-12-19 06:13:47,924 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323376589] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 06:13:47,924 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 06:13:47,924 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-19 06:13:47,924 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254804167]
[2023-12-19 06:13:47,924 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 06:13:47,925 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-19 06:13:47,925 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 06:13:47,925 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-19 06:13:47,926 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2023-12-19 06:13:47,926 INFO  L87              Difference]: Start difference. First operand 89 states and 129 transitions. Second operand  has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2023-12-19 06:13:48,229 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 06:13:48,229 INFO  L93              Difference]: Finished difference Result 326 states and 463 transitions.
[2023-12-19 06:13:48,230 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2023-12-19 06:13:48,230 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 101
[2023-12-19 06:13:48,230 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 06:13:48,232 INFO  L225             Difference]: With dead ends: 326
[2023-12-19 06:13:48,233 INFO  L226             Difference]: Without dead ends: 238
[2023-12-19 06:13:48,237 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132
[2023-12-19 06:13:48,237 INFO  L413           NwaCegarLoop]: 89 mSDtfsCounter, 220 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-19 06:13:48,238 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 291 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-19 06:13:48,243 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 238 states.
[2023-12-19 06:13:48,254 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 129.
[2023-12-19 06:13:48,255 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 129 states, 108 states have (on average 1.4444444444444444) internal successors, (156), 109 states have internal predecessors, (156), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-19 06:13:48,256 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 190 transitions.
[2023-12-19 06:13:48,256 INFO  L78                 Accepts]: Start accepts. Automaton has 129 states and 190 transitions. Word has length 101
[2023-12-19 06:13:48,256 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 06:13:48,256 INFO  L495      AbstractCegarLoop]: Abstraction has 129 states and 190 transitions.
[2023-12-19 06:13:48,256 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)
[2023-12-19 06:13:48,257 INFO  L276                IsEmpty]: Start isEmpty. Operand 129 states and 190 transitions.
[2023-12-19 06:13:48,258 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 102
[2023-12-19 06:13:48,258 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 06:13:48,258 INFO  L195           NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:13:48,271 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 06:13:48,464 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 06:13:48,464 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 06:13:48,465 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 06:13:48,465 INFO  L85        PathProgramCache]: Analyzing trace with hash -1901685106, now seen corresponding path program 1 times
[2023-12-19 06:13:48,465 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 06:13:48,465 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238056708]
[2023-12-19 06:13:48,465 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:13:48,465 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 06:13:48,486 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 06:13:48,487 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144781912]
[2023-12-19 06:13:48,487 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 06:13:48,487 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 06:13:48,487 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 06:13:48,488 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 06:13:48,491 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 06:13:48,637 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 06:13:48,639 INFO  L262         TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-19 06:13:48,642 INFO  L285         TraceCheckSpWp]: Computing forward predicates...