/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_loopvsstraightlinecode_50-while_file-45.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-20 23:19:11,226 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-20 23:19:11,271 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 23:19:11,274 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-20 23:19:11,274 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-20 23:19:11,303 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-20 23:19:11,304 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-20 23:19:11,304 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-20 23:19:11,305 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-20 23:19:11,305 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-20 23:19:11,305 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-20 23:19:11,305 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-20 23:19:11,306 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-20 23:19:11,306 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-20 23:19:11,306 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-20 23:19:11,306 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-20 23:19:11,307 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-20 23:19:11,307 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-20 23:19:11,307 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-20 23:19:11,307 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-20 23:19:11,308 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-20 23:19:11,309 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-20 23:19:11,310 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-20 23:19:11,310 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-20 23:19:11,310 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-20 23:19:11,310 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-20 23:19:11,311 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-20 23:19:11,311 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-20 23:19:11,311 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-20 23:19:11,311 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-20 23:19:11,311 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-20 23:19:11,312 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-20 23:19:11,312 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 23:19:11,312 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-20 23:19:11,312 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-20 23:19:11,313 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-20 23:19:11,313 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-20 23:19:11,313 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-20 23:19:11,313 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-20 23:19:11,313 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-20 23:19:11,314 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-20 23:19:11,314 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-20 23:19:11,314 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-20 23:19:11,315 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-20 23:19:11,494 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-20 23:19:11,511 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-20 23:19:11,512 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-20 23:19:11,513 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-20 23:19:11,513 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-20 23:19:11,514 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-45.i
[2023-12-20 23:19:12,567 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-20 23:19:12,702 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-20 23:19:12,702 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-45.i
[2023-12-20 23:19:12,707 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0a0fb917/5de1cdb3476c4ee4a8bec11d827789eb/FLAG1d68d210c
[2023-12-20 23:19:12,727 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0a0fb917/5de1cdb3476c4ee4a8bec11d827789eb
[2023-12-20 23:19:12,729 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-20 23:19:12,731 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-20 23:19:12,731 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-20 23:19:12,731 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-20 23:19:12,736 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-20 23:19:12,737 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:19:12" (1/1) ...
[2023-12-20 23:19:12,738 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8578cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:12, skipping insertion in model container
[2023-12-20 23:19:12,738 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:19:12" (1/1) ...
[2023-12-20 23:19:12,768 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-20 23:19:12,875 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_loopvsstraightlinecode_50-while_file-45.i[915,928]
[2023-12-20 23:19:12,940 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 23:19:12,957 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-20 23:19:12,968 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_loopvsstraightlinecode_50-while_file-45.i[915,928]
[2023-12-20 23:19:12,998 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 23:19:13,013 INFO  L206         MainTranslator]: Completed translation
[2023-12-20 23:19:13,014 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13 WrapperNode
[2023-12-20 23:19:13,014 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-20 23:19:13,015 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-20 23:19:13,016 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-20 23:19:13,016 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-20 23:19:13,021 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,038 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,066 INFO  L138                Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 121
[2023-12-20 23:19:13,066 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-20 23:19:13,067 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-20 23:19:13,067 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-20 23:19:13,067 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-20 23:19:13,090 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,090 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,092 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,103 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 23:19:13,103 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,103 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,109 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,112 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,113 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,114 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,116 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-20 23:19:13,117 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-20 23:19:13,117 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-20 23:19:13,117 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-20 23:19:13,117 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (1/1) ...
[2023-12-20 23:19:13,122 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 23:19:13,143 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 23:19:13,185 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 23:19:13,215 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 23:19:13,231 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-20 23:19:13,231 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-20 23:19:13,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-20 23:19:13,232 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-20 23:19:13,232 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-20 23:19:13,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-20 23:19:13,281 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-20 23:19:13,283 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-20 23:19:13,481 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-20 23:19:13,526 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-20 23:19:13,527 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-20 23:19:13,527 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:19:13 BoogieIcfgContainer
[2023-12-20 23:19:13,527 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-20 23:19:13,529 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-20 23:19:13,529 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-20 23:19:13,531 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-20 23:19:13,531 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 11:19:12" (1/3) ...
[2023-12-20 23:19:13,531 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359f3462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:19:13, skipping insertion in model container
[2023-12-20 23:19:13,531 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:19:13" (2/3) ...
[2023-12-20 23:19:13,532 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359f3462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:19:13, skipping insertion in model container
[2023-12-20 23:19:13,532 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:19:13" (3/3) ...
[2023-12-20 23:19:13,532 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-45.i
[2023-12-20 23:19:13,543 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-20 23:19:13,544 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-20 23:19:13,605 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-20 23:19:13,610 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;@503858f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-20 23:19:13,610 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-20 23:19:13,618 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 51 states, 32 states have (on average 1.46875) internal successors, (47), 33 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-20 23:19:13,628 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2023-12-20 23:19:13,629 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 23:19:13,629 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:19:13,630 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 23:19:13,633 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 23:19:13,633 INFO  L85        PathProgramCache]: Analyzing trace with hash 1315104657, now seen corresponding path program 1 times
[2023-12-20 23:19:13,639 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 23:19:13,639 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881891632]
[2023-12-20 23:19:13,639 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 23:19:13,639 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 23:19:13,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 23:19:13,802 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 23:19:13,806 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881891632]
[2023-12-20 23:19:13,807 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-20 23:19:13,807 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511848175]
[2023-12-20 23:19:13,807 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 23:19:13,808 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 23:19:13,808 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 23:19:13,831 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 23:19:13,832 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 23:19:13,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 23:19:13,947 INFO  L262         TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-20 23:19:13,952 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 23:19:13,989 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked.
[2023-12-20 23:19:13,989 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 23:19:13,989 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [511848175] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 23:19:13,990 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 23:19:13,990 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 23:19:13,991 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119990204]
[2023-12-20 23:19:13,992 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 23:19:13,994 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-20 23:19:13,995 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 23:19:14,025 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-20 23:19:14,026 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 23:19:14,027 INFO  L87              Difference]: Start difference. First operand  has 51 states, 32 states have (on average 1.46875) internal successors, (47), 33 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2023-12-20 23:19:14,065 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 23:19:14,065 INFO  L93              Difference]: Finished difference Result 99 states and 172 transitions.
[2023-12-20 23:19:14,066 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-20 23:19:14,067 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103
[2023-12-20 23:19:14,068 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 23:19:14,073 INFO  L225             Difference]: With dead ends: 99
[2023-12-20 23:19:14,073 INFO  L226             Difference]: Without dead ends: 49
[2023-12-20 23:19:14,076 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 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 23:19:14,079 INFO  L413           NwaCegarLoop]: 71 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, 71 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 23:19:14,080 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 23:19:14,091 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2023-12-20 23:19:14,103 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49.
[2023-12-20 23:19:14,104 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-20 23:19:14,105 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 74 transitions.
[2023-12-20 23:19:14,105 INFO  L78                 Accepts]: Start accepts. Automaton has 49 states and 74 transitions. Word has length 103
[2023-12-20 23:19:14,106 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 23:19:14,106 INFO  L495      AbstractCegarLoop]: Abstraction has 49 states and 74 transitions.
[2023-12-20 23:19:14,106 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16)
[2023-12-20 23:19:14,106 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states and 74 transitions.
[2023-12-20 23:19:14,108 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 104
[2023-12-20 23:19:14,108 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 23:19:14,109 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:19:14,116 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 23:19:14,315 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 23:19:14,316 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 23:19:14,316 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 23:19:14,316 INFO  L85        PathProgramCache]: Analyzing trace with hash 1745471377, now seen corresponding path program 1 times
[2023-12-20 23:19:14,317 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 23:19:14,317 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780552085]
[2023-12-20 23:19:14,317 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 23:19:14,317 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 23:19:14,362 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 23:19:14,362 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686892201]
[2023-12-20 23:19:14,362 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 23:19:14,363 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 23:19:14,363 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 23:19:14,366 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 23:19:14,370 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 23:19:14,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 23:19:14,450 INFO  L262         TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-12-20 23:19:14,469 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 23:19:14,518 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-20 23:19:14,518 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 23:19:14,518 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 23:19:14,518 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780552085]
[2023-12-20 23:19:14,518 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 23:19:14,518 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686892201]
[2023-12-20 23:19:14,519 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686892201] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 23:19:14,519 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 23:19:14,519 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-20 23:19:14,519 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794383604]
[2023-12-20 23:19:14,519 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 23:19:14,521 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 23:19:14,521 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 23:19:14,522 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 23:19:14,522 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 23:19:14,522 INFO  L87              Difference]: Start difference. First operand 49 states and 74 transitions. Second operand  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-20 23:19:14,580 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 23:19:14,580 INFO  L93              Difference]: Finished difference Result 142 states and 214 transitions.
[2023-12-20 23:19:14,581 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-20 23:19:14,581 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103
[2023-12-20 23:19:14,583 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 23:19:14,585 INFO  L225             Difference]: With dead ends: 142
[2023-12-20 23:19:14,585 INFO  L226             Difference]: Without dead ends: 94
[2023-12-20 23:19:14,586 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 23:19:14,587 INFO  L413           NwaCegarLoop]: 78 mSDtfsCounter, 63 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 23:19:14,587 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 138 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 23:19:14,587 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2023-12-20 23:19:14,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92.
[2023-12-20 23:19:14,603 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 92 states, 57 states have (on average 1.280701754385965) internal successors, (73), 57 states have internal predecessors, (73), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32)
[2023-12-20 23:19:14,606 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 137 transitions.
[2023-12-20 23:19:14,607 INFO  L78                 Accepts]: Start accepts. Automaton has 92 states and 137 transitions. Word has length 103
[2023-12-20 23:19:14,608 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 23:19:14,608 INFO  L495      AbstractCegarLoop]: Abstraction has 92 states and 137 transitions.
[2023-12-20 23:19:14,608 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-20 23:19:14,609 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions.
[2023-12-20 23:19:14,610 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2023-12-20 23:19:14,610 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 23:19:14,610 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:19:14,619 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 23:19:14,815 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 23:19:14,815 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 23:19:14,816 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 23:19:14,816 INFO  L85        PathProgramCache]: Analyzing trace with hash 1225927247, now seen corresponding path program 1 times
[2023-12-20 23:19:14,816 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 23:19:14,816 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383081125]
[2023-12-20 23:19:14,816 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 23:19:14,816 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 23:19:14,859 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 23:19:14,860 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1058960832]
[2023-12-20 23:19:14,861 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 23:19:14,863 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 23:19:14,863 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 23:19:14,875 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 23:19:14,879 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 23:19:14,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 23:19:14,980 INFO  L262         TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-20 23:19:14,993 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 23:19:15,045 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 99 proven. 3 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2023-12-20 23:19:15,045 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-12-20 23:19:15,196 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked.
[2023-12-20 23:19:15,197 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 23:19:15,197 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383081125]
[2023-12-20 23:19:15,197 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 23:19:15,197 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058960832]
[2023-12-20 23:19:15,197 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058960832] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-20 23:19:15,197 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-20 23:19:15,197 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2023-12-20 23:19:15,197 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869764946]
[2023-12-20 23:19:15,197 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-20 23:19:15,198 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-20 23:19:15,199 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 23:19:15,199 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-20 23:19:15,200 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2023-12-20 23:19:15,200 INFO  L87              Difference]: Start difference. First operand 92 states and 137 transitions. Second operand  has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2023-12-20 23:19:15,403 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 23:19:15,403 INFO  L93              Difference]: Finished difference Result 150 states and 218 transitions.
[2023-12-20 23:19:15,404 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-12-20 23:19:15,404 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 104
[2023-12-20 23:19:15,405 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 23:19:15,407 INFO  L225             Difference]: With dead ends: 150
[2023-12-20 23:19:15,407 INFO  L226             Difference]: Without dead ends: 59
[2023-12-20 23:19:15,411 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210
[2023-12-20 23:19:15,413 INFO  L413           NwaCegarLoop]: 44 mSDtfsCounter, 111 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-20 23:19:15,416 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 98 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-20 23:19:15,416 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2023-12-20 23:19:15,422 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 52.
[2023-12-20 23:19:15,423 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16)
[2023-12-20 23:19:15,423 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions.
[2023-12-20 23:19:15,423 INFO  L78                 Accepts]: Start accepts. Automaton has 52 states and 72 transitions. Word has length 104
[2023-12-20 23:19:15,424 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 23:19:15,427 INFO  L495      AbstractCegarLoop]: Abstraction has 52 states and 72 transitions.
[2023-12-20 23:19:15,427 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)
[2023-12-20 23:19:15,428 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions.
[2023-12-20 23:19:15,432 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2023-12-20 23:19:15,432 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 23:19:15,432 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:19:15,437 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-20 23:19:15,637 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 23:19:15,640 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 23:19:15,640 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 23:19:15,640 INFO  L85        PathProgramCache]: Analyzing trace with hash -1739947945, now seen corresponding path program 1 times
[2023-12-20 23:19:15,640 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 23:19:15,640 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142617994]
[2023-12-20 23:19:15,640 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 23:19:15,641 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 23:19:15,661 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 23:19:15,661 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1178090383]
[2023-12-20 23:19:15,662 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 23:19:15,662 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 23:19:15,662 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 23:19:15,681 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 23:19:15,704 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 23:19:15,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 23:19:15,753 INFO  L262         TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-20 23:19:15,755 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-20 23:19:16,873 INFO  L134       CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked.
[2023-12-20 23:19:16,874 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-20 23:19:16,874 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 23:19:16,875 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142617994]
[2023-12-20 23:19:16,875 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-20 23:19:16,875 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178090383]
[2023-12-20 23:19:16,876 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178090383] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 23:19:16,876 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 23:19:16,876 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-20 23:19:16,876 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919562615]
[2023-12-20 23:19:16,876 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 23:19:16,877 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-20 23:19:16,878 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 23:19:16,878 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-20 23:19:16,879 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-20 23:19:16,879 INFO  L87              Difference]: Start difference. First operand 52 states and 72 transitions. Second operand  has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-20 23:19:17,137 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 23:19:17,138 INFO  L93              Difference]: Finished difference Result 137 states and 189 transitions.
[2023-12-20 23:19:17,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-20 23:19:17,138 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104
[2023-12-20 23:19:17,139 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 23:19:17,141 INFO  L225             Difference]: With dead ends: 137
[2023-12-20 23:19:17,141 INFO  L226             Difference]: Without dead ends: 86
[2023-12-20 23:19:17,142 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-20 23:19:17,145 INFO  L413           NwaCegarLoop]: 78 mSDtfsCounter, 108 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-20 23:19:17,146 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 124 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-20 23:19:17,147 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2023-12-20 23:19:17,165 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83.
[2023-12-20 23:19:17,166 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83 states, 55 states have (on average 1.2) internal successors, (66), 56 states have internal predecessors, (66), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24)
[2023-12-20 23:19:17,166 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 114 transitions.
[2023-12-20 23:19:17,167 INFO  L78                 Accepts]: Start accepts. Automaton has 83 states and 114 transitions. Word has length 104
[2023-12-20 23:19:17,167 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 23:19:17,167 INFO  L495      AbstractCegarLoop]: Abstraction has 83 states and 114 transitions.
[2023-12-20 23:19:17,167 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16)
[2023-12-20 23:19:17,167 INFO  L276                IsEmpty]: Start isEmpty. Operand 83 states and 114 transitions.
[2023-12-20 23:19:17,171 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 106
[2023-12-20 23:19:17,171 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 23:19:17,171 INFO  L195           NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:19:17,179 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-20 23:19:17,376 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 23:19:17,376 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 23:19:17,377 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 23:19:17,377 INFO  L85        PathProgramCache]: Analyzing trace with hash 1886654522, now seen corresponding path program 1 times
[2023-12-20 23:19:17,377 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 23:19:17,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807795963]
[2023-12-20 23:19:17,377 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 23:19:17,397 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 23:19:17,425 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-20 23:19:17,425 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023675992]
[2023-12-20 23:19:17,425 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 23:19:17,426 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-20 23:19:17,426 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 23:19:17,449 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-20 23:19:17,524 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-20 23:19:17,561 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 23:19:17,563 INFO  L262         TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 46 conjunts are in the unsatisfiable core
[2023-12-20 23:19:17,569 INFO  L285         TraceCheckSpWp]: Computing forward predicates...