/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-98.i


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-19 08:07:12,731 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-19 08:07:12,782 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 08:07:12,786 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-19 08:07:12,786 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-19 08:07:12,801 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-19 08:07:12,802 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-19 08:07:12,802 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-19 08:07:12,802 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-19 08:07:12,803 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-19 08:07:12,803 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-19 08:07:12,803 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-19 08:07:12,803 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-19 08:07:12,804 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-19 08:07:12,804 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-19 08:07:12,804 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-19 08:07:12,805 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-19 08:07:12,805 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-19 08:07:12,805 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-19 08:07:12,805 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-19 08:07:12,806 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-19 08:07:12,807 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-19 08:07:12,807 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-19 08:07:12,808 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-19 08:07:12,811 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-19 08:07:12,811 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-19 08:07:12,811 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-19 08:07:12,811 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-19 08:07:12,811 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-19 08:07:12,812 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-19 08:07:12,812 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-19 08:07:12,812 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-19 08:07:12,812 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 08:07:12,812 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-19 08:07:12,813 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-19 08:07:12,813 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-19 08:07:12,813 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-19 08:07:12,813 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-19 08:07:12,813 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-19 08:07:12,813 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-19 08:07:12,814 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-19 08:07:12,815 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-19 08:07:12,815 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-19 08:07:12,815 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-19 08:07:12,985 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-19 08:07:13,009 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-19 08:07:13,011 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-19 08:07:13,011 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-19 08:07:13,012 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-19 08:07:13,012 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-98.i
[2023-12-19 08:07:14,196 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-19 08:07:14,351 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-19 08:07:14,352 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-98.i
[2023-12-19 08:07:14,358 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bbbf4905/98dd3ff8109144e08189ceae39b85bcb/FLAGbb9ce9ec3
[2023-12-19 08:07:14,369 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bbbf4905/98dd3ff8109144e08189ceae39b85bcb
[2023-12-19 08:07:14,370 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-19 08:07:14,371 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-19 08:07:14,372 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-19 08:07:14,372 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-19 08:07:14,376 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-19 08:07:14,376 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,377 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499fc68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14, skipping insertion in model container
[2023-12-19 08:07:14,377 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,408 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-19 08:07:14,512 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-98.i[915,928]
[2023-12-19 08:07:14,580 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 08:07:14,591 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-19 08:07:14,599 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-98.i[915,928]
[2023-12-19 08:07:14,624 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-19 08:07:14,641 INFO  L206         MainTranslator]: Completed translation
[2023-12-19 08:07:14,641 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14 WrapperNode
[2023-12-19 08:07:14,641 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-19 08:07:14,642 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-19 08:07:14,642 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-19 08:07:14,642 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-19 08:07:14,647 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,655 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,690 INFO  L138                Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 269
[2023-12-19 08:07:14,691 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-19 08:07:14,691 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-19 08:07:14,691 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-19 08:07:14,691 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-19 08:07:14,699 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,699 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,702 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,715 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 08:07:14,715 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,715 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,724 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,727 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,730 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,731 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,735 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-19 08:07:14,735 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-19 08:07:14,735 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-19 08:07:14,736 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-19 08:07:14,736 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (1/1) ...
[2023-12-19 08:07:14,740 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-19 08:07:14,749 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:07:14,760 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 08:07:14,776 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 08:07:14,795 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-19 08:07:14,795 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-19 08:07:14,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-19 08:07:14,796 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-19 08:07:14,796 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-19 08:07:14,796 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-19 08:07:14,888 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-19 08:07:14,891 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-19 08:07:15,211 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-19 08:07:15,235 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-19 08:07:15,236 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-19 08:07:15,236 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 08:07:15 BoogieIcfgContainer
[2023-12-19 08:07:15,236 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-19 08:07:15,237 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-19 08:07:15,238 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-19 08:07:15,240 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-19 08:07:15,240 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 08:07:14" (1/3) ...
[2023-12-19 08:07:15,240 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 08:07:15, skipping insertion in model container
[2023-12-19 08:07:15,240 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 08:07:14" (2/3) ...
[2023-12-19 08:07:15,241 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 08:07:15, skipping insertion in model container
[2023-12-19 08:07:15,241 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 08:07:15" (3/3) ...
[2023-12-19 08:07:15,241 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-98.i
[2023-12-19 08:07:15,253 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-19 08:07:15,253 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-19 08:07:15,340 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-19 08:07:15,346 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;@64e16388, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-19 08:07:15,347 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-19 08:07:15,350 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 108 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 64 states have internal predecessors, (93), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2023-12-19 08:07:15,363 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2023-12-19 08:07:15,363 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 08:07:15,363 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:15,364 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 08:07:15,367 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 08:07:15,368 INFO  L85        PathProgramCache]: Analyzing trace with hash -1527775642, now seen corresponding path program 1 times
[2023-12-19 08:07:15,375 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 08:07:15,375 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701559728]
[2023-12-19 08:07:15,375 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:07:15,376 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 08:07:15,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:07:15,609 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 08:07:15,609 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701559728]
[2023-12-19 08:07:15,609 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-19 08:07:15,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762186367]
[2023-12-19 08:07:15,610 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:07:15,610 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:07:15,610 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:07:15,612 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 08:07:15,616 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 08:07:15,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:07:15,769 INFO  L262         TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-19 08:07:15,777 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 08:07:15,840 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked.
[2023-12-19 08:07:15,840 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 08:07:15,840 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [762186367] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 08:07:15,840 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 08:07:15,841 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-19 08:07:15,842 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662418567]
[2023-12-19 08:07:15,843 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 08:07:15,847 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-19 08:07:15,847 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 08:07:15,873 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-19 08:07:15,873 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-19 08:07:15,875 INFO  L87              Difference]: Start difference. First operand  has 108 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 64 states have internal predecessors, (93), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42)
[2023-12-19 08:07:15,912 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 08:07:15,912 INFO  L93              Difference]: Finished difference Result 213 states and 394 transitions.
[2023-12-19 08:07:15,913 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-19 08:07:15,914 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) Word has length 257
[2023-12-19 08:07:15,915 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 08:07:15,920 INFO  L225             Difference]: With dead ends: 213
[2023-12-19 08:07:15,920 INFO  L226             Difference]: Without dead ends: 106
[2023-12-19 08:07:15,923 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 256 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 08:07:15,925 INFO  L413           NwaCegarLoop]: 169 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, 169 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 08:07:15,926 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 169 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 08:07:15,937 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2023-12-19 08:07:15,965 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106.
[2023-12-19 08:07:15,966 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 106 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 62 states have internal predecessors, (88), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2023-12-19 08:07:15,968 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 172 transitions.
[2023-12-19 08:07:15,969 INFO  L78                 Accepts]: Start accepts. Automaton has 106 states and 172 transitions. Word has length 257
[2023-12-19 08:07:15,969 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 08:07:15,969 INFO  L495      AbstractCegarLoop]: Abstraction has 106 states and 172 transitions.
[2023-12-19 08:07:15,970 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42)
[2023-12-19 08:07:15,970 INFO  L276                IsEmpty]: Start isEmpty. Operand 106 states and 172 transitions.
[2023-12-19 08:07:15,973 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2023-12-19 08:07:15,973 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 08:07:15,974 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:15,982 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 08:07:16,178 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 08:07:16,178 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 08:07:16,178 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 08:07:16,178 INFO  L85        PathProgramCache]: Analyzing trace with hash -40652634, now seen corresponding path program 1 times
[2023-12-19 08:07:16,179 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 08:07:16,179 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989983884]
[2023-12-19 08:07:16,179 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:07:16,179 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 08:07:16,226 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 08:07:16,226 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1709047745]
[2023-12-19 08:07:16,226 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:07:16,226 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:07:16,227 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:07:16,233 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 08:07:16,260 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 08:07:16,384 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:07:16,386 INFO  L262         TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-19 08:07:16,394 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 08:07:16,426 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2023-12-19 08:07:16,426 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 08:07:16,427 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 08:07:16,427 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989983884]
[2023-12-19 08:07:16,427 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 08:07:16,427 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709047745]
[2023-12-19 08:07:16,427 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709047745] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 08:07:16,427 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 08:07:16,427 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-12-19 08:07:16,428 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870885099]
[2023-12-19 08:07:16,428 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 08:07:16,429 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-19 08:07:16,429 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 08:07:16,429 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-19 08:07:16,429 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 08:07:16,430 INFO  L87              Difference]: Start difference. First operand 106 states and 172 transitions. Second operand  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-19 08:07:16,471 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 08:07:16,472 INFO  L93              Difference]: Finished difference Result 212 states and 345 transitions.
[2023-12-19 08:07:16,476 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-19 08:07:16,477 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 257
[2023-12-19 08:07:16,478 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 08:07:16,479 INFO  L225             Difference]: With dead ends: 212
[2023-12-19 08:07:16,479 INFO  L226             Difference]: Without dead ends: 107
[2023-12-19 08:07:16,480 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-19 08:07:16,483 INFO  L413           NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-19 08:07:16,484 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-19 08:07:16,485 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 107 states.
[2023-12-19 08:07:16,499 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107.
[2023-12-19 08:07:16,500 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 107 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 63 states have internal predecessors, (89), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2023-12-19 08:07:16,502 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 173 transitions.
[2023-12-19 08:07:16,502 INFO  L78                 Accepts]: Start accepts. Automaton has 107 states and 173 transitions. Word has length 257
[2023-12-19 08:07:16,504 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 08:07:16,504 INFO  L495      AbstractCegarLoop]: Abstraction has 107 states and 173 transitions.
[2023-12-19 08:07:16,505 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-19 08:07:16,505 INFO  L276                IsEmpty]: Start isEmpty. Operand 107 states and 173 transitions.
[2023-12-19 08:07:16,508 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2023-12-19 08:07:16,508 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 08:07:16,508 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:16,521 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 08:07:16,719 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 08:07:16,720 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 08:07:16,721 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 08:07:16,730 INFO  L85        PathProgramCache]: Analyzing trace with hash 1221663940, now seen corresponding path program 1 times
[2023-12-19 08:07:16,730 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 08:07:16,730 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963622627]
[2023-12-19 08:07:16,730 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:07:16,730 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 08:07:16,799 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 08:07:16,800 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1973403734]
[2023-12-19 08:07:16,800 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:07:16,800 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:07:16,807 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:07:16,808 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 08:07:16,813 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 08:07:16,973 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:07:16,976 INFO  L262         TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-19 08:07:16,981 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-12-19 08:07:18,005 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2023-12-19 08:07:18,006 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-19 08:07:18,006 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-19 08:07:18,006 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963622627]
[2023-12-19 08:07:18,006 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-19 08:07:18,006 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973403734]
[2023-12-19 08:07:18,006 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973403734] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-19 08:07:18,006 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-19 08:07:18,006 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-19 08:07:18,007 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355614024]
[2023-12-19 08:07:18,007 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-19 08:07:18,007 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-19 08:07:18,007 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-19 08:07:18,008 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-19 08:07:18,008 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2023-12-19 08:07:18,008 INFO  L87              Difference]: Start difference. First operand 107 states and 173 transitions. Second operand  has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-19 08:07:25,726 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2023-12-19 08:07:29,345 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]
[2023-12-19 08:07:30,474 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-19 08:07:30,474 INFO  L93              Difference]: Finished difference Result 439 states and 713 transitions.
[2023-12-19 08:07:30,475 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-12-19 08:07:30,475 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 258
[2023-12-19 08:07:30,476 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-19 08:07:30,479 INFO  L225             Difference]: With dead ends: 439
[2023-12-19 08:07:30,479 INFO  L226             Difference]: Without dead ends: 333
[2023-12-19 08:07:30,480 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210
[2023-12-19 08:07:30,480 INFO  L413           NwaCegarLoop]: 300 mSDtfsCounter, 375 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 178 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time
[2023-12-19 08:07:30,481 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1277 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 544 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time]
[2023-12-19 08:07:30,481 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 333 states.
[2023-12-19 08:07:30,576 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 313.
[2023-12-19 08:07:30,577 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 313 states, 183 states have (on average 1.3934426229508197) internal successors, (255), 183 states have internal predecessors, (255), 126 states have call successors, (126), 3 states have call predecessors, (126), 3 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126)
[2023-12-19 08:07:30,580 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 507 transitions.
[2023-12-19 08:07:30,580 INFO  L78                 Accepts]: Start accepts. Automaton has 313 states and 507 transitions. Word has length 258
[2023-12-19 08:07:30,582 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-19 08:07:30,582 INFO  L495      AbstractCegarLoop]: Abstraction has 313 states and 507 transitions.
[2023-12-19 08:07:30,582 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2023-12-19 08:07:30,582 INFO  L276                IsEmpty]: Start isEmpty. Operand 313 states and 507 transitions.
[2023-12-19 08:07:30,585 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2023-12-19 08:07:30,585 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-19 08:07:30,585 INFO  L195           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:07:30,596 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 08:07:30,785 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 08:07:30,786 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-19 08:07:30,786 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-19 08:07:30,786 INFO  L85        PathProgramCache]: Analyzing trace with hash 1278922242, now seen corresponding path program 1 times
[2023-12-19 08:07:30,787 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-19 08:07:30,787 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883566876]
[2023-12-19 08:07:30,787 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:07:30,787 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-19 08:07:30,817 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-19 08:07:30,817 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1512364352]
[2023-12-19 08:07:30,818 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-19 08:07:30,818 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-19 08:07:30,818 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-19 08:07:30,824 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 08:07:30,840 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 08:07:30,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-19 08:07:31,002 INFO  L262         TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 53 conjunts are in the unsatisfiable core
[2023-12-19 08:07:31,010 INFO  L285         TraceCheckSpWp]: Computing forward predicates...