/usr/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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/eca-rers2012/Problem05_label07.c


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


This is Ultimate 0.2.3-dev-f954360
[2023-04-01 20:51:18,414 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2023-04-01 20:51:18,450 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2023-04-01 20:51:18,451 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2023-04-01 20:51:18,451 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2023-04-01 20:51:18,452 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2023-04-01 20:51:18,453 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-04-01 20:51:18,454 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-04-01 20:51:18,476 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-04-01 20:51:18,476 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-04-01 20:51:18,477 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-04-01 20:51:18,477 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-04-01 20:51:18,477 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-04-01 20:51:18,477 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-04-01 20:51:18,478 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-04-01 20:51:18,478 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-04-01 20:51:18,478 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-04-01 20:51:18,478 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-04-01 20:51:18,478 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-04-01 20:51:18,478 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-04-01 20:51:18,478 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-04-01 20:51:18,478 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-04-01 20:51:18,479 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-04-01 20:51:18,479 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-04-01 20:51:18,479 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-04-01 20:51:18,479 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-04-01 20:51:18,479 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-04-01 20:51:18,479 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-04-01 20:51:18,479 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-04-01 20:51:18,479 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-04-01 20:51:18,479 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-04-01 20:51:18,480 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-04-01 20:51:18,480 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-01 20:51:18,480 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-04-01 20:51:18,480 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-04-01 20:51:18,480 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-04-01 20:51:18,480 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-04-01 20:51:18,480 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-04-01 20:51:18,480 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-04-01 20:51:18,480 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-04-01 20:51:18,480 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-04-01 20:51:18,481 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-04-01 20:51:18,481 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-04-01 20:51:18,481 INFO  L138        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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-04-01 20:51:18,646 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-04-01 20:51:18,664 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-04-01 20:51:18,666 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-04-01 20:51:18,667 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-04-01 20:51:18,667 INFO  L275        PluginConnector]: CDTParser initialized
[2023-04-01 20:51:18,668 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem05_label07.c
[2023-04-01 20:51:19,711 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-04-01 20:51:20,122 INFO  L351              CDTParser]: Found 1 translation units.
[2023-04-01 20:51:20,122 INFO  L172              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label07.c
[2023-04-01 20:51:20,162 INFO  L394              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7523b3e/b9b80bf639184fc08368e8d866fc8452/FLAGc6a4b0d5a
[2023-04-01 20:51:20,176 INFO  L402              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa7523b3e/b9b80bf639184fc08368e8d866fc8452
[2023-04-01 20:51:20,179 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-04-01 20:51:20,180 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2023-04-01 20:51:20,182 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-04-01 20:51:20,182 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-04-01 20:51:20,184 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-04-01 20:51:20,184 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:51:20" (1/1) ...
[2023-04-01 20:51:20,185 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b673d87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:20, skipping insertion in model container
[2023-04-01 20:51:20,185 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:51:20" (1/1) ...
[2023-04-01 20:51:20,190 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-04-01 20:51:20,324 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-04-01 20:51:21,530 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label07.c[378081,378094]
[2023-04-01 20:51:21,558 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-01 20:51:21,566 INFO  L203         MainTranslator]: Completed pre-run
[2023-04-01 20:51:22,139 WARN  L247   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label07.c[378081,378094]
[2023-04-01 20:51:22,148 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-01 20:51:22,181 INFO  L208         MainTranslator]: Completed translation
[2023-04-01 20:51:22,181 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:22 WrapperNode
[2023-04-01 20:51:22,181 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-04-01 20:51:22,182 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-04-01 20:51:22,182 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-04-01 20:51:22,182 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-04-01 20:51:22,190 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:22" (1/1) ...
[2023-04-01 20:51:22,190 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:22" (1/1) ...
[2023-04-01 20:51:22,239 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:22" (1/1) ...
[2023-04-01 20:51:22,239 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:22" (1/1) ...
[2023-04-01 20:51:22,415 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:22" (1/1) ...
[2023-04-01 20:51:22,443 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:22" (1/1) ...
[2023-04-01 20:51:22,469 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:22" (1/1) ...
[2023-04-01 20:51:22,528 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:22" (1/1) ...
[2023-04-01 20:51:22,574 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-04-01 20:51:22,575 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-04-01 20:51:22,575 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-04-01 20:51:22,575 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-04-01 20:51:22,576 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:22" (1/1) ...
[2023-04-01 20:51:22,580 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-01 20:51:22,587 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:51:22,596 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-04-01 20:51:22,614 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-04-01 20:51:22,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2023-04-01 20:51:22,634 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-04-01 20:51:22,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2023-04-01 20:51:22,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2023-04-01 20:51:22,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2023-04-01 20:51:22,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2023-04-01 20:51:22,635 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2023-04-01 20:51:22,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2023-04-01 20:51:22,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2023-04-01 20:51:22,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2023-04-01 20:51:22,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2023-04-01 20:51:22,636 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2023-04-01 20:51:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2023-04-01 20:51:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2023-04-01 20:51:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2023-04-01 20:51:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2023-04-01 20:51:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2023-04-01 20:51:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2023-04-01 20:51:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2023-04-01 20:51:22,636 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2023-04-01 20:51:22,637 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2023-04-01 20:51:22,637 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2023-04-01 20:51:22,637 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2023-04-01 20:51:22,637 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-04-01 20:51:22,637 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2023-04-01 20:51:22,637 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2023-04-01 20:51:22,637 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2023-04-01 20:51:22,637 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2023-04-01 20:51:22,638 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-04-01 20:51:22,638 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-04-01 20:51:22,638 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-04-01 20:51:22,638 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-04-01 20:51:22,638 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-04-01 20:51:22,732 INFO  L236             CfgBuilder]: Building ICFG
[2023-04-01 20:51:22,734 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-04-01 20:51:27,913 INFO  L277             CfgBuilder]: Performing block encoding
[2023-04-01 20:51:27,928 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-04-01 20:51:27,928 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-04-01 20:51:27,931 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:51:27 BoogieIcfgContainer
[2023-04-01 20:51:27,931 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-04-01 20:51:27,932 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-04-01 20:51:27,932 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-04-01 20:51:27,934 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-04-01 20:51:27,934 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 08:51:20" (1/3) ...
[2023-04-01 20:51:27,935 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30da56dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:51:27, skipping insertion in model container
[2023-04-01 20:51:27,935 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:51:22" (2/3) ...
[2023-04-01 20:51:27,935 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30da56dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:51:27, skipping insertion in model container
[2023-04-01 20:51:27,935 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:51:27" (3/3) ...
[2023-04-01 20:51:27,936 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label07.c
[2023-04-01 20:51:27,947 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-04-01 20:51:27,947 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-04-01 20:51:28,002 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-04-01 20:51:28,006 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=LoopsAndPotentialCycles, 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;@2987afa1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-04-01 20:51:28,007 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-04-01 20:51:28,013 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2222 states, 2200 states have (on average 1.864090909090909) internal successors, (4101), 2201 states have internal predecessors, (4101), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2023-04-01 20:51:28,171 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1682
[2023-04-01 20:51:28,171 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:51:28,173 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 20:51:28,174 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:51:28,179 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:51:28,181 INFO  L85        PathProgramCache]: Analyzing trace with hash -1237276038, now seen corresponding path program 1 times
[2023-04-01 20:51:28,187 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:51:28,187 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168496927]
[2023-04-01 20:51:28,187 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:51:28,188 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:51:28,697 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:51:35,395 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:51:35,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:51:35,429 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:51:35,429 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:51:35,429 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168496927]
[2023-04-01 20:51:35,430 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168496927] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:51:35,430 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 20:51:35,431 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-04-01 20:51:35,432 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698761377]
[2023-04-01 20:51:35,432 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:51:35,438 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-04-01 20:51:35,438 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:51:35,465 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-04-01 20:51:35,465 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-04-01 20:51:35,471 INFO  L87              Difference]: Start difference. First operand  has 2222 states, 2200 states have (on average 1.864090909090909) internal successors, (4101), 2201 states have internal predecessors, (4101), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand  has 5 states, 4 states have (on average 417.5) internal successors, (1670), 3 states have internal predecessors, (1670), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-04-01 20:51:47,702 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:51:47,702 INFO  L93              Difference]: Finished difference Result 8124 states and 15411 transitions.
[2023-04-01 20:51:47,704 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-04-01 20:51:47,706 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 417.5) internal successors, (1670), 3 states have internal predecessors, (1670), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 1681
[2023-04-01 20:51:47,712 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:51:47,764 INFO  L225             Difference]: With dead ends: 8124
[2023-04-01 20:51:47,765 INFO  L226             Difference]: Without dead ends: 5834
[2023-04-01 20:51:47,779 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-04-01 20:51:47,783 INFO  L413           NwaCegarLoop]: 333 mSDtfsCounter, 6330 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 12692 mSolverCounterSat, 2990 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6330 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 15682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2990 IncrementalHoareTripleChecker+Valid, 12692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time
[2023-04-01 20:51:47,783 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6330 Valid, 633 Invalid, 15682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2990 Valid, 12692 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time]
[2023-04-01 20:51:47,803 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5834 states.
[2023-04-01 20:51:48,060 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 5801.
[2023-04-01 20:51:48,069 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5801 states, 5731 states have (on average 1.614028965276566) internal successors, (9250), 5734 states have internal predecessors, (9250), 26 states have call successors, (26), 26 states have call predecessors, (26), 43 states have return successors, (98), 40 states have call predecessors, (98), 25 states have call successors, (98)
[2023-04-01 20:51:48,086 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5801 states to 5801 states and 9374 transitions.
[2023-04-01 20:51:48,088 INFO  L78                 Accepts]: Start accepts. Automaton has 5801 states and 9374 transitions. Word has length 1681
[2023-04-01 20:51:48,091 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:51:48,092 INFO  L495      AbstractCegarLoop]: Abstraction has 5801 states and 9374 transitions.
[2023-04-01 20:51:48,092 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 417.5) internal successors, (1670), 3 states have internal predecessors, (1670), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-04-01 20:51:48,093 INFO  L276                IsEmpty]: Start isEmpty. Operand 5801 states and 9374 transitions.
[2023-04-01 20:51:48,145 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1691
[2023-04-01 20:51:48,146 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:51:48,147 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 20:51:48,147 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-04-01 20:51:48,147 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:51:48,148 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:51:48,148 INFO  L85        PathProgramCache]: Analyzing trace with hash 304650147, now seen corresponding path program 1 times
[2023-04-01 20:51:48,148 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:51:48,149 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009510935]
[2023-04-01 20:51:48,149 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:51:48,149 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:51:48,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:51:50,506 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:51:50,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:51:50,527 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:51:50,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:51:50,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:51:50,552 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:51:50,553 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009510935]
[2023-04-01 20:51:50,553 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009510935] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:51:50,553 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 20:51:50,553 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-04-01 20:51:50,553 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246198926]
[2023-04-01 20:51:50,554 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:51:50,556 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-04-01 20:51:50,557 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:51:50,559 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-04-01 20:51:50,559 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2023-04-01 20:51:50,560 INFO  L87              Difference]: Start difference. First operand 5801 states and 9374 transitions. Second operand  has 8 states, 7 states have (on average 239.57142857142858) internal successors, (1677), 5 states have internal predecessors, (1677), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-01 20:52:03,597 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:52:03,597 INFO  L93              Difference]: Finished difference Result 22514 states and 37516 transitions.
[2023-04-01 20:52:03,598 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-04-01 20:52:03,599 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 239.57142857142858) internal successors, (1677), 5 states have internal predecessors, (1677), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 1690
[2023-04-01 20:52:03,599 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:52:03,665 INFO  L225             Difference]: With dead ends: 22514
[2023-04-01 20:52:03,665 INFO  L226             Difference]: Without dead ends: 16719
[2023-04-01 20:52:03,679 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2023-04-01 20:52:03,680 INFO  L413           NwaCegarLoop]: 347 mSDtfsCounter, 16686 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 15208 mSolverCounterSat, 5258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16686 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 20466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5258 IncrementalHoareTripleChecker+Valid, 15208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time
[2023-04-01 20:52:03,680 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16686 Valid, 1283 Invalid, 20466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5258 Valid, 15208 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time]
[2023-04-01 20:52:03,690 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16719 states.
[2023-04-01 20:52:03,931 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16719 to 16670.
[2023-04-01 20:52:03,963 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16670 states, 16342 states have (on average 1.4486598947497247) internal successors, (23674), 16367 states have internal predecessors, (23674), 74 states have call successors, (74), 74 states have call predecessors, (74), 253 states have return successors, (1177), 228 states have call predecessors, (1177), 73 states have call successors, (1177)
[2023-04-01 20:52:03,991 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16670 states to 16670 states and 24925 transitions.
[2023-04-01 20:52:03,991 INFO  L78                 Accepts]: Start accepts. Automaton has 16670 states and 24925 transitions. Word has length 1690
[2023-04-01 20:52:03,992 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:52:03,992 INFO  L495      AbstractCegarLoop]: Abstraction has 16670 states and 24925 transitions.
[2023-04-01 20:52:03,993 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 239.57142857142858) internal successors, (1677), 5 states have internal predecessors, (1677), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-01 20:52:03,993 INFO  L276                IsEmpty]: Start isEmpty. Operand 16670 states and 24925 transitions.
[2023-04-01 20:52:04,055 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1697
[2023-04-01 20:52:04,055 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:52:04,056 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 20:52:04,056 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-04-01 20:52:04,056 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:52:04,057 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:52:04,057 INFO  L85        PathProgramCache]: Analyzing trace with hash 168472333, now seen corresponding path program 1 times
[2023-04-01 20:52:04,057 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:52:04,057 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906963218]
[2023-04-01 20:52:04,058 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:52:04,058 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:52:04,229 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:05,704 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:52:05,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:05,718 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:52:05,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:05,745 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:52:05,745 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:52:05,745 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906963218]
[2023-04-01 20:52:05,745 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906963218] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:52:05,745 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 20:52:05,746 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-04-01 20:52:05,746 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845245668]
[2023-04-01 20:52:05,746 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:52:05,748 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-04-01 20:52:05,748 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:52:05,749 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-04-01 20:52:05,749 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-04-01 20:52:05,750 INFO  L87              Difference]: Start difference. First operand 16670 states and 24925 transitions. Second operand  has 7 states, 6 states have (on average 280.5) internal successors, (1683), 4 states have internal predecessors, (1683), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-01 20:52:13,955 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:52:13,955 INFO  L93              Difference]: Finished difference Result 38929 states and 58417 transitions.
[2023-04-01 20:52:13,956 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-04-01 20:52:13,956 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 280.5) internal successors, (1683), 4 states have internal predecessors, (1683), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 1696
[2023-04-01 20:52:13,957 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:52:14,014 INFO  L225             Difference]: With dead ends: 38929
[2023-04-01 20:52:14,015 INFO  L226             Difference]: Without dead ends: 22265
[2023-04-01 20:52:14,050 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2023-04-01 20:52:14,053 INFO  L413           NwaCegarLoop]: 297 mSDtfsCounter, 16273 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 10609 mSolverCounterSat, 1814 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16273 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 12423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1814 IncrementalHoareTripleChecker+Valid, 10609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time
[2023-04-01 20:52:14,054 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16273 Valid, 790 Invalid, 12423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1814 Valid, 10609 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time]
[2023-04-01 20:52:14,072 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22265 states.
[2023-04-01 20:52:14,374 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22265 to 22156.
[2023-04-01 20:52:14,397 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22156 states, 21669 states have (on average 1.2811389542664635) internal successors, (27761), 21710 states have internal predecessors, (27761), 98 states have call successors, (98), 98 states have call predecessors, (98), 388 states have return successors, (1671), 347 states have call predecessors, (1671), 97 states have call successors, (1671)
[2023-04-01 20:52:14,432 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22156 states to 22156 states and 29530 transitions.
[2023-04-01 20:52:14,432 INFO  L78                 Accepts]: Start accepts. Automaton has 22156 states and 29530 transitions. Word has length 1696
[2023-04-01 20:52:14,432 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:52:14,433 INFO  L495      AbstractCegarLoop]: Abstraction has 22156 states and 29530 transitions.
[2023-04-01 20:52:14,433 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 280.5) internal successors, (1683), 4 states have internal predecessors, (1683), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-01 20:52:14,433 INFO  L276                IsEmpty]: Start isEmpty. Operand 22156 states and 29530 transitions.
[2023-04-01 20:52:14,488 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1700
[2023-04-01 20:52:14,489 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:52:14,490 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-04-01 20:52:14,490 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-04-01 20:52:14,490 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:52:14,490 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:52:14,491 INFO  L85        PathProgramCache]: Analyzing trace with hash 2140637105, now seen corresponding path program 1 times
[2023-04-01 20:52:14,491 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:52:14,491 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089759734]
[2023-04-01 20:52:14,491 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:52:14,491 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:52:14,633 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:16,179 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:52:16,181 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:16,200 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:52:16,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:16,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:52:16,221 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:52:16,221 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089759734]
[2023-04-01 20:52:16,221 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089759734] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:52:16,221 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 20:52:16,222 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-04-01 20:52:16,222 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540814664]
[2023-04-01 20:52:16,222 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:52:16,223 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-04-01 20:52:16,223 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:52:16,225 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-04-01 20:52:16,225 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-04-01 20:52:16,225 INFO  L87              Difference]: Start difference. First operand 22156 states and 29530 transitions. Second operand  has 7 states, 6 states have (on average 281.0) internal successors, (1686), 4 states have internal predecessors, (1686), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-01 20:52:25,848 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:52:25,848 INFO  L93              Difference]: Finished difference Result 66740 states and 92732 transitions.
[2023-04-01 20:52:25,848 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-04-01 20:52:25,849 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 281.0) internal successors, (1686), 4 states have internal predecessors, (1686), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 1699
[2023-04-01 20:52:25,849 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:52:26,066 INFO  L225             Difference]: With dead ends: 66740
[2023-04-01 20:52:26,066 INFO  L226             Difference]: Without dead ends: 44590
[2023-04-01 20:52:26,097 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2023-04-01 20:52:26,103 INFO  L413           NwaCegarLoop]: 311 mSDtfsCounter, 11299 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 12444 mSolverCounterSat, 3374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11299 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 15818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3374 IncrementalHoareTripleChecker+Valid, 12444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time
[2023-04-01 20:52:26,105 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11299 Valid, 1049 Invalid, 15818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3374 Valid, 12444 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time]
[2023-04-01 20:52:26,134 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44590 states.
[2023-04-01 20:52:26,673 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44590 to 42656.
[2023-04-01 20:52:26,715 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42656 states, 41472 states have (on average 1.2024739583333333) internal successors, (49869), 41600 states have internal predecessors, (49869), 186 states have call successors, (186), 186 states have call predecessors, (186), 997 states have return successors, (5450), 869 states have call predecessors, (5450), 185 states have call successors, (5450)
[2023-04-01 20:52:26,785 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42656 states to 42656 states and 55505 transitions.
[2023-04-01 20:52:26,786 INFO  L78                 Accepts]: Start accepts. Automaton has 42656 states and 55505 transitions. Word has length 1699
[2023-04-01 20:52:26,786 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:52:26,786 INFO  L495      AbstractCegarLoop]: Abstraction has 42656 states and 55505 transitions.
[2023-04-01 20:52:26,787 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 281.0) internal successors, (1686), 4 states have internal predecessors, (1686), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2023-04-01 20:52:26,787 INFO  L276                IsEmpty]: Start isEmpty. Operand 42656 states and 55505 transitions.
[2023-04-01 20:52:26,872 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1704
[2023-04-01 20:52:26,872 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:52:26,873 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-04-01 20:52:26,873 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-04-01 20:52:26,874 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:52:26,874 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:52:26,874 INFO  L85        PathProgramCache]: Analyzing trace with hash -721480455, now seen corresponding path program 1 times
[2023-04-01 20:52:26,874 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:52:26,874 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666302414]
[2023-04-01 20:52:26,874 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:52:26,875 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:52:27,078 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:31,069 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:52:31,071 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:31,093 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:52:31,098 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:31,108 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:52:31,108 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:52:31,108 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666302414]
[2023-04-01 20:52:31,108 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666302414] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:52:31,108 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501100490]
[2023-04-01 20:52:31,109 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:52:31,109 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:52:31,109 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:52:31,111 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)
[2023-04-01 20:52:31,116 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-04-01 20:52:31,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:31,584 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2123 conjuncts, 18 conjunts are in the unsatisfiable core
[2023-04-01 20:52:31,612 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:52:33,100 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:52:33,100 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-04-01 20:52:33,101 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [501100490] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:52:33,101 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-04-01 20:52:33,101 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6
[2023-04-01 20:52:33,101 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823915067]
[2023-04-01 20:52:33,101 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:52:33,103 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-04-01 20:52:33,103 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:52:33,104 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-04-01 20:52:33,104 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-04-01 20:52:33,105 INFO  L87              Difference]: Start difference. First operand 42656 states and 55505 transitions. Second operand  has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-04-01 20:52:37,911 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:52:37,911 INFO  L93              Difference]: Finished difference Result 85306 states and 111024 transitions.
[2023-04-01 20:52:37,911 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-04-01 20:52:37,912 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1703
[2023-04-01 20:52:37,934 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:52:38,032 INFO  L225             Difference]: With dead ends: 85306
[2023-04-01 20:52:38,032 INFO  L226             Difference]: Without dead ends: 42656
[2023-04-01 20:52:38,076 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1718 GetRequests, 1714 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-04-01 20:52:38,077 INFO  L413           NwaCegarLoop]: 3074 mSDtfsCounter, 396 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 5736 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 3444 SdHoareTripleChecker+Invalid, 6586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 5736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2023-04-01 20:52:38,077 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 3444 Invalid, 6586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 5736 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2023-04-01 20:52:38,113 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42656 states.
[2023-04-01 20:52:38,598 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42656 to 42651.
[2023-04-01 20:52:38,635 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42651 states, 41469 states have (on average 1.1490028696134462) internal successors, (47648), 41596 states have internal predecessors, (47648), 186 states have call successors, (186), 186 states have call predecessors, (186), 995 states have return successors, (3854), 868 states have call predecessors, (3854), 185 states have call successors, (3854)
[2023-04-01 20:52:38,705 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42651 states to 42651 states and 51688 transitions.
[2023-04-01 20:52:38,706 INFO  L78                 Accepts]: Start accepts. Automaton has 42651 states and 51688 transitions. Word has length 1703
[2023-04-01 20:52:38,707 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:52:38,707 INFO  L495      AbstractCegarLoop]: Abstraction has 42651 states and 51688 transitions.
[2023-04-01 20:52:38,707 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 563.3333333333334) internal successors, (1690), 3 states have internal predecessors, (1690), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-04-01 20:52:38,708 INFO  L276                IsEmpty]: Start isEmpty. Operand 42651 states and 51688 transitions.
[2023-04-01 20:52:38,789 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1722
[2023-04-01 20:52:38,789 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:52:38,790 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 20:52:38,811 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-04-01 20:52:39,002 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:52:39,002 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:52:39,002 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:52:39,003 INFO  L85        PathProgramCache]: Analyzing trace with hash 1054208112, now seen corresponding path program 1 times
[2023-04-01 20:52:39,003 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:52:39,003 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910415184]
[2023-04-01 20:52:39,003 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:52:39,003 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:52:39,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:41,805 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:52:41,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:41,825 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:52:41,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:41,840 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2023-04-01 20:52:41,842 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:41,863 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-04-01 20:52:41,864 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:52:41,864 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910415184]
[2023-04-01 20:52:41,864 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910415184] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:52:41,864 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433088359]
[2023-04-01 20:52:41,864 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:52:41,864 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:52:41,865 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:52:41,881 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)
[2023-04-01 20:52:41,936 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-04-01 20:52:42,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:42,402 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-04-01 20:52:42,422 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:52:42,486 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:52:42,486 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-04-01 20:52:42,617 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:52:42,617 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433088359] provided 0 perfect and 2 imperfect interpolant sequences
[2023-04-01 20:52:42,617 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-04-01 20:52:42,618 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 15
[2023-04-01 20:52:42,618 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649472326]
[2023-04-01 20:52:42,618 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-04-01 20:52:42,621 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2023-04-01 20:52:42,621 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:52:42,622 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2023-04-01 20:52:42,622 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210
[2023-04-01 20:52:42,623 INFO  L87              Difference]: Start difference. First operand 42651 states and 51688 transitions. Second operand  has 15 states, 15 states have (on average 116.46666666666667) internal successors, (1747), 13 states have internal predecessors, (1747), 6 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8)
[2023-04-01 20:53:18,329 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:53:18,329 INFO  L93              Difference]: Finished difference Result 181029 states and 234452 transitions.
[2023-04-01 20:53:18,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. 
[2023-04-01 20:53:18,330 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 116.46666666666667) internal successors, (1747), 13 states have internal predecessors, (1747), 6 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 1721
[2023-04-01 20:53:18,331 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:53:18,848 INFO  L225             Difference]: With dead ends: 181029
[2023-04-01 20:53:18,848 INFO  L226             Difference]: Without dead ends: 138384
[2023-04-01 20:53:18,901 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3576 GetRequests, 3479 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3398 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1614, Invalid=7892, Unknown=0, NotChecked=0, Total=9506
[2023-04-01 20:53:18,902 INFO  L413           NwaCegarLoop]: 450 mSDtfsCounter, 33092 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 43327 mSolverCounterSat, 15102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33092 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 58429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15102 IncrementalHoareTripleChecker+Valid, 43327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time
[2023-04-01 20:53:18,902 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33092 Valid, 3152 Invalid, 58429 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15102 Valid, 43327 Invalid, 0 Unknown, 0 Unchecked, 31.6s Time]
[2023-04-01 20:53:18,993 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 138384 states.
[2023-04-01 20:53:20,856 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 138384 to 124891.
[2023-04-01 20:53:20,924 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 124891 states, 120805 states have (on average 1.0598319605976574) internal successors, (128033), 121400 states have internal predecessors, (128033), 538 states have call successors, (538), 538 states have call predecessors, (538), 3547 states have return successors, (13408), 2952 states have call predecessors, (13408), 537 states have call successors, (13408)
[2023-04-01 20:53:21,270 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124891 states to 124891 states and 141979 transitions.
[2023-04-01 20:53:21,270 INFO  L78                 Accepts]: Start accepts. Automaton has 124891 states and 141979 transitions. Word has length 1721
[2023-04-01 20:53:21,271 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:53:21,271 INFO  L495      AbstractCegarLoop]: Abstraction has 124891 states and 141979 transitions.
[2023-04-01 20:53:21,271 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 116.46666666666667) internal successors, (1747), 13 states have internal predecessors, (1747), 6 states have call successors, (17), 7 states have call predecessors, (17), 7 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8)
[2023-04-01 20:53:21,271 INFO  L276                IsEmpty]: Start isEmpty. Operand 124891 states and 141979 transitions.
[2023-04-01 20:53:21,714 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1737
[2023-04-01 20:53:21,714 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:53:21,715 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 20:53:21,737 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-04-01 20:53:21,916 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,SelfDestructingSolverStorable5
[2023-04-01 20:53:21,916 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:53:21,917 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:53:21,917 INFO  L85        PathProgramCache]: Analyzing trace with hash -41682686, now seen corresponding path program 1 times
[2023-04-01 20:53:21,917 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:53:21,917 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097707590]
[2023-04-01 20:53:21,918 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:53:21,918 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:53:22,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:23,463 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:53:23,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:23,476 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:53:23,479 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:23,485 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2023-04-01 20:53:23,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:23,530 INFO  L134       CoverageAnalysis]: Checked inductivity of 71 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-04-01 20:53:23,530 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:53:23,530 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097707590]
[2023-04-01 20:53:23,530 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097707590] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:53:23,530 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863721558]
[2023-04-01 20:53:23,531 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:53:23,531 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:53:23,531 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:53:23,532 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)
[2023-04-01 20:53:23,534 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-04-01 20:53:24,027 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:24,034 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-04-01 20:53:24,046 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:53:24,157 INFO  L134       CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:53:24,157 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-04-01 20:53:24,310 INFO  L134       CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:53:24,310 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [863721558] provided 0 perfect and 2 imperfect interpolant sequences
[2023-04-01 20:53:24,311 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-04-01 20:53:24,311 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12
[2023-04-01 20:53:24,311 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857020952]
[2023-04-01 20:53:24,311 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-04-01 20:53:24,313 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-04-01 20:53:24,314 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:53:24,315 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-04-01 20:53:24,315 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2023-04-01 20:53:24,318 INFO  L87              Difference]: Start difference. First operand 124891 states and 141979 transitions. Second operand  has 12 states, 12 states have (on average 148.66666666666666) internal successors, (1784), 10 states have internal predecessors, (1784), 4 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6)
[2023-04-01 20:53:38,798 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:53:38,798 INFO  L93              Difference]: Finished difference Result 296145 states and 339347 transitions.
[2023-04-01 20:53:38,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-04-01 20:53:38,799 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 148.66666666666666) internal successors, (1784), 10 states have internal predecessors, (1784), 4 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 1736
[2023-04-01 20:53:38,799 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:53:39,276 INFO  L225             Difference]: With dead ends: 296145
[2023-04-01 20:53:39,276 INFO  L226             Difference]: Without dead ends: 167316
[2023-04-01 20:53:39,368 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3498 GetRequests, 3477 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462
[2023-04-01 20:53:39,369 INFO  L413           NwaCegarLoop]: 384 mSDtfsCounter, 12058 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 30427 mSolverCounterSat, 3273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12058 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 33700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3273 IncrementalHoareTripleChecker+Valid, 30427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time
[2023-04-01 20:53:39,369 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12058 Valid, 2102 Invalid, 33700 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3273 Valid, 30427 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time]
[2023-04-01 20:53:39,485 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 167316 states.
[2023-04-01 20:53:41,589 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 167316 to 162939.
[2023-04-01 20:53:41,687 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 162939 states, 157895 states have (on average 1.0435605940656765) internal successors, (164773), 158643 states have internal predecessors, (164773), 706 states have call successors, (706), 706 states have call predecessors, (706), 4337 states have return successors, (14646), 3589 states have call predecessors, (14646), 705 states have call successors, (14646)
[2023-04-01 20:53:42,120 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 162939 states to 162939 states and 180125 transitions.
[2023-04-01 20:53:42,121 INFO  L78                 Accepts]: Start accepts. Automaton has 162939 states and 180125 transitions. Word has length 1736
[2023-04-01 20:53:42,121 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:53:42,121 INFO  L495      AbstractCegarLoop]: Abstraction has 162939 states and 180125 transitions.
[2023-04-01 20:53:42,122 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 148.66666666666666) internal successors, (1784), 10 states have internal predecessors, (1784), 4 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6)
[2023-04-01 20:53:42,122 INFO  L276                IsEmpty]: Start isEmpty. Operand 162939 states and 180125 transitions.
[2023-04-01 20:53:42,258 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1766
[2023-04-01 20:53:42,259 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:53:42,259 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 20:53:42,278 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-04-01 20:53:42,468 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:53:42,468 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:53:42,468 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:53:42,469 INFO  L85        PathProgramCache]: Analyzing trace with hash 1484050154, now seen corresponding path program 1 times
[2023-04-01 20:53:42,469 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:53:42,469 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917327212]
[2023-04-01 20:53:42,469 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:53:42,469 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:53:42,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:02,557 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:54:02,559 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:02,577 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:54:02,586 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:02,655 INFO  L134       CoverageAnalysis]: Checked inductivity of 81 backedges. 80 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:54:02,655 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:54:02,655 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917327212]
[2023-04-01 20:54:02,655 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917327212] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:54:02,655 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676317225]
[2023-04-01 20:54:02,656 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:54:02,656 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:54:02,656 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:54:02,665 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)
[2023-04-01 20:54:02,665 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-04-01 20:54:03,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:03,110 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2183 conjuncts, 18 conjunts are in the unsatisfiable core
[2023-04-01 20:54:03,123 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:54:04,756 INFO  L134       CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:54:04,756 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-04-01 20:54:04,756 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [676317225] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:54:04,756 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-04-01 20:54:04,757 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2023-04-01 20:54:04,757 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490238140]
[2023-04-01 20:54:04,757 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:54:04,759 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-04-01 20:54:04,759 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:54:04,760 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-04-01 20:54:04,760 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-04-01 20:54:04,760 INFO  L87              Difference]: Start difference. First operand 162939 states and 180125 transitions. Second operand  has 3 states, 3 states have (on average 584.0) internal successors, (1752), 3 states have internal predecessors, (1752), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-04-01 20:54:10,679 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:54:10,679 INFO  L93              Difference]: Finished difference Result 423415 states and 473710 transitions.
[2023-04-01 20:54:10,680 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-04-01 20:54:10,680 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 584.0) internal successors, (1752), 3 states have internal predecessors, (1752), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1765
[2023-04-01 20:54:10,682 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:54:11,434 INFO  L225             Difference]: With dead ends: 423415
[2023-04-01 20:54:11,434 INFO  L226             Difference]: Without dead ends: 258711
[2023-04-01 20:54:12,089 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1781 GetRequests, 1776 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-04-01 20:54:12,094 INFO  L413           NwaCegarLoop]: 3724 mSDtfsCounter, 190 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 5197 mSolverCounterSat, 1737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 6934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1737 IncrementalHoareTripleChecker+Valid, 5197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2023-04-01 20:54:12,094 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 3971 Invalid, 6934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1737 Valid, 5197 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2023-04-01 20:54:12,253 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 258711 states.
[2023-04-01 20:54:15,495 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 258711 to 253236.
[2023-04-01 20:54:15,659 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 253236 states, 247227 states have (on average 1.0369660271734074) internal successors, (256366), 248022 states have internal predecessors, (256366), 1122 states have call successors, (1122), 1122 states have call predecessors, (1122), 4886 states have return successors, (21541), 4091 states have call predecessors, (21541), 1121 states have call successors, (21541)
[2023-04-01 20:54:16,297 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 253236 states to 253236 states and 279029 transitions.
[2023-04-01 20:54:16,298 INFO  L78                 Accepts]: Start accepts. Automaton has 253236 states and 279029 transitions. Word has length 1765
[2023-04-01 20:54:16,299 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:54:16,299 INFO  L495      AbstractCegarLoop]: Abstraction has 253236 states and 279029 transitions.
[2023-04-01 20:54:16,300 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 584.0) internal successors, (1752), 3 states have internal predecessors, (1752), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2023-04-01 20:54:16,302 INFO  L276                IsEmpty]: Start isEmpty. Operand 253236 states and 279029 transitions.
[2023-04-01 20:54:16,686 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1932
[2023-04-01 20:54:16,686 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:54:16,687 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 20:54:16,693 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2023-04-01 20:54:16,892 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:54:16,893 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:54:16,893 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:54:16,894 INFO  L85        PathProgramCache]: Analyzing trace with hash -1180249018, now seen corresponding path program 1 times
[2023-04-01 20:54:16,894 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:54:16,894 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709118302]
[2023-04-01 20:54:16,894 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:54:16,894 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:54:17,149 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:19,121 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:54:19,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:19,139 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:54:19,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:19,181 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2023-04-01 20:54:19,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:19,231 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198
[2023-04-01 20:54:19,239 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:19,252 INFO  L134       CoverageAnalysis]: Checked inductivity of 381 backedges. 241 proven. 70 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2023-04-01 20:54:19,253 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:54:19,253 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709118302]
[2023-04-01 20:54:19,253 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709118302] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:54:19,253 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186943506]
[2023-04-01 20:54:19,253 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:54:19,253 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:54:19,254 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:54:19,254 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)
[2023-04-01 20:54:19,255 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-04-01 20:54:19,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:19,789 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2462 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-04-01 20:54:19,826 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:54:19,884 INFO  L134       CoverageAnalysis]: Checked inductivity of 381 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked.
[2023-04-01 20:54:19,885 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-04-01 20:54:19,885 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [186943506] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:54:19,885 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-04-01 20:54:19,885 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10
[2023-04-01 20:54:19,885 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463207854]
[2023-04-01 20:54:19,885 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:54:19,887 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-04-01 20:54:19,887 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:54:19,888 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-04-01 20:54:19,888 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2023-04-01 20:54:19,889 INFO  L87              Difference]: Start difference. First operand 253236 states and 279029 transitions. Second operand  has 5 states, 5 states have (on average 342.2) internal successors, (1711), 4 states have internal predecessors, (1711), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2023-04-01 20:54:28,628 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:54:28,628 INFO  L93              Difference]: Finished difference Result 563179 states and 624777 transitions.
[2023-04-01 20:54:28,629 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-04-01 20:54:28,629 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 342.2) internal successors, (1711), 4 states have internal predecessors, (1711), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 1931
[2023-04-01 20:54:28,630 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:54:29,791 INFO  L225             Difference]: With dead ends: 563179
[2023-04-01 20:54:29,791 INFO  L226             Difference]: Without dead ends: 309949
[2023-04-01 20:54:29,958 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1945 GetRequests, 1934 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156
[2023-04-01 20:54:29,959 INFO  L413           NwaCegarLoop]: 534 mSDtfsCounter, 6337 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 9413 mSolverCounterSat, 3325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6337 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 12738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3325 IncrementalHoareTripleChecker+Valid, 9413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2023-04-01 20:54:29,959 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6337 Valid, 1317 Invalid, 12738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3325 Valid, 9413 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2023-04-01 20:54:30,180 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 309949 states.
[2023-04-01 20:54:34,329 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 309949 to 306033.
[2023-04-01 20:54:34,573 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 306033 states, 299217 states have (on average 1.0360474170919434) internal successors, (310003), 300097 states have internal predecessors, (310003), 1362 states have call successors, (1362), 1362 states have call predecessors, (1362), 5453 states have return successors, (26949), 4573 states have call predecessors, (26949), 1361 states have call successors, (26949)
[2023-04-01 20:54:35,892 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 306033 states to 306033 states and 338314 transitions.
[2023-04-01 20:54:35,895 INFO  L78                 Accepts]: Start accepts. Automaton has 306033 states and 338314 transitions. Word has length 1931
[2023-04-01 20:54:35,896 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:54:35,896 INFO  L495      AbstractCegarLoop]: Abstraction has 306033 states and 338314 transitions.
[2023-04-01 20:54:35,896 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 342.2) internal successors, (1711), 4 states have internal predecessors, (1711), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2023-04-01 20:54:35,896 INFO  L276                IsEmpty]: Start isEmpty. Operand 306033 states and 338314 transitions.
[2023-04-01 20:54:36,172 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2045
[2023-04-01 20:54:36,172 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:54:36,173 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 20:54:36,181 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-04-01 20:54:36,383 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:54:36,384 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:54:36,409 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:54:36,410 INFO  L85        PathProgramCache]: Analyzing trace with hash 1317129125, now seen corresponding path program 1 times
[2023-04-01 20:54:36,410 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:54:36,410 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285667095]
[2023-04-01 20:54:36,410 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:54:36,411 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:54:36,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:39,882 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:54:39,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:39,901 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:54:39,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:39,925 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2023-04-01 20:54:39,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:39,943 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161
[2023-04-01 20:54:39,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:40,052 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311
[2023-04-01 20:54:40,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:40,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 704 backedges. 508 proven. 62 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked.
[2023-04-01 20:54:40,070 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:54:40,071 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285667095]
[2023-04-01 20:54:40,071 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285667095] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:54:40,071 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953177490]
[2023-04-01 20:54:40,071 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:54:40,071 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:54:40,071 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:54:40,072 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-04-01 20:54:40,073 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-04-01 20:54:40,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:40,663 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2628 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-04-01 20:54:40,678 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:54:40,911 INFO  L134       CoverageAnalysis]: Checked inductivity of 704 backedges. 607 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked.
[2023-04-01 20:54:40,911 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-04-01 20:54:41,325 INFO  L134       CoverageAnalysis]: Checked inductivity of 704 backedges. 513 proven. 60 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked.
[2023-04-01 20:54:41,325 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [953177490] provided 0 perfect and 2 imperfect interpolant sequences
[2023-04-01 20:54:41,326 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-04-01 20:54:41,326 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 11
[2023-04-01 20:54:41,328 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934357363]
[2023-04-01 20:54:41,328 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-04-01 20:54:41,330 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2023-04-01 20:54:41,330 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:54:41,332 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2023-04-01 20:54:41,332 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110
[2023-04-01 20:54:41,333 INFO  L87              Difference]: Start difference. First operand 306033 states and 338314 transitions. Second operand  has 11 states, 11 states have (on average 202.8181818181818) internal successors, (2231), 9 states have internal predecessors, (2231), 4 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10)
[2023-04-01 20:54:55,506 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:54:55,507 INFO  L93              Difference]: Finished difference Result 614834 states and 682900 transitions.
[2023-04-01 20:54:55,507 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2023-04-01 20:54:55,507 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 202.8181818181818) internal successors, (2231), 9 states have internal predecessors, (2231), 4 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 2044
[2023-04-01 20:54:55,528 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:54:56,594 INFO  L225             Difference]: With dead ends: 614834
[2023-04-01 20:54:56,594 INFO  L226             Difference]: Without dead ends: 308807
[2023-04-01 20:54:56,968 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4133 GetRequests, 4107 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650
[2023-04-01 20:54:56,969 INFO  L413           NwaCegarLoop]: 331 mSDtfsCounter, 11853 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 20028 mSolverCounterSat, 3088 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11853 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 23116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3088 IncrementalHoareTripleChecker+Valid, 20028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time
[2023-04-01 20:54:56,970 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11853 Valid, 1579 Invalid, 23116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3088 Valid, 20028 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time]
[2023-04-01 20:54:57,208 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 308807 states.
[2023-04-01 20:55:01,024 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 308807 to 300864.
[2023-04-01 20:55:01,272 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 300864 states, 294084 states have (on average 1.0292331442717046) internal successors, (302681), 294972 states have internal predecessors, (302681), 1338 states have call successors, (1338), 1338 states have call predecessors, (1338), 5441 states have return successors, (22986), 4553 states have call predecessors, (22986), 1337 states have call successors, (22986)
[2023-04-01 20:55:01,990 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 300864 states to 300864 states and 327005 transitions.
[2023-04-01 20:55:01,992 INFO  L78                 Accepts]: Start accepts. Automaton has 300864 states and 327005 transitions. Word has length 2044
[2023-04-01 20:55:01,992 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:55:01,992 INFO  L495      AbstractCegarLoop]: Abstraction has 300864 states and 327005 transitions.
[2023-04-01 20:55:01,993 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 202.8181818181818) internal successors, (2231), 9 states have internal predecessors, (2231), 4 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10)
[2023-04-01 20:55:01,993 INFO  L276                IsEmpty]: Start isEmpty. Operand 300864 states and 327005 transitions.
[2023-04-01 20:55:02,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2243
[2023-04-01 20:55:02,540 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:55:02,541 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-04-01 20:55:02,549 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-04-01 20:55:02,747 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:55:02,747 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:55:02,748 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:55:02,750 INFO  L85        PathProgramCache]: Analyzing trace with hash -1982279632, now seen corresponding path program 1 times
[2023-04-01 20:55:02,750 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:55:02,750 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970836711]
[2023-04-01 20:55:02,751 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:55:02,751 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:55:03,006 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:08,085 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:55:08,087 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:08,101 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:55:08,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:08,823 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221
[2023-04-01 20:55:08,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:09,411 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221
[2023-04-01 20:55:09,424 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:09,617 INFO  L134       CoverageAnalysis]: Checked inductivity of 552 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-04-01 20:55:09,618 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:55:09,618 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970836711]
[2023-04-01 20:55:09,618 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970836711] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:55:09,618 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 20:55:09,618 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-04-01 20:55:09,618 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568780155]
[2023-04-01 20:55:09,618 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:55:09,620 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-04-01 20:55:09,620 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:55:09,621 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-04-01 20:55:09,621 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-04-01 20:55:09,621 INFO  L87              Difference]: Start difference. First operand 300864 states and 327005 transitions. Second operand  has 7 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 4 states have internal predecessors, (2225), 4 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)