/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_label11.c


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


This is Ultimate 0.2.3-dev-f954360
[2023-04-01 20:52:31,461 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2023-04-01 20:52:31,514 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2023-04-01 20:52:31,515 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2023-04-01 20:52:31,517 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 20:52:31,536 INFO  L113        SettingsManager]: Loading preferences was successful
[2023-04-01 20:52:31,537 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2023-04-01 20:52:31,537 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-04-01 20:52:31,537 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-04-01 20:52:31,538 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-04-01 20:52:31,538 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-04-01 20:52:31,538 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-04-01 20:52:31,538 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2023-04-01 20:52:31,539 INFO  L138        SettingsManager]:  * Use SBE=true
[2023-04-01 20:52:31,539 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-04-01 20:52:31,539 INFO  L138        SettingsManager]:  * sizeof long=4
[2023-04-01 20:52:31,539 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-04-01 20:52:31,539 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2023-04-01 20:52:31,539 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2023-04-01 20:52:31,539 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-04-01 20:52:31,539 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-04-01 20:52:31,540 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-04-01 20:52:31,540 INFO  L138        SettingsManager]:  * sizeof long double=12
[2023-04-01 20:52:31,540 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2023-04-01 20:52:31,540 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2023-04-01 20:52:31,540 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-04-01 20:52:31,540 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-04-01 20:52:31,540 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-04-01 20:52:31,540 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-04-01 20:52:31,541 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-01 20:52:31,541 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-04-01 20:52:31,541 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-04-01 20:52:31,541 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-04-01 20:52:31,541 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-04-01 20:52:31,541 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-04-01 20:52:31,541 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-04-01 20:52:31,541 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-04-01 20:52:31,542 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-04-01 20:52:31,542 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-04-01 20:52:31,542 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-04-01 20:52:31,542 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-04-01 20:52:31,780 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-04-01 20:52:31,799 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-04-01 20:52:31,801 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-04-01 20:52:31,802 INFO  L271        PluginConnector]: Initializing CDTParser...
[2023-04-01 20:52:31,802 INFO  L275        PluginConnector]: CDTParser initialized
[2023-04-01 20:52:31,803 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem05_label11.c
[2023-04-01 20:52:33,052 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2023-04-01 20:52:33,725 INFO  L351              CDTParser]: Found 1 translation units.
[2023-04-01 20:52:33,726 INFO  L172              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label11.c
[2023-04-01 20:52:33,784 INFO  L394              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffe2f6be7/6d0213ea160c4862b9a41bba185ef397/FLAGac4c77d71
[2023-04-01 20:52:33,807 INFO  L402              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffe2f6be7/6d0213ea160c4862b9a41bba185ef397
[2023-04-01 20:52:33,810 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-04-01 20:52:33,811 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2023-04-01 20:52:33,814 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-04-01 20:52:33,814 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-04-01 20:52:33,819 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-04-01 20:52:33,820 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:52:33" (1/1) ...
[2023-04-01 20:52:33,821 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38ae74af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:33, skipping insertion in model container
[2023-04-01 20:52:33,821 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:52:33" (1/1) ...
[2023-04-01 20:52:33,827 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2023-04-01 20:52:33,997 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2023-04-01 20:52:35,497 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_label11.c[376318,376331]
[2023-04-01 20:52:35,519 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-01 20:52:35,529 INFO  L203         MainTranslator]: Completed pre-run
[2023-04-01 20:52:36,361 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_label11.c[376318,376331]
[2023-04-01 20:52:36,370 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-04-01 20:52:36,415 INFO  L208         MainTranslator]: Completed translation
[2023-04-01 20:52:36,417 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:36 WrapperNode
[2023-04-01 20:52:36,418 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-04-01 20:52:36,419 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-04-01 20:52:36,419 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2023-04-01 20:52:36,419 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2023-04-01 20:52:36,430 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:36" (1/1) ...
[2023-04-01 20:52:36,430 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:36" (1/1) ...
[2023-04-01 20:52:36,515 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:36" (1/1) ...
[2023-04-01 20:52:36,515 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:36" (1/1) ...
[2023-04-01 20:52:36,656 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:36" (1/1) ...
[2023-04-01 20:52:36,697 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:36" (1/1) ...
[2023-04-01 20:52:36,756 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:36" (1/1) ...
[2023-04-01 20:52:36,782 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:36" (1/1) ...
[2023-04-01 20:52:36,860 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-04-01 20:52:36,861 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-04-01 20:52:36,861 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2023-04-01 20:52:36,861 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2023-04-01 20:52:36,862 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:36" (1/1) ...
[2023-04-01 20:52:36,868 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-04-01 20:52:36,880 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:52:36,895 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 20:52:36,913 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 20:52:36,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2023-04-01 20:52:36,935 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-04-01 20:52:36,936 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2023-04-01 20:52:36,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2023-04-01 20:52:36,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2023-04-01 20:52:36,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2023-04-01 20:52:36,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2023-04-01 20:52:36,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2023-04-01 20:52:36,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2023-04-01 20:52:36,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2023-04-01 20:52:36,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2023-04-01 20:52:36,937 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2023-04-01 20:52:36,937 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2023-04-01 20:52:36,937 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2023-04-01 20:52:36,937 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2023-04-01 20:52:36,938 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-04-01 20:52:36,939 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-04-01 20:52:36,939 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2023-04-01 20:52:36,939 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2023-04-01 20:52:36,939 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-04-01 20:52:37,161 INFO  L236             CfgBuilder]: Building ICFG
[2023-04-01 20:52:37,163 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-04-01 20:52:43,458 INFO  L277             CfgBuilder]: Performing block encoding
[2023-04-01 20:52:43,477 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-04-01 20:52:43,478 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-04-01 20:52:43,482 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:52:43 BoogieIcfgContainer
[2023-04-01 20:52:43,482 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-04-01 20:52:43,484 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-04-01 20:52:43,484 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2023-04-01 20:52:43,487 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2023-04-01 20:52:43,487 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 08:52:33" (1/3) ...
[2023-04-01 20:52:43,487 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1320acb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:52:43, skipping insertion in model container
[2023-04-01 20:52:43,487 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:52:36" (2/3) ...
[2023-04-01 20:52:43,488 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1320acb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:52:43, skipping insertion in model container
[2023-04-01 20:52:43,488 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:52:43" (3/3) ...
[2023-04-01 20:52:43,489 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label11.c
[2023-04-01 20:52:43,503 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-04-01 20:52:43,504 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-04-01 20:52:43,586 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-04-01 20:52:43,592 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;@6af2f316, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-04-01 20:52:43,592 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-04-01 20:52:43,602 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 20:52:43,698 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1669
[2023-04-01 20:52:43,699 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:52:43,700 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]
[2023-04-01 20:52:43,701 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:52:43,706 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:52:43,707 INFO  L85        PathProgramCache]: Analyzing trace with hash -1872637959, now seen corresponding path program 1 times
[2023-04-01 20:52:43,714 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:52:43,715 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20348303]
[2023-04-01 20:52:43,716 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:52:43,716 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:52:44,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:52,543 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:52:52,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:52:52,613 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 20:52:52,614 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:52:52,614 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20348303]
[2023-04-01 20:52:52,615 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20348303] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:52:52,615 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 20:52:52,615 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-04-01 20:52:52,616 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092679780]
[2023-04-01 20:52:52,617 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:52:52,624 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-04-01 20:52:52,628 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:52:52,664 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-04-01 20:52:52,665 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-04-01 20:52:52,672 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 414.25) internal successors, (1657), 3 states have internal predecessors, (1657), 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 20:53:07,145 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:53:07,146 INFO  L93              Difference]: Finished difference Result 8124 states and 15411 transitions.
[2023-04-01 20:53:07,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-04-01 20:53:07,149 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 414.25) internal successors, (1657), 3 states have internal predecessors, (1657), 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 1668
[2023-04-01 20:53:07,155 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:53:07,197 INFO  L225             Difference]: With dead ends: 8124
[2023-04-01 20:53:07,197 INFO  L226             Difference]: Without dead ends: 5834
[2023-04-01 20:53:07,213 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 20:53:07,217 INFO  L413           NwaCegarLoop]: 333 mSDtfsCounter, 6356 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 12692 mSolverCounterSat, 2990 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6356 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, 13.9s IncrementalHoareTripleChecker+Time
[2023-04-01 20:53:07,218 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6356 Valid, 633 Invalid, 15682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2990 Valid, 12692 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time]
[2023-04-01 20:53:07,243 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5834 states.
[2023-04-01 20:53:07,459 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 5801.
[2023-04-01 20:53:07,472 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 20:53:07,495 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5801 states to 5801 states and 9374 transitions.
[2023-04-01 20:53:07,497 INFO  L78                 Accepts]: Start accepts. Automaton has 5801 states and 9374 transitions. Word has length 1668
[2023-04-01 20:53:07,502 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:53:07,503 INFO  L495      AbstractCegarLoop]: Abstraction has 5801 states and 9374 transitions.
[2023-04-01 20:53:07,504 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 414.25) internal successors, (1657), 3 states have internal predecessors, (1657), 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 20:53:07,504 INFO  L276                IsEmpty]: Start isEmpty. Operand 5801 states and 9374 transitions.
[2023-04-01 20:53:07,576 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1678
[2023-04-01 20:53:07,577 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:53:07,578 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]
[2023-04-01 20:53:07,578 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-04-01 20:53:07,578 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:53:07,579 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:53:07,579 INFO  L85        PathProgramCache]: Analyzing trace with hash -994921424, now seen corresponding path program 1 times
[2023-04-01 20:53:07,579 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:53:07,579 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479792130]
[2023-04-01 20:53:07,580 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:53:07,580 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:53:07,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:10,896 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:53:10,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:10,927 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:53:10,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:10,952 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 20:53:10,953 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:53:10,954 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479792130]
[2023-04-01 20:53:10,954 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479792130] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:53:10,954 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 20:53:10,954 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-04-01 20:53:10,955 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124040855]
[2023-04-01 20:53:10,955 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:53:10,959 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-04-01 20:53:10,959 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:53:10,961 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-04-01 20:53:10,962 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2023-04-01 20:53:10,963 INFO  L87              Difference]: Start difference. First operand 5801 states and 9374 transitions. Second operand  has 8 states, 7 states have (on average 237.71428571428572) internal successors, (1664), 5 states have internal predecessors, (1664), 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 20:53:25,590 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:53:25,597 INFO  L93              Difference]: Finished difference Result 22514 states and 37516 transitions.
[2023-04-01 20:53:25,598 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-04-01 20:53:25,599 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 237.71428571428572) internal successors, (1664), 5 states have internal predecessors, (1664), 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 1677
[2023-04-01 20:53:25,599 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:53:25,677 INFO  L225             Difference]: With dead ends: 22514
[2023-04-01 20:53:25,677 INFO  L226             Difference]: Without dead ends: 16719
[2023-04-01 20:53:25,697 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240
[2023-04-01 20:53:25,699 INFO  L413           NwaCegarLoop]: 347 mSDtfsCounter, 16686 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 15208 mSolverCounterSat, 5258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s 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, 13.9s IncrementalHoareTripleChecker+Time
[2023-04-01 20:53:25,699 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16686 Valid, 1283 Invalid, 20466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5258 Valid, 15208 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time]
[2023-04-01 20:53:25,717 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16719 states.
[2023-04-01 20:53:26,050 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16719 to 16670.
[2023-04-01 20:53:26,086 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 20:53:26,120 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16670 states to 16670 states and 24925 transitions.
[2023-04-01 20:53:26,121 INFO  L78                 Accepts]: Start accepts. Automaton has 16670 states and 24925 transitions. Word has length 1677
[2023-04-01 20:53:26,121 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:53:26,121 INFO  L495      AbstractCegarLoop]: Abstraction has 16670 states and 24925 transitions.
[2023-04-01 20:53:26,122 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 237.71428571428572) internal successors, (1664), 5 states have internal predecessors, (1664), 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 20:53:26,123 INFO  L276                IsEmpty]: Start isEmpty. Operand 16670 states and 24925 transitions.
[2023-04-01 20:53:26,229 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1684
[2023-04-01 20:53:26,229 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:53:26,230 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]
[2023-04-01 20:53:26,230 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-04-01 20:53:26,231 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:53:26,231 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:53:26,231 INFO  L85        PathProgramCache]: Analyzing trace with hash -336799610, now seen corresponding path program 1 times
[2023-04-01 20:53:26,232 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:53:26,232 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061075597]
[2023-04-01 20:53:26,232 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:53:26,232 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:53:26,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:28,328 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:53:28,333 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:28,347 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:53:28,351 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:28,372 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 20:53:28,373 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:53:28,373 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061075597]
[2023-04-01 20:53:28,373 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061075597] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:53:28,373 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 20:53:28,373 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-04-01 20:53:28,374 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387302429]
[2023-04-01 20:53:28,374 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:53:28,375 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-04-01 20:53:28,376 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:53:28,377 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-04-01 20:53:28,378 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-04-01 20:53:28,378 INFO  L87              Difference]: Start difference. First operand 16670 states and 24925 transitions. Second operand  has 7 states, 6 states have (on average 278.3333333333333) internal successors, (1670), 4 states have internal predecessors, (1670), 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 20:53:37,141 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:53:37,142 INFO  L93              Difference]: Finished difference Result 38929 states and 58417 transitions.
[2023-04-01 20:53:37,143 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-04-01 20:53:37,146 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 278.3333333333333) internal successors, (1670), 4 states have internal predecessors, (1670), 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 1683
[2023-04-01 20:53:37,147 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:53:37,225 INFO  L225             Difference]: With dead ends: 38929
[2023-04-01 20:53:37,225 INFO  L226             Difference]: Without dead ends: 22265
[2023-04-01 20:53:37,266 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 20:53:37,270 INFO  L413           NwaCegarLoop]: 297 mSDtfsCounter, 16273 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 10609 mSolverCounterSat, 1814 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s 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, 8.2s IncrementalHoareTripleChecker+Time
[2023-04-01 20:53:37,272 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16273 Valid, 790 Invalid, 12423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1814 Valid, 10609 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time]
[2023-04-01 20:53:37,295 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22265 states.
[2023-04-01 20:53:37,862 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22265 to 22156.
[2023-04-01 20:53:37,887 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 20:53:37,926 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22156 states to 22156 states and 29530 transitions.
[2023-04-01 20:53:37,927 INFO  L78                 Accepts]: Start accepts. Automaton has 22156 states and 29530 transitions. Word has length 1683
[2023-04-01 20:53:37,927 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:53:37,927 INFO  L495      AbstractCegarLoop]: Abstraction has 22156 states and 29530 transitions.
[2023-04-01 20:53:37,928 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 278.3333333333333) internal successors, (1670), 4 states have internal predecessors, (1670), 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 20:53:37,928 INFO  L276                IsEmpty]: Start isEmpty. Operand 22156 states and 29530 transitions.
[2023-04-01 20:53:37,997 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1687
[2023-04-01 20:53:37,997 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:53:37,998 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:53:37,998 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-04-01 20:53:37,998 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:53:37,999 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:53:37,999 INFO  L85        PathProgramCache]: Analyzing trace with hash 1756939618, now seen corresponding path program 1 times
[2023-04-01 20:53:37,999 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:53:37,999 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009004232]
[2023-04-01 20:53:38,000 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:53:38,000 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:53:38,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:39,767 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:53:39,769 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:39,784 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:53:39,787 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:39,809 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 20:53:39,810 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:53:39,810 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009004232]
[2023-04-01 20:53:39,810 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009004232] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:53:39,810 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-04-01 20:53:39,810 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-04-01 20:53:39,810 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001991733]
[2023-04-01 20:53:39,810 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:53:39,812 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-04-01 20:53:39,812 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:53:39,814 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-04-01 20:53:39,814 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2023-04-01 20:53:39,815 INFO  L87              Difference]: Start difference. First operand 22156 states and 29530 transitions. Second operand  has 7 states, 6 states have (on average 278.8333333333333) internal successors, (1673), 4 states have internal predecessors, (1673), 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 20:53:49,886 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:53:49,887 INFO  L93              Difference]: Finished difference Result 66740 states and 92732 transitions.
[2023-04-01 20:53:49,887 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-04-01 20:53:49,888 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 278.8333333333333) internal successors, (1673), 4 states have internal predecessors, (1673), 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 1686
[2023-04-01 20:53:49,888 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:53:50,046 INFO  L225             Difference]: With dead ends: 66740
[2023-04-01 20:53:50,047 INFO  L226             Difference]: Without dead ends: 44590
[2023-04-01 20:53:50,104 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 20:53:50,109 INFO  L413           NwaCegarLoop]: 311 mSDtfsCounter, 11299 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 12444 mSolverCounterSat, 3374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s 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, 9.4s IncrementalHoareTripleChecker+Time
[2023-04-01 20:53:50,110 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11299 Valid, 1049 Invalid, 15818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3374 Valid, 12444 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time]
[2023-04-01 20:53:50,158 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 44590 states.
[2023-04-01 20:53:50,952 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 44590 to 42656.
[2023-04-01 20:53:50,998 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 20:53:51,086 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42656 states to 42656 states and 55505 transitions.
[2023-04-01 20:53:51,087 INFO  L78                 Accepts]: Start accepts. Automaton has 42656 states and 55505 transitions. Word has length 1686
[2023-04-01 20:53:51,088 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:53:51,088 INFO  L495      AbstractCegarLoop]: Abstraction has 42656 states and 55505 transitions.
[2023-04-01 20:53:51,089 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 278.8333333333333) internal successors, (1673), 4 states have internal predecessors, (1673), 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 20:53:51,089 INFO  L276                IsEmpty]: Start isEmpty. Operand 42656 states and 55505 transitions.
[2023-04-01 20:53:51,195 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1691
[2023-04-01 20:53:51,195 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:53:51,196 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 20:53:51,197 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-04-01 20:53:51,197 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:53:51,197 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:53:51,198 INFO  L85        PathProgramCache]: Analyzing trace with hash -2102574310, now seen corresponding path program 1 times
[2023-04-01 20:53:51,198 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:53:51,198 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834928750]
[2023-04-01 20:53:51,198 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:53:51,198 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:53:51,486 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:55,682 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:53:55,685 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:55,707 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:53:55,712 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:55,725 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 20:53:55,725 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:53:55,725 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834928750]
[2023-04-01 20:53:55,725 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834928750] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:53:55,726 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622106097]
[2023-04-01 20:53:55,726 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:53:55,726 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:53:55,726 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:53:55,733 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 20:53:55,756 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 20:53:56,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:53:56,313 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2110 conjuncts, 18 conjunts are in the unsatisfiable core
[2023-04-01 20:53:56,360 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:53:58,353 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 20:53:58,353 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-04-01 20:53:58,353 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [622106097] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:53:58,353 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-04-01 20:53:58,354 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6
[2023-04-01 20:53:58,354 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959867769]
[2023-04-01 20:53:58,354 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:53:58,356 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-04-01 20:53:58,356 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:53:58,357 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-04-01 20:53:58,358 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-04-01 20:53:58,358 INFO  L87              Difference]: Start difference. First operand 42656 states and 55505 transitions. Second operand  has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 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 20:54:03,612 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:54:03,612 INFO  L93              Difference]: Finished difference Result 85306 states and 111024 transitions.
[2023-04-01 20:54:03,613 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-04-01 20:54:03,613 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 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 1690
[2023-04-01 20:54:03,616 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:54:03,726 INFO  L225             Difference]: With dead ends: 85306
[2023-04-01 20:54:03,726 INFO  L226             Difference]: Without dead ends: 42656
[2023-04-01 20:54:03,785 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1705 GetRequests, 1701 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-04-01 20:54:03,786 INFO  L413           NwaCegarLoop]: 3074 mSDtfsCounter, 409 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 5736 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 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, 4.7s IncrementalHoareTripleChecker+Time
[2023-04-01 20:54:03,786 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 3444 Invalid, 6586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 5736 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2023-04-01 20:54:03,825 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42656 states.
[2023-04-01 20:54:04,401 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42656 to 42651.
[2023-04-01 20:54:04,444 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 20:54:04,525 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42651 states to 42651 states and 51688 transitions.
[2023-04-01 20:54:04,527 INFO  L78                 Accepts]: Start accepts. Automaton has 42651 states and 51688 transitions. Word has length 1690
[2023-04-01 20:54:04,528 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:54:04,529 INFO  L495      AbstractCegarLoop]: Abstraction has 42651 states and 51688 transitions.
[2023-04-01 20:54:04,529 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 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 20:54:04,529 INFO  L276                IsEmpty]: Start isEmpty. Operand 42651 states and 51688 transitions.
[2023-04-01 20:54:04,605 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1709
[2023-04-01 20:54:04,605 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:54:04,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:54:04,616 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 20:54:04,816 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 20:54:04,817 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:54:04,817 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:54:04,818 INFO  L85        PathProgramCache]: Analyzing trace with hash -1960570301, now seen corresponding path program 1 times
[2023-04-01 20:54:04,818 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:54:04,818 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730173173]
[2023-04-01 20:54:04,818 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:54:04,819 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:54:05,276 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:07,872 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:54:07,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:07,904 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:54:07,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:07,926 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2023-04-01 20:54:07,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:07,958 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 20:54:07,958 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:54:07,958 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730173173]
[2023-04-01 20:54:07,958 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730173173] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:54:07,959 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476460426]
[2023-04-01 20:54:07,959 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:54:07,959 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:54:07,960 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:54:07,961 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 20:54:07,968 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 20:54:08,456 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:08,463 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2184 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-04-01 20:54:08,484 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:54:08,567 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 20:54:08,567 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-04-01 20:54:08,725 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 20:54:08,725 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476460426] provided 0 perfect and 2 imperfect interpolant sequences
[2023-04-01 20:54:08,725 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-04-01 20:54:08,726 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 15
[2023-04-01 20:54:08,726 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678840700]
[2023-04-01 20:54:08,726 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-04-01 20:54:08,730 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2023-04-01 20:54:08,730 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:54:08,731 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2023-04-01 20:54:08,731 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210
[2023-04-01 20:54:08,732 INFO  L87              Difference]: Start difference. First operand 42651 states and 51688 transitions. Second operand  has 15 states, 15 states have (on average 115.6) internal successors, (1734), 13 states have internal predecessors, (1734), 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 20:54:47,172 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:54:47,173 INFO  L93              Difference]: Finished difference Result 181029 states and 234452 transitions.
[2023-04-01 20:54:47,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. 
[2023-04-01 20:54:47,174 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 115.6) internal successors, (1734), 13 states have internal predecessors, (1734), 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 1708
[2023-04-01 20:54:47,174 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:54:47,548 INFO  L225             Difference]: With dead ends: 181029
[2023-04-01 20:54:47,548 INFO  L226             Difference]: Without dead ends: 138384
[2023-04-01 20:54:47,766 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3550 GetRequests, 3453 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3398 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1614, Invalid=7892, Unknown=0, NotChecked=0, Total=9506
[2023-04-01 20:54:47,766 INFO  L413           NwaCegarLoop]: 450 mSDtfsCounter, 45044 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 39297 mSolverCounterSat, 18037 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45044 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 57334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 18037 IncrementalHoareTripleChecker+Valid, 39297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time
[2023-04-01 20:54:47,766 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45044 Valid, 2793 Invalid, 57334 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [18037 Valid, 39297 Invalid, 0 Unknown, 0 Unchecked, 34.4s Time]
[2023-04-01 20:54:47,856 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 138384 states.
[2023-04-01 20:54:49,899 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 138384 to 124857.
[2023-04-01 20:54:49,975 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 124857 states, 120784 states have (on average 1.0598175255000661) internal successors, (128009), 121376 states have internal predecessors, (128009), 538 states have call successors, (538), 538 states have call predecessors, (538), 3534 states have return successors, (13371), 2942 states have call predecessors, (13371), 537 states have call successors, (13371)
[2023-04-01 20:54:50,516 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124857 states to 124857 states and 141918 transitions.
[2023-04-01 20:54:50,517 INFO  L78                 Accepts]: Start accepts. Automaton has 124857 states and 141918 transitions. Word has length 1708
[2023-04-01 20:54:50,517 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:54:50,517 INFO  L495      AbstractCegarLoop]: Abstraction has 124857 states and 141918 transitions.
[2023-04-01 20:54:50,518 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 115.6) internal successors, (1734), 13 states have internal predecessors, (1734), 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 20:54:50,518 INFO  L276                IsEmpty]: Start isEmpty. Operand 124857 states and 141918 transitions.
[2023-04-01 20:54:50,834 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1829
[2023-04-01 20:54:50,834 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:54:50,836 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, 2, 2, 2, 2, 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]
[2023-04-01 20:54:50,848 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 20:54:51,044 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 20:54:51,045 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:54:51,045 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:54:51,045 INFO  L85        PathProgramCache]: Analyzing trace with hash 1893480975, now seen corresponding path program 1 times
[2023-04-01 20:54:51,045 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:54:51,046 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378656029]
[2023-04-01 20:54:51,046 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:54:51,046 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:54:51,429 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:53,839 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:54:53,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:53,862 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:54:53,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:53,900 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2023-04-01 20:54:53,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:53,927 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2023-04-01 20:54:53,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:53,947 INFO  L134       CoverageAnalysis]: Checked inductivity of 277 backedges. 151 proven. 70 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked.
[2023-04-01 20:54:53,947 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:54:53,947 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378656029]
[2023-04-01 20:54:53,947 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378656029] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:54:53,947 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64665089]
[2023-04-01 20:54:53,948 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:54:53,948 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:54:53,948 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:54:53,949 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 20:54:53,952 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 20:54:54,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:54:54,483 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2361 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-04-01 20:54:54,498 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:54:54,643 INFO  L134       CoverageAnalysis]: Checked inductivity of 277 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked.
[2023-04-01 20:54:54,643 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-04-01 20:54:54,643 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [64665089] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:54:54,644 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-04-01 20:54:54,644 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10
[2023-04-01 20:54:54,644 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790741266]
[2023-04-01 20:54:54,644 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:54:54,646 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-04-01 20:54:54,646 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:54:54,648 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-04-01 20:54:54,654 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2023-04-01 20:54:54,655 INFO  L87              Difference]: Start difference. First operand 124857 states and 141918 transitions. Second operand  has 5 states, 5 states have (on average 339.6) internal successors, (1698), 4 states have internal predecessors, (1698), 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 20:55:03,450 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:55:03,450 INFO  L93              Difference]: Finished difference Result 291666 states and 335721 transitions.
[2023-04-01 20:55:03,451 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-04-01 20:55:03,451 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 339.6) internal successors, (1698), 4 states have internal predecessors, (1698), 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 1828
[2023-04-01 20:55:03,451 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:55:04,099 INFO  L225             Difference]: With dead ends: 291666
[2023-04-01 20:55:04,099 INFO  L226             Difference]: Without dead ends: 166815
[2023-04-01 20:55:04,242 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1842 GetRequests, 1831 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 20:55:04,243 INFO  L413           NwaCegarLoop]: 591 mSDtfsCounter, 6580 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 9666 mSolverCounterSat, 3672 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6580 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 13338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3672 IncrementalHoareTripleChecker+Valid, 9666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time
[2023-04-01 20:55:04,243 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6580 Valid, 1442 Invalid, 13338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3672 Valid, 9666 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time]
[2023-04-01 20:55:04,368 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 166815 states.
[2023-04-01 20:55:06,646 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 166815 to 162500.
[2023-04-01 20:55:06,742 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 162500 states, 157611 states have (on average 1.0576165369168395) internal successors, (166692), 158332 states have internal predecessors, (166692), 706 states have call successors, (706), 706 states have call predecessors, (706), 4182 states have return successors, (18883), 3461 states have call predecessors, (18883), 705 states have call successors, (18883)
[2023-04-01 20:55:07,203 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 162500 states to 162500 states and 186281 transitions.
[2023-04-01 20:55:07,203 INFO  L78                 Accepts]: Start accepts. Automaton has 162500 states and 186281 transitions. Word has length 1828
[2023-04-01 20:55:07,204 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:55:07,204 INFO  L495      AbstractCegarLoop]: Abstraction has 162500 states and 186281 transitions.
[2023-04-01 20:55:07,204 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 339.6) internal successors, (1698), 4 states have internal predecessors, (1698), 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 20:55:07,204 INFO  L276                IsEmpty]: Start isEmpty. Operand 162500 states and 186281 transitions.
[2023-04-01 20:55:07,547 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1942
[2023-04-01 20:55:07,547 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:55:07,548 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, 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, 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]
[2023-04-01 20:55:07,554 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 20:55:07,748 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 20:55:07,749 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:55:07,749 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:55:07,750 INFO  L85        PathProgramCache]: Analyzing trace with hash 1324616592, now seen corresponding path program 1 times
[2023-04-01 20:55:07,750 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:55:07,750 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155197485]
[2023-04-01 20:55:07,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:55:07,750 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:55:08,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:10,826 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:55:10,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:10,844 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:55:10,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:10,868 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2023-04-01 20:55:10,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:10,878 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161
[2023-04-01 20:55:10,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:10,917 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235
[2023-04-01 20:55:10,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:10,967 INFO  L134       CoverageAnalysis]: Checked inductivity of 547 backedges. 391 proven. 8 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked.
[2023-04-01 20:55:10,968 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:55:10,968 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155197485]
[2023-04-01 20:55:10,968 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155197485] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:55:10,968 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357862033]
[2023-04-01 20:55:10,968 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:55:10,968 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:55:10,969 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:55:10,973 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 20:55:10,976 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 20:55:11,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:11,620 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-04-01 20:55:11,638 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:55:11,758 INFO  L134       CoverageAnalysis]: Checked inductivity of 547 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked.
[2023-04-01 20:55:11,759 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-04-01 20:55:11,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 547 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked.
[2023-04-01 20:55:11,951 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [357862033] provided 0 perfect and 2 imperfect interpolant sequences
[2023-04-01 20:55:11,952 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-04-01 20:55:11,952 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12
[2023-04-01 20:55:11,952 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769457642]
[2023-04-01 20:55:11,953 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-04-01 20:55:11,956 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-04-01 20:55:11,956 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:55:11,958 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-04-01 20:55:11,958 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132
[2023-04-01 20:55:11,958 INFO  L87              Difference]: Start difference. First operand 162500 states and 186281 transitions. Second operand  has 12 states, 12 states have (on average 159.08333333333334) internal successors, (1909), 10 states have internal predecessors, (1909), 5 states have call successors, (17), 7 states have call predecessors, (17), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10)
[2023-04-01 20:55:29,395 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:55:29,395 INFO  L93              Difference]: Finished difference Result 366981 states and 423247 transitions.
[2023-04-01 20:55:29,395 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-04-01 20:55:29,396 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 159.08333333333334) internal successors, (1909), 10 states have internal predecessors, (1909), 5 states have call successors, (17), 7 states have call predecessors, (17), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 1941
[2023-04-01 20:55:29,396 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:55:30,065 INFO  L225             Difference]: With dead ends: 366981
[2023-04-01 20:55:30,065 INFO  L226             Difference]: Without dead ends: 204487
[2023-04-01 20:55:30,185 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3918 GetRequests, 3897 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462
[2023-04-01 20:55:30,185 INFO  L413           NwaCegarLoop]: 338 mSDtfsCounter, 12066 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 26557 mSolverCounterSat, 3245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12066 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 29802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3245 IncrementalHoareTripleChecker+Valid, 26557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time
[2023-04-01 20:55:30,185 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12066 Valid, 1986 Invalid, 29802 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3245 Valid, 26557 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time]
[2023-04-01 20:55:30,337 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 204487 states.
[2023-04-01 20:55:33,050 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 204487 to 200040.
[2023-04-01 20:55:33,165 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 200040 states, 194374 states have (on average 1.0379165937831192) internal successors, (201744), 195201 states have internal predecessors, (201744), 874 states have call successors, (874), 874 states have call predecessors, (874), 4791 states have return successors, (17973), 3964 states have call predecessors, (17973), 873 states have call successors, (17973)
[2023-04-01 20:55:33,823 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 200040 states to 200040 states and 220591 transitions.
[2023-04-01 20:55:33,824 INFO  L78                 Accepts]: Start accepts. Automaton has 200040 states and 220591 transitions. Word has length 1941
[2023-04-01 20:55:33,825 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:55:33,825 INFO  L495      AbstractCegarLoop]: Abstraction has 200040 states and 220591 transitions.
[2023-04-01 20:55:33,825 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 159.08333333333334) internal successors, (1909), 10 states have internal predecessors, (1909), 5 states have call successors, (17), 7 states have call predecessors, (17), 5 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10)
[2023-04-01 20:55:33,825 INFO  L276                IsEmpty]: Start isEmpty. Operand 200040 states and 220591 transitions.
[2023-04-01 20:55:34,023 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2140
[2023-04-01 20:55:34,023 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:55:34,024 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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, 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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]
[2023-04-01 20:55:34,030 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-04-01 20:55:34,224 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 20:55:34,225 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:55:34,225 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:55:34,225 INFO  L85        PathProgramCache]: Analyzing trace with hash -1922028380, now seen corresponding path program 1 times
[2023-04-01 20:55:34,225 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:55:34,225 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313011538]
[2023-04-01 20:55:34,226 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:55:34,226 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:55:34,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:37,499 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:55:37,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:37,529 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:55:37,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:37,556 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2023-04-01 20:55:37,559 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:37,564 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161
[2023-04-01 20:55:37,573 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:37,604 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235
[2023-04-01 20:55:37,631 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:37,720 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406
[2023-04-01 20:55:37,725 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:37,730 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433
[2023-04-01 20:55:37,738 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:37,751 INFO  L134       CoverageAnalysis]: Checked inductivity of 1145 backedges. 496 proven. 17 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked.
[2023-04-01 20:55:37,751 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:55:37,751 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313011538]
[2023-04-01 20:55:37,751 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313011538] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:55:37,752 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630438552]
[2023-04-01 20:55:37,752 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:55:37,752 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:55:37,752 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:55:37,757 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 20:55:37,760 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 20:55:38,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:38,423 INFO  L262         TraceCheckSpWp]: Trace formula consists of 2831 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-04-01 20:55:38,439 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:55:38,472 INFO  L134       CoverageAnalysis]: Checked inductivity of 1145 backedges. 673 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked.
[2023-04-01 20:55:38,472 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-04-01 20:55:38,472 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [630438552] provided 1 perfect and 0 imperfect interpolant sequences
[2023-04-01 20:55:38,472 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-04-01 20:55:38,473 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9
[2023-04-01 20:55:38,473 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558580411]
[2023-04-01 20:55:38,473 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-04-01 20:55:38,475 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-04-01 20:55:38,475 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:55:38,477 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-04-01 20:55:38,477 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2023-04-01 20:55:38,477 INFO  L87              Difference]: Start difference. First operand 200040 states and 220591 transitions. Second operand  has 3 states, 3 states have (on average 611.0) internal successors, (1833), 3 states have internal predecessors, (1833), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2023-04-01 20:55:44,768 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-04-01 20:55:44,768 INFO  L93              Difference]: Finished difference Result 400015 states and 441411 transitions.
[2023-04-01 20:55:44,768 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-04-01 20:55:44,769 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 611.0) internal successors, (1833), 3 states have internal predecessors, (1833), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 2139
[2023-04-01 20:55:44,769 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-04-01 20:55:45,325 INFO  L225             Difference]: With dead ends: 400015
[2023-04-01 20:55:45,325 INFO  L226             Difference]: Without dead ends: 199981
[2023-04-01 20:55:45,611 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2160 GetRequests, 2153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2023-04-01 20:55:45,612 INFO  L413           NwaCegarLoop]: 3005 mSDtfsCounter, 2110 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 5439 mSolverCounterSat, 678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 6117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 5439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2023-04-01 20:55:45,612 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2110 Valid, 3312 Invalid, 6117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [678 Valid, 5439 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2023-04-01 20:55:45,755 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 199981 states.
[2023-04-01 20:55:48,278 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 199981 to 199979.
[2023-04-01 20:55:48,380 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 199979 states, 194333 states have (on average 1.0321509985437367) internal successors, (200581), 195155 states have internal predecessors, (200581), 874 states have call successors, (874), 874 states have call predecessors, (874), 4771 states have return successors, (16308), 3949 states have call predecessors, (16308), 873 states have call successors, (16308)
[2023-04-01 20:55:48,974 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 199979 states to 199979 states and 217763 transitions.
[2023-04-01 20:55:48,975 INFO  L78                 Accepts]: Start accepts. Automaton has 199979 states and 217763 transitions. Word has length 2139
[2023-04-01 20:55:48,976 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-04-01 20:55:48,976 INFO  L495      AbstractCegarLoop]: Abstraction has 199979 states and 217763 transitions.
[2023-04-01 20:55:48,977 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 611.0) internal successors, (1833), 3 states have internal predecessors, (1833), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)
[2023-04-01 20:55:48,977 INFO  L276                IsEmpty]: Start isEmpty. Operand 199979 states and 217763 transitions.
[2023-04-01 20:55:49,166 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2450
[2023-04-01 20:55:49,166 INFO  L187           NwaCegarLoop]: Found error trace
[2023-04-01 20:55:49,167 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2023-04-01 20:55:49,174 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 20:55:49,368 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 20:55:49,368 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-04-01 20:55:49,368 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-04-01 20:55:49,369 INFO  L85        PathProgramCache]: Analyzing trace with hash 1977172019, now seen corresponding path program 1 times
[2023-04-01 20:55:49,369 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-04-01 20:55:49,369 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497875437]
[2023-04-01 20:55:49,369 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:55:49,369 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-04-01 20:55:49,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:52,424 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2023-04-01 20:55:52,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:52,437 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-04-01 20:55:52,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:52,460 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2023-04-01 20:55:52,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:52,468 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161
[2023-04-01 20:55:52,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:52,491 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235
[2023-04-01 20:55:52,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:52,526 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406
[2023-04-01 20:55:52,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:52,600 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548
[2023-04-01 20:55:52,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:52,864 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221
[2023-04-01 20:55:52,869 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:52,891 INFO  L134       CoverageAnalysis]: Checked inductivity of 2044 backedges. 1306 proven. 16 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked.
[2023-04-01 20:55:52,892 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-04-01 20:55:52,892 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497875437]
[2023-04-01 20:55:52,892 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497875437] provided 0 perfect and 1 imperfect interpolant sequences
[2023-04-01 20:55:52,892 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045131568]
[2023-04-01 20:55:52,892 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-04-01 20:55:52,892 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-04-01 20:55:52,893 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-04-01 20:55:52,894 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 20:55:52,915 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 20:55:53,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-04-01 20:55:53,600 INFO  L262         TraceCheckSpWp]: Trace formula consists of 3176 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-04-01 20:55:53,618 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-04-01 20:55:53,923 INFO  L134       CoverageAnalysis]: Checked inductivity of 2044 backedges. 1304 proven. 2 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked.
[2023-04-01 20:55:53,924 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-04-01 20:55:54,697 INFO  L134       CoverageAnalysis]: Checked inductivity of 2044 backedges. 1304 proven. 2 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked.
[2023-04-01 20:55:54,698 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045131568] provided 0 perfect and 2 imperfect interpolant sequences
[2023-04-01 20:55:54,698 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-04-01 20:55:54,699 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 12
[2023-04-01 20:55:54,701 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457412175]
[2023-04-01 20:55:54,701 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-04-01 20:55:54,705 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-04-01 20:55:54,705 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-04-01 20:55:54,707 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-04-01 20:55:54,707 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2023-04-01 20:55:54,708 INFO  L87              Difference]: Start difference. First operand 199979 states and 217763 transitions. Second operand  has 12 states, 12 states have (on average 211.83333333333334) internal successors, (2542), 10 states have internal predecessors, (2542), 8 states have call successors, (20), 6 states have call predecessors, (20), 5 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11)