/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/Problem06_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 21:17:14,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 21:17:14,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 21:17:14,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-01 21:17:14,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 21:17:14,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 21:17:14,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 21:17:14,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 21:17:14,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 21:17:14,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 21:17:14,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 21:17:14,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 21:17:14,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 21:17:14,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 21:17:14,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 21:17:14,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 21:17:14,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 21:17:14,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 21:17:14,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 21:17:14,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 21:17:14,387 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 21:17:14,404 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 21:17:14,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 21:17:14,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 21:17:14,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 21:17:14,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 21:17:14,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 21:17:14,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 21:17:14,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 21:17:14,406 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 21:17:14,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 21:17:14,407 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 21:17:14,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 21:17:14,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 21:17:14,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 21:17:14,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 21:17:14,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 21:17:14,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 21:17:14,408 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 21:17:14,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 21:17:14,408 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 21:17:14,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 21:17:14,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 21:17:14,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 21:17:14,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 21:17:14,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 21:17:14,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 21:17:14,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 21:17:14,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 21:17:14,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 21:17:14,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 21:17:14,410 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 21:17:14,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 21:17:14,410 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 21:17:14,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 21:17:14,410 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 21:17:14,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 21:17:14,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 21:17:14,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 21:17:14,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 21:17:14,640 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 21:17:14,640 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 21:17:14,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem06_label52.c [2023-04-01 21:17:15,838 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 21:17:16,384 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 21:17:16,385 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem06_label52.c [2023-04-01 21:17:16,431 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a89bdb6d/c5bd3cae7f1442f59290d6208b0503ab/FLAGc5acb1dd2 [2023-04-01 21:17:16,445 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a89bdb6d/c5bd3cae7f1442f59290d6208b0503ab [2023-04-01 21:17:16,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 21:17:16,449 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 21:17:16,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 21:17:16,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 21:17:16,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 21:17:16,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:17:16" (1/1) ... [2023-04-01 21:17:16,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e1e4e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:16, skipping insertion in model container [2023-04-01 21:17:16,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:17:16" (1/1) ... [2023-04-01 21:17:16,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 21:17:16,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 21:17:18,029 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/Problem06_label52.c[337051,337064] [2023-04-01 21:17:18,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 21:17:18,063 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 21:17:18,748 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/Problem06_label52.c[337051,337064] [2023-04-01 21:17:18,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 21:17:18,839 INFO L208 MainTranslator]: Completed translation [2023-04-01 21:17:18,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:18 WrapperNode [2023-04-01 21:17:18,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 21:17:18,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 21:17:18,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 21:17:18,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 21:17:18,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:18" (1/1) ... [2023-04-01 21:17:18,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:18" (1/1) ... [2023-04-01 21:17:18,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:18" (1/1) ... [2023-04-01 21:17:18,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:18" (1/1) ... [2023-04-01 21:17:19,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:18" (1/1) ... [2023-04-01 21:17:19,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:18" (1/1) ... [2023-04-01 21:17:19,158 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:18" (1/1) ... [2023-04-01 21:17:19,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:18" (1/1) ... [2023-04-01 21:17:19,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 21:17:19,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 21:17:19,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 21:17:19,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 21:17:19,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:18" (1/1) ... [2023-04-01 21:17:19,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 21:17:19,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 21:17:19,270 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 21:17:19,295 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 21:17:19,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 21:17:19,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 21:17:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 21:17:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 21:17:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-01 21:17:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-01 21:17:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-01 21:17:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-01 21:17:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 21:17:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 21:17:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-01 21:17:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-01 21:17:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-01 21:17:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-01 21:17:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 21:17:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 21:17:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 21:17:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 21:17:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 21:17:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 21:17:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 21:17:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 21:17:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 21:17:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 21:17:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 21:17:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 21:17:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 21:17:19,537 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 21:17:19,538 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 21:17:24,795 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 21:17:24,817 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 21:17:24,817 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 21:17:24,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:17:24 BoogieIcfgContainer [2023-04-01 21:17:24,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 21:17:24,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 21:17:24,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 21:17:24,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 21:17:24,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 09:17:16" (1/3) ... [2023-04-01 21:17:24,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d079d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:17:24, skipping insertion in model container [2023-04-01 21:17:24,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:17:18" (2/3) ... [2023-04-01 21:17:24,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d079d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:17:24, skipping insertion in model container [2023-04-01 21:17:24,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:17:24" (3/3) ... [2023-04-01 21:17:24,832 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label52.c [2023-04-01 21:17:24,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 21:17:24,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 21:17:24,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 21:17:24,936 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;@20bf4be4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 21:17:24,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 21:17:24,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 1315 states, 1299 states have (on average 1.8498845265588915) internal successors, (2403), 1300 states have internal predecessors, (2403), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-04-01 21:17:24,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 999 [2023-04-01 21:17:24,999 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:17:25,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:17:25,001 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:17:25,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:17:25,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1435547489, now seen corresponding path program 1 times [2023-04-01 21:17:25,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:17:25,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524584376] [2023-04-01 21:17:25,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:17:25,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:17:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:17:30,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:17:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:17:30,390 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 21:17:30,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:17:30,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524584376] [2023-04-01 21:17:30,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524584376] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 21:17:30,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 21:17:30,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 21:17:30,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304531770] [2023-04-01 21:17:30,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 21:17:30,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 21:17:30,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:17:30,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 21:17:30,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 21:17:30,447 INFO L87 Difference]: Start difference. First operand has 1315 states, 1299 states have (on average 1.8498845265588915) internal successors, (2403), 1300 states have internal predecessors, (2403), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 330.0) internal successors, (990), 2 states have internal predecessors, (990), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 21:17:38,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:17:38,646 INFO L93 Difference]: Finished difference Result 3768 states and 7009 transitions. [2023-04-01 21:17:38,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 21:17:38,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 330.0) internal successors, (990), 2 states have internal predecessors, (990), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 998 [2023-04-01 21:17:38,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:17:38,684 INFO L225 Difference]: With dead ends: 3768 [2023-04-01 21:17:38,685 INFO L226 Difference]: Without dead ends: 2389 [2023-04-01 21:17:38,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-01 21:17:38,696 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 2827 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4977 mSolverCounterSat, 1107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2827 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 6084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1107 IncrementalHoareTripleChecker+Valid, 4977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-04-01 21:17:38,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2827 Valid, 292 Invalid, 6084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1107 Valid, 4977 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-04-01 21:17:38,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2023-04-01 21:17:38,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 2370. [2023-04-01 21:17:38,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 2336 states have (on average 1.6849315068493151) internal successors, (3936), 2338 states have internal predecessors, (3936), 12 states have call successors, (12), 12 states have call predecessors, (12), 21 states have return successors, (31), 19 states have call predecessors, (31), 11 states have call successors, (31) [2023-04-01 21:17:38,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 3979 transitions. [2023-04-01 21:17:38,867 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 3979 transitions. Word has length 998 [2023-04-01 21:17:38,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:17:38,871 INFO L495 AbstractCegarLoop]: Abstraction has 2370 states and 3979 transitions. [2023-04-01 21:17:38,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 330.0) internal successors, (990), 2 states have internal predecessors, (990), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 21:17:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 3979 transitions. [2023-04-01 21:17:38,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1007 [2023-04-01 21:17:38,905 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:17:38,906 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 21:17:38,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 21:17:38,906 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:17:38,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:17:38,907 INFO L85 PathProgramCache]: Analyzing trace with hash 651120608, now seen corresponding path program 1 times [2023-04-01 21:17:38,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:17:38,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369380913] [2023-04-01 21:17:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:17:38,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:17:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:17:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:17:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:17:41,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:17:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:17:41,510 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:17:41,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:17:41,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369380913] [2023-04-01 21:17:41,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369380913] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 21:17:41,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 21:17:41,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 21:17:41,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221678122] [2023-04-01 21:17:41,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 21:17:41,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 21:17:41,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:17:41,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 21:17:41,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 21:17:41,519 INFO L87 Difference]: Start difference. First operand 2370 states and 3979 transitions. Second operand has 8 states, 7 states have (on average 142.28571428571428) internal successors, (996), 5 states have internal predecessors, (996), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 21:17:53,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:17:53,540 INFO L93 Difference]: Finished difference Result 9476 states and 16076 transitions. [2023-04-01 21:17:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-01 21:17:53,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 142.28571428571428) internal successors, (996), 5 states have internal predecessors, (996), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 1006 [2023-04-01 21:17:53,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:17:53,572 INFO L225 Difference]: With dead ends: 9476 [2023-04-01 21:17:53,573 INFO L226 Difference]: Without dead ends: 7112 [2023-04-01 21:17:53,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-04-01 21:17:53,580 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 10588 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 11413 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10588 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 11876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 11413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-04-01 21:17:53,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10588 Valid, 874 Invalid, 11876 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [463 Valid, 11413 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-04-01 21:17:53,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7112 states. [2023-04-01 21:17:53,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7112 to 7073. [2023-04-01 21:17:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7073 states, 6960 states have (on average 1.6798850574712643) internal successors, (11692), 6970 states have internal predecessors, (11692), 32 states have call successors, (32), 32 states have call predecessors, (32), 80 states have return successors, (219), 70 states have call predecessors, (219), 31 states have call successors, (219) [2023-04-01 21:17:53,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7073 states to 7073 states and 11943 transitions. [2023-04-01 21:17:53,842 INFO L78 Accepts]: Start accepts. Automaton has 7073 states and 11943 transitions. Word has length 1006 [2023-04-01 21:17:53,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:17:53,842 INFO L495 AbstractCegarLoop]: Abstraction has 7073 states and 11943 transitions. [2023-04-01 21:17:53,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 142.28571428571428) internal successors, (996), 5 states have internal predecessors, (996), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 21:17:53,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7073 states and 11943 transitions. [2023-04-01 21:17:53,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1015 [2023-04-01 21:17:53,868 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:17:53,869 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 21:17:53,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 21:17:53,869 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:17:53,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:17:53,870 INFO L85 PathProgramCache]: Analyzing trace with hash 801465296, now seen corresponding path program 1 times [2023-04-01 21:17:53,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:17:53,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253710876] [2023-04-01 21:17:53,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:17:53,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:17:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:17:56,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:17:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:17:56,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:17:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:17:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:17:56,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:17:56,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253710876] [2023-04-01 21:17:56,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253710876] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 21:17:56,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 21:17:56,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 21:17:56,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774280584] [2023-04-01 21:17:56,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 21:17:56,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 21:17:56,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:17:56,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 21:17:56,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 21:17:56,224 INFO L87 Difference]: Start difference. First operand 7073 states and 11943 transitions. Second operand has 8 states, 7 states have (on average 143.42857142857142) internal successors, (1004), 5 states have internal predecessors, (1004), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 21:18:04,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:18:04,286 INFO L93 Difference]: Finished difference Result 20961 states and 36383 transitions. [2023-04-01 21:18:04,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-01 21:18:04,288 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 143.42857142857142) internal successors, (1004), 5 states have internal predecessors, (1004), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 1014 [2023-04-01 21:18:04,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:18:04,363 INFO L225 Difference]: With dead ends: 20961 [2023-04-01 21:18:04,363 INFO L226 Difference]: Without dead ends: 13894 [2023-04-01 21:18:04,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-04-01 21:18:04,387 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 5950 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 9179 mSolverCounterSat, 1386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5950 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 10565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1386 IncrementalHoareTripleChecker+Valid, 9179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-04-01 21:18:04,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5950 Valid, 817 Invalid, 10565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1386 Valid, 9179 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-04-01 21:18:04,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13894 states. [2023-04-01 21:18:04,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13894 to 13568. [2023-04-01 21:18:04,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13568 states, 13264 states have (on average 1.6734770808202655) internal successors, (22197), 13311 states have internal predecessors, (22197), 62 states have call successors, (62), 62 states have call predecessors, (62), 241 states have return successors, (987), 194 states have call predecessors, (987), 61 states have call successors, (987) [2023-04-01 21:18:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13568 states to 13568 states and 23246 transitions. [2023-04-01 21:18:04,808 INFO L78 Accepts]: Start accepts. Automaton has 13568 states and 23246 transitions. Word has length 1014 [2023-04-01 21:18:04,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:18:04,808 INFO L495 AbstractCegarLoop]: Abstraction has 13568 states and 23246 transitions. [2023-04-01 21:18:04,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 143.42857142857142) internal successors, (1004), 5 states have internal predecessors, (1004), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 21:18:04,809 INFO L276 IsEmpty]: Start isEmpty. Operand 13568 states and 23246 transitions. [2023-04-01 21:18:04,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2023-04-01 21:18:04,853 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:18:04,853 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 21:18:04,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 21:18:04,854 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:18:04,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:18:04,855 INFO L85 PathProgramCache]: Analyzing trace with hash 756933889, now seen corresponding path program 1 times [2023-04-01 21:18:04,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:18:04,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850292189] [2023-04-01 21:18:04,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:18:04,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:18:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:06,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:18:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:06,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:18:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:06,853 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:18:06,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:18:06,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850292189] [2023-04-01 21:18:06,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850292189] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 21:18:06,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 21:18:06,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 21:18:06,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675485583] [2023-04-01 21:18:06,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 21:18:06,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 21:18:06,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:18:06,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 21:18:06,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 21:18:06,856 INFO L87 Difference]: Start difference. First operand 13568 states and 23246 transitions. Second operand has 8 states, 7 states have (on average 144.0) internal successors, (1008), 5 states have internal predecessors, (1008), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 21:18:18,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:18:18,743 INFO L93 Difference]: Finished difference Result 54131 states and 101005 transitions. [2023-04-01 21:18:18,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-01 21:18:18,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 144.0) internal successors, (1008), 5 states have internal predecessors, (1008), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 1018 [2023-04-01 21:18:18,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:18:18,920 INFO L225 Difference]: With dead ends: 54131 [2023-04-01 21:18:18,920 INFO L226 Difference]: Without dead ends: 40569 [2023-04-01 21:18:18,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-04-01 21:18:18,970 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 6596 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 11416 mSolverCounterSat, 2351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6596 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 13767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2351 IncrementalHoareTripleChecker+Valid, 11416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-04-01 21:18:18,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6596 Valid, 883 Invalid, 13767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2351 Valid, 11416 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2023-04-01 21:18:19,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40569 states. [2023-04-01 21:18:20,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40569 to 40116. [2023-04-01 21:18:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40116 states, 38851 states have (on average 1.5218141103189107) internal successors, (59124), 39110 states have internal predecessors, (59124), 182 states have call successors, (182), 182 states have call predecessors, (182), 1082 states have return successors, (8521), 823 states have call predecessors, (8521), 181 states have call successors, (8521) [2023-04-01 21:18:20,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40116 states to 40116 states and 67827 transitions. [2023-04-01 21:18:20,292 INFO L78 Accepts]: Start accepts. Automaton has 40116 states and 67827 transitions. Word has length 1018 [2023-04-01 21:18:20,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:18:20,292 INFO L495 AbstractCegarLoop]: Abstraction has 40116 states and 67827 transitions. [2023-04-01 21:18:20,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 144.0) internal successors, (1008), 5 states have internal predecessors, (1008), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 21:18:20,293 INFO L276 IsEmpty]: Start isEmpty. Operand 40116 states and 67827 transitions. [2023-04-01 21:18:20,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2023-04-01 21:18:20,434 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:18:20,434 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-01 21:18:20,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 21:18:20,435 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:18:20,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:18:20,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1232962279, now seen corresponding path program 1 times [2023-04-01 21:18:20,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:18:20,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269467340] [2023-04-01 21:18:20,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:18:20,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:18:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:24,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:18:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:25,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:18:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:25,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-01 21:18:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:25,150 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-01 21:18:25,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:18:25,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269467340] [2023-04-01 21:18:25,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269467340] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 21:18:25,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918557047] [2023-04-01 21:18:25,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:18:25,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 21:18:25,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 21:18:25,160 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 21:18:25,164 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 21:18:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:25,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 2363 conjuncts, 12 conjunts are in the unsatisfiable core [2023-04-01 21:18:25,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 21:18:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-01 21:18:27,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 21:18:27,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918557047] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 21:18:27,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 21:18:27,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-04-01 21:18:27,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642312201] [2023-04-01 21:18:27,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 21:18:27,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 21:18:27,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:18:27,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 21:18:27,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-01 21:18:27,112 INFO L87 Difference]: Start difference. First operand 40116 states and 67827 transitions. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 21:18:32,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:18:32,093 INFO L93 Difference]: Finished difference Result 118305 states and 212477 transitions. [2023-04-01 21:18:32,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 21:18:32,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 1036 [2023-04-01 21:18:32,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:18:32,477 INFO L225 Difference]: With dead ends: 118305 [2023-04-01 21:18:32,477 INFO L226 Difference]: Without dead ends: 78195 [2023-04-01 21:18:32,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1045 GetRequests, 1038 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-01 21:18:32,578 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 470 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 3238 mSolverCounterSat, 886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 4124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 886 IncrementalHoareTripleChecker+Valid, 3238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-01 21:18:32,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 717 Invalid, 4124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [886 Valid, 3238 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-01 21:18:32,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78195 states. [2023-04-01 21:18:34,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78195 to 78086. [2023-04-01 21:18:34,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78086 states, 75930 states have (on average 1.4901488212827605) internal successors, (113147), 76335 states have internal predecessors, (113147), 362 states have call successors, (362), 362 states have call predecessors, (362), 1793 states have return successors, (24172), 1388 states have call predecessors, (24172), 361 states have call successors, (24172) [2023-04-01 21:18:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78086 states to 78086 states and 137681 transitions. [2023-04-01 21:18:35,501 INFO L78 Accepts]: Start accepts. Automaton has 78086 states and 137681 transitions. Word has length 1036 [2023-04-01 21:18:35,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:18:35,503 INFO L495 AbstractCegarLoop]: Abstraction has 78086 states and 137681 transitions. [2023-04-01 21:18:35,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 21:18:35,504 INFO L276 IsEmpty]: Start isEmpty. Operand 78086 states and 137681 transitions. [2023-04-01 21:18:35,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2023-04-01 21:18:35,963 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:18:35,965 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:18:35,975 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 21:18:36,175 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 21:18:36,176 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:18:36,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:18:36,177 INFO L85 PathProgramCache]: Analyzing trace with hash 404898611, now seen corresponding path program 1 times [2023-04-01 21:18:36,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:18:36,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826655512] [2023-04-01 21:18:36,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:18:36,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:18:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:38,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:18:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:18:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:38,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-01 21:18:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:38,238 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-01 21:18:38,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:18:38,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826655512] [2023-04-01 21:18:38,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826655512] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 21:18:38,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780476176] [2023-04-01 21:18:38,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:18:38,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 21:18:38,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 21:18:38,241 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 21:18:38,245 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 21:18:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:18:38,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 2414 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 21:18:38,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 21:18:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:18:38,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 21:18:39,195 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:18:39,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780476176] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 21:18:39,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 21:18:39,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2023-04-01 21:18:39,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52802934] [2023-04-01 21:18:39,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 21:18:39,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-01 21:18:39,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:18:39,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-01 21:18:39,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-01 21:18:39,201 INFO L87 Difference]: Start difference. First operand 78086 states and 137681 transitions. Second operand has 11 states, 11 states have (on average 105.27272727272727) internal successors, (1158), 9 states have internal predecessors, (1158), 4 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 21:18:58,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:18:58,559 INFO L93 Difference]: Finished difference Result 316802 states and 705869 transitions. [2023-04-01 21:18:58,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-04-01 21:18:58,560 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 105.27272727272727) internal successors, (1158), 9 states have internal predecessors, (1158), 4 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 1073 [2023-04-01 21:18:58,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:19:00,573 INFO L225 Difference]: With dead ends: 316802 [2023-04-01 21:19:00,574 INFO L226 Difference]: Without dead ends: 238722 [2023-04-01 21:19:00,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2203 GetRequests, 2154 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=448, Invalid=1904, Unknown=0, NotChecked=0, Total=2352 [2023-04-01 21:19:00,812 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 17380 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 10361 mSolverCounterSat, 7493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17380 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 17854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7493 IncrementalHoareTripleChecker+Valid, 10361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-04-01 21:19:00,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17380 Valid, 1204 Invalid, 17854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7493 Valid, 10361 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2023-04-01 21:19:00,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238722 states. [2023-04-01 21:19:08,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238722 to 236558. [2023-04-01 21:19:08,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236558 states, 227960 states have (on average 1.2923890156167748) internal successors, (294613), 230162 states have internal predecessors, (294613), 1077 states have call successors, (1077), 1077 states have call predecessors, (1077), 7520 states have return successors, (113370), 5318 states have call predecessors, (113370), 1076 states have call successors, (113370) [2023-04-01 21:19:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236558 states to 236558 states and 409060 transitions. [2023-04-01 21:19:10,042 INFO L78 Accepts]: Start accepts. Automaton has 236558 states and 409060 transitions. Word has length 1073 [2023-04-01 21:19:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:19:10,043 INFO L495 AbstractCegarLoop]: Abstraction has 236558 states and 409060 transitions. [2023-04-01 21:19:10,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.27272727272727) internal successors, (1158), 9 states have internal predecessors, (1158), 4 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 21:19:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 236558 states and 409060 transitions. [2023-04-01 21:19:11,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2023-04-01 21:19:11,087 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:19:11,088 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2023-04-01 21:19:11,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-04-01 21:19:11,288 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 21:19:11,289 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:19:11,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:19:11,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1958323294, now seen corresponding path program 1 times [2023-04-01 21:19:11,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:19:11,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491658983] [2023-04-01 21:19:11,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:19:11,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:19:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:19:15,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:19:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:19:15,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:19:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:19:15,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-01 21:19:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:19:15,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-01 21:19:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:19:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-01 21:19:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:19:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 72 proven. 24 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-04-01 21:19:15,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:19:15,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491658983] [2023-04-01 21:19:15,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491658983] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 21:19:15,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243398490] [2023-04-01 21:19:15,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:19:15,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 21:19:15,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 21:19:15,728 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 21:19:15,755 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 21:19:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:19:16,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 2724 conjuncts, 12 conjunts are in the unsatisfiable core [2023-04-01 21:19:16,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 21:19:17,457 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-04-01 21:19:17,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 21:19:17,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243398490] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 21:19:17,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 21:19:17,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-04-01 21:19:17,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996380737] [2023-04-01 21:19:17,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 21:19:17,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 21:19:17,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:19:17,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 21:19:17,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-01 21:19:17,462 INFO L87 Difference]: Start difference. First operand 236558 states and 409060 transitions. Second operand has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 21:19:27,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:19:27,024 INFO L93 Difference]: Finished difference Result 583919 states and 1033754 transitions. [2023-04-01 21:19:27,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 21:19:27,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 1084 [2023-04-01 21:19:27,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:19:29,127 INFO L225 Difference]: With dead ends: 583919 [2023-04-01 21:19:29,127 INFO L226 Difference]: Without dead ends: 347367 [2023-04-01 21:19:29,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1097 GetRequests, 1090 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-01 21:19:29,533 INFO L413 NwaCegarLoop]: 2419 mSDtfsCounter, 121 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 3659 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 4279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 3659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-04-01 21:19:29,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 2593 Invalid, 4279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 3659 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-04-01 21:19:29,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347367 states. [2023-04-01 21:19:38,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347367 to 347137. [2023-04-01 21:19:38,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347137 states, 336631 states have (on average 1.2496769459734842) internal successors, (420680), 339186 states have internal predecessors, (420680), 1612 states have call successors, (1612), 1612 states have call predecessors, (1612), 8893 states have return successors, (156599), 6338 states have call predecessors, (156599), 1611 states have call successors, (156599) [2023-04-01 21:19:41,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347137 states to 347137 states and 578891 transitions. [2023-04-01 21:19:41,552 INFO L78 Accepts]: Start accepts. Automaton has 347137 states and 578891 transitions. Word has length 1084 [2023-04-01 21:19:41,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:19:41,553 INFO L495 AbstractCegarLoop]: Abstraction has 347137 states and 578891 transitions. [2023-04-01 21:19:41,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 21:19:41,554 INFO L276 IsEmpty]: Start isEmpty. Operand 347137 states and 578891 transitions. [2023-04-01 21:19:43,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1101 [2023-04-01 21:19:43,649 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:19:43,650 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 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] [2023-04-01 21:19:43,662 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 21:19:43,862 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 21:19:43,863 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:19:43,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:19:43,864 INFO L85 PathProgramCache]: Analyzing trace with hash -956501940, now seen corresponding path program 1 times [2023-04-01 21:19:43,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:19:43,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384242087] [2023-04-01 21:19:43,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:19:43,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:19:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat