/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/Problem04_label12.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 20:37:10,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 20:37:10,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 20:37:10,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-01 20:37:10,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 20:37:10,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 20:37:10,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 20:37:10,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-01 20:37:10,966 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 20:37:10,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 20:37:10,966 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 20:37:10,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 20:37:10,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 20:37:10,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 20:37:10,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 20:37:10,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 20:37:10,968 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 20:37:10,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 20:37:10,969 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 20:37:10,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 20:37:10,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 20:37:10,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 20:37:10,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 20:37:10,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 20:37:10,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 20:37:10,970 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 20:37:10,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 20:37:10,970 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 20:37:10,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 20:37:10,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 20:37:10,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 20:37:10,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 20:37:10,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 20:37:10,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 20:37:10,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 20:37:10,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 20:37:10,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 20:37:10,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 20:37:10,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 20:37:10,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 20:37:10,971 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 20:37:10,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 20:37:10,971 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 20:37:10,971 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 20:37:11,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 20:37:11,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 20:37:11,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 20:37:11,180 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 20:37:11,180 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 20:37:11,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem04_label12.c [2023-04-01 20:37:12,249 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 20:37:12,649 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 20:37:12,650 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label12.c [2023-04-01 20:37:12,674 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b75d4df/9f82f7694e1440dd8a666bf62decaeed/FLAGbc15c7e1e [2023-04-01 20:37:12,689 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97b75d4df/9f82f7694e1440dd8a666bf62decaeed [2023-04-01 20:37:12,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 20:37:12,692 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 20:37:12,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 20:37:12,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 20:37:12,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 20:37:12,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:37:12" (1/1) ... [2023-04-01 20:37:12,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68566346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:12, skipping insertion in model container [2023-04-01 20:37:12,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 08:37:12" (1/1) ... [2023-04-01 20:37:12,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 20:37:12,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 20:37:13,506 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/Problem04_label12.c[176369,176382] [2023-04-01 20:37:13,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 20:37:13,535 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 20:37:13,842 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/Problem04_label12.c[176369,176382] [2023-04-01 20:37:13,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 20:37:13,870 INFO L208 MainTranslator]: Completed translation [2023-04-01 20:37:13,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:13 WrapperNode [2023-04-01 20:37:13,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 20:37:13,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 20:37:13,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 20:37:13,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 20:37:13,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:13" (1/1) ... [2023-04-01 20:37:13,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:13" (1/1) ... [2023-04-01 20:37:13,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:13" (1/1) ... [2023-04-01 20:37:13,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:13" (1/1) ... [2023-04-01 20:37:13,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:13" (1/1) ... [2023-04-01 20:37:14,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:13" (1/1) ... [2023-04-01 20:37:14,028 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:13" (1/1) ... [2023-04-01 20:37:14,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:13" (1/1) ... [2023-04-01 20:37:14,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 20:37:14,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 20:37:14,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 20:37:14,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 20:37:14,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:13" (1/1) ... [2023-04-01 20:37:14,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 20:37:14,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:37:14,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 20:37:14,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 20:37:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 20:37:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 20:37:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 20:37:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 20:37:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-01 20:37:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-01 20:37:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-01 20:37:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 20:37:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 20:37:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-01 20:37:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-01 20:37:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 20:37:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 20:37:14,174 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 20:37:14,175 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 20:37:16,776 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 20:37:16,796 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 20:37:16,796 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 20:37:16,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:37:16 BoogieIcfgContainer [2023-04-01 20:37:16,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 20:37:16,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 20:37:16,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 20:37:16,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 20:37:16,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 08:37:12" (1/3) ... [2023-04-01 20:37:16,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e26a25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:37:16, skipping insertion in model container [2023-04-01 20:37:16,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 08:37:13" (2/3) ... [2023-04-01 20:37:16,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e26a25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 08:37:16, skipping insertion in model container [2023-04-01 20:37:16,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 08:37:16" (3/3) ... [2023-04-01 20:37:16,808 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label12.c [2023-04-01 20:37:16,820 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 20:37:16,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 20:37:16,876 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 20:37:16,880 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;@6007dabb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 20:37:16,880 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 20:37:16,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 906 states, 892 states have (on average 1.913677130044843) internal successors, (1707), 893 states have internal predecessors, (1707), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-04-01 20:37:16,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 769 [2023-04-01 20:37:16,912 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:37:16,913 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] [2023-04-01 20:37:16,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:37:16,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:37:16,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1001140784, now seen corresponding path program 1 times [2023-04-01 20:37:16,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:37:16,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609710357] [2023-04-01 20:37:16,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:37:16,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:37:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:19,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:37:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:19,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 20:37:19,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:37:19,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609710357] [2023-04-01 20:37:19,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609710357] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:37:19,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 20:37:19,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 20:37:19,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684278088] [2023-04-01 20:37:19,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:37:19,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 20:37:19,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:37:19,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 20:37:19,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 20:37:19,842 INFO L87 Difference]: Start difference. First operand has 906 states, 892 states have (on average 1.913677130044843) internal successors, (1707), 893 states have internal predecessors, (1707), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 5 states, 4 states have (on average 190.25) internal successors, (761), 3 states have internal predecessors, (761), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 20:37:24,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:37:24,479 INFO L93 Difference]: Finished difference Result 2672 states and 5137 transitions. [2023-04-01 20:37:24,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 20:37:24,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 190.25) internal successors, (761), 3 states have internal predecessors, (761), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 768 [2023-04-01 20:37:24,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:37:24,499 INFO L225 Difference]: With dead ends: 2672 [2023-04-01 20:37:24,499 INFO L226 Difference]: Without dead ends: 1702 [2023-04-01 20:37:24,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-04-01 20:37:24,511 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2693 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 5375 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2693 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 5834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 5375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-01 20:37:24,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2693 Valid, 65 Invalid, 5834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 5375 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-01 20:37:24,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2023-04-01 20:37:24,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1689. [2023-04-01 20:37:24,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1664 states have (on average 1.8010817307692308) internal successors, (2997), 1666 states have internal predecessors, (2997), 10 states have call successors, (10), 10 states have call predecessors, (10), 14 states have return successors, (22), 12 states have call predecessors, (22), 9 states have call successors, (22) [2023-04-01 20:37:24,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 3029 transitions. [2023-04-01 20:37:24,621 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 3029 transitions. Word has length 768 [2023-04-01 20:37:24,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:37:24,623 INFO L495 AbstractCegarLoop]: Abstraction has 1689 states and 3029 transitions. [2023-04-01 20:37:24,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 190.25) internal successors, (761), 3 states have internal predecessors, (761), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 20:37:24,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 3029 transitions. [2023-04-01 20:37:24,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2023-04-01 20:37:24,637 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:37:24,637 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] [2023-04-01 20:37:24,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 20:37:24,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:37:24,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:37:24,638 INFO L85 PathProgramCache]: Analyzing trace with hash 682015634, now seen corresponding path program 1 times [2023-04-01 20:37:24,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:37:24,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618437152] [2023-04-01 20:37:24,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:37:24,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:37:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:26,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:37:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:26,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:37:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:26,414 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 20:37:26,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:37:26,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618437152] [2023-04-01 20:37:26,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618437152] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:37:26,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 20:37:26,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 20:37:26,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938701086] [2023-04-01 20:37:26,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:37:26,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 20:37:26,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:37:26,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 20:37:26,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 20:37:26,420 INFO L87 Difference]: Start difference. First operand 1689 states and 3029 transitions. Second operand has 8 states, 7 states have (on average 109.57142857142857) internal successors, (767), 5 states have internal predecessors, (767), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:37:31,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:37:31,877 INFO L93 Difference]: Finished difference Result 5170 states and 9293 transitions. [2023-04-01 20:37:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-01 20:37:31,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 109.57142857142857) internal successors, (767), 5 states have internal predecessors, (767), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 776 [2023-04-01 20:37:31,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:37:31,898 INFO L225 Difference]: With dead ends: 5170 [2023-04-01 20:37:31,898 INFO L226 Difference]: Without dead ends: 3487 [2023-04-01 20:37:31,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-04-01 20:37:31,901 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 2754 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 7041 mSolverCounterSat, 1739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2754 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 8780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1739 IncrementalHoareTripleChecker+Valid, 7041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-04-01 20:37:31,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2754 Valid, 187 Invalid, 8780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1739 Valid, 7041 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-04-01 20:37:31,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2023-04-01 20:37:31,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 3448. [2023-04-01 20:37:31,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 3374 states have (on average 1.5500889152341435) internal successors, (5230), 3384 states have internal predecessors, (5230), 18 states have call successors, (18), 18 states have call predecessors, (18), 55 states have return successors, (127), 45 states have call predecessors, (127), 17 states have call successors, (127) [2023-04-01 20:37:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 5375 transitions. [2023-04-01 20:37:32,002 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 5375 transitions. Word has length 776 [2023-04-01 20:37:32,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:37:32,003 INFO L495 AbstractCegarLoop]: Abstraction has 3448 states and 5375 transitions. [2023-04-01 20:37:32,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 109.57142857142857) internal successors, (767), 5 states have internal predecessors, (767), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:37:32,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 5375 transitions. [2023-04-01 20:37:32,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 779 [2023-04-01 20:37:32,015 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:37:32,015 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 20:37:32,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 20:37:32,016 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:37:32,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:37:32,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1728281038, now seen corresponding path program 1 times [2023-04-01 20:37:32,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:37:32,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809914285] [2023-04-01 20:37:32,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:37:32,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:37:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:32,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:37:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:32,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:37:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:32,749 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 20:37:32,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:37:32,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809914285] [2023-04-01 20:37:32,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809914285] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:37:32,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 20:37:32,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 20:37:32,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558566264] [2023-04-01 20:37:32,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:37:32,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 20:37:32,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:37:32,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 20:37:32,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-01 20:37:32,754 INFO L87 Difference]: Start difference. First operand 3448 states and 5375 transitions. Second operand has 7 states, 6 states have (on average 128.16666666666666) internal successors, (769), 4 states have internal predecessors, (769), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:37:37,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:37:37,314 INFO L93 Difference]: Finished difference Result 10466 states and 16539 transitions. [2023-04-01 20:37:37,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-01 20:37:37,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 128.16666666666666) internal successors, (769), 4 states have internal predecessors, (769), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 778 [2023-04-01 20:37:37,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:37:37,354 INFO L225 Difference]: With dead ends: 10466 [2023-04-01 20:37:37,354 INFO L226 Difference]: Without dead ends: 7024 [2023-04-01 20:37:37,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-01 20:37:37,364 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 5141 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 4931 mSolverCounterSat, 1588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5141 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 6519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1588 IncrementalHoareTripleChecker+Valid, 4931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-01 20:37:37,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5141 Valid, 87 Invalid, 6519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1588 Valid, 4931 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-01 20:37:37,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7024 states. [2023-04-01 20:37:37,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7024 to 6954. [2023-04-01 20:37:37,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6954 states, 6785 states have (on average 1.3941046425939572) internal successors, (9459), 6814 states have internal predecessors, (9459), 34 states have call successors, (34), 34 states have call predecessors, (34), 134 states have return successors, (378), 105 states have call predecessors, (378), 33 states have call successors, (378) [2023-04-01 20:37:37,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6954 states to 6954 states and 9871 transitions. [2023-04-01 20:37:37,539 INFO L78 Accepts]: Start accepts. Automaton has 6954 states and 9871 transitions. Word has length 778 [2023-04-01 20:37:37,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:37:37,539 INFO L495 AbstractCegarLoop]: Abstraction has 6954 states and 9871 transitions. [2023-04-01 20:37:37,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 128.16666666666666) internal successors, (769), 4 states have internal predecessors, (769), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:37:37,540 INFO L276 IsEmpty]: Start isEmpty. Operand 6954 states and 9871 transitions. [2023-04-01 20:37:37,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2023-04-01 20:37:37,554 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:37:37,554 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 20:37:37,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 20:37:37,555 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:37:37,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:37:37,556 INFO L85 PathProgramCache]: Analyzing trace with hash 394245250, now seen corresponding path program 1 times [2023-04-01 20:37:37,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:37:37,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716439048] [2023-04-01 20:37:37,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:37:37,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:37:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:37:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:37:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:38,416 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 20:37:38,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:37:38,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716439048] [2023-04-01 20:37:38,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716439048] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:37:38,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 20:37:38,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 20:37:38,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173848701] [2023-04-01 20:37:38,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:37:38,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 20:37:38,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:37:38,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 20:37:38,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 20:37:38,419 INFO L87 Difference]: Start difference. First operand 6954 states and 9871 transitions. Second operand has 8 states, 7 states have (on average 110.71428571428571) internal successors, (775), 5 states have internal predecessors, (775), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:37:44,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:37:44,870 INFO L93 Difference]: Finished difference Result 27846 states and 41297 transitions. [2023-04-01 20:37:44,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-01 20:37:44,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 110.71428571428571) internal successors, (775), 5 states have internal predecessors, (775), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 784 [2023-04-01 20:37:44,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:37:44,936 INFO L225 Difference]: With dead ends: 27846 [2023-04-01 20:37:44,936 INFO L226 Difference]: Without dead ends: 20898 [2023-04-01 20:37:44,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-04-01 20:37:44,956 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 8101 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 6792 mSolverCounterSat, 2384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8101 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 9176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2384 IncrementalHoareTripleChecker+Valid, 6792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-01 20:37:44,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8101 Valid, 129 Invalid, 9176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2384 Valid, 6792 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-01 20:37:44,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20898 states. [2023-04-01 20:37:45,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20898 to 20837. [2023-04-01 20:37:45,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20837 states, 20336 states have (on average 1.2738001573564122) internal successors, (25904), 20438 states have internal predecessors, (25904), 98 states have call successors, (98), 98 states have call predecessors, (98), 402 states have return successors, (2174), 300 states have call predecessors, (2174), 97 states have call successors, (2174) [2023-04-01 20:37:45,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20837 states to 20837 states and 28176 transitions. [2023-04-01 20:37:45,470 INFO L78 Accepts]: Start accepts. Automaton has 20837 states and 28176 transitions. Word has length 784 [2023-04-01 20:37:45,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:37:45,470 INFO L495 AbstractCegarLoop]: Abstraction has 20837 states and 28176 transitions. [2023-04-01 20:37:45,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 110.71428571428571) internal successors, (775), 5 states have internal predecessors, (775), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:37:45,471 INFO L276 IsEmpty]: Start isEmpty. Operand 20837 states and 28176 transitions. [2023-04-01 20:37:45,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2023-04-01 20:37:45,503 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:37:45,503 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 20:37:45,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 20:37:45,503 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:37:45,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:37:45,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1507192448, now seen corresponding path program 1 times [2023-04-01 20:37:45,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:37:45,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584596284] [2023-04-01 20:37:45,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:37:45,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:37:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:46,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:37:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:46,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:37:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:46,797 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 20:37:46,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:37:46,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584596284] [2023-04-01 20:37:46,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584596284] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:37:46,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 20:37:46,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 20:37:46,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118234460] [2023-04-01 20:37:46,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:37:46,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 20:37:46,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:37:46,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 20:37:46,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 20:37:46,800 INFO L87 Difference]: Start difference. First operand 20837 states and 28176 transitions. Second operand has 8 states, 7 states have (on average 110.85714285714286) internal successors, (776), 5 states have internal predecessors, (776), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:37:52,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:37:52,145 INFO L93 Difference]: Finished difference Result 55779 states and 76889 transitions. [2023-04-01 20:37:52,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-01 20:37:52,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 110.85714285714286) internal successors, (776), 5 states have internal predecessors, (776), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 785 [2023-04-01 20:37:52,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:37:52,252 INFO L225 Difference]: With dead ends: 55779 [2023-04-01 20:37:52,252 INFO L226 Difference]: Without dead ends: 34948 [2023-04-01 20:37:52,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-04-01 20:37:52,290 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 4342 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 6951 mSolverCounterSat, 1592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4342 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 8543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1592 IncrementalHoareTripleChecker+Valid, 6951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-04-01 20:37:52,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4342 Valid, 164 Invalid, 8543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1592 Valid, 6951 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-04-01 20:37:52,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34948 states. [2023-04-01 20:37:52,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34948 to 32286. [2023-04-01 20:37:52,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32286 states, 31449 states have (on average 1.2266208782473211) internal successors, (38576), 31640 states have internal predecessors, (38576), 150 states have call successors, (150), 150 states have call predecessors, (150), 686 states have return successors, (4420), 495 states have call predecessors, (4420), 149 states have call successors, (4420) [2023-04-01 20:37:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32286 states to 32286 states and 43146 transitions. [2023-04-01 20:37:52,987 INFO L78 Accepts]: Start accepts. Automaton has 32286 states and 43146 transitions. Word has length 785 [2023-04-01 20:37:52,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:37:52,987 INFO L495 AbstractCegarLoop]: Abstraction has 32286 states and 43146 transitions. [2023-04-01 20:37:52,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 110.85714285714286) internal successors, (776), 5 states have internal predecessors, (776), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 20:37:52,988 INFO L276 IsEmpty]: Start isEmpty. Operand 32286 states and 43146 transitions. [2023-04-01 20:37:53,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 937 [2023-04-01 20:37:53,082 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:37:53,084 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 20:37:53,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 20:37:53,085 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:37:53,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:37:53,085 INFO L85 PathProgramCache]: Analyzing trace with hash 328747958, now seen corresponding path program 1 times [2023-04-01 20:37:53,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:37:53,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992248897] [2023-04-01 20:37:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:37:53,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:37:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:37:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:54,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:37:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:54,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-01 20:37:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-01 20:37:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 183 proven. 67 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-01 20:37:54,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:37:54,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992248897] [2023-04-01 20:37:54,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992248897] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 20:37:54,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198171197] [2023-04-01 20:37:54,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:37:54,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:37:54,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:37:54,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 20:37:54,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 20:37:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:37:54,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 20:37:54,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:37:54,907 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 211 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-04-01 20:37:54,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 20:37:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 187 proven. 68 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-01 20:37:55,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198171197] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 20:37:55,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 20:37:55,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2023-04-01 20:37:55,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554827068] [2023-04-01 20:37:55,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 20:37:55,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-01 20:37:55,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:37:55,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-01 20:37:55,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-04-01 20:37:55,163 INFO L87 Difference]: Start difference. First operand 32286 states and 43146 transitions. Second operand has 13 states, 13 states have (on average 80.76923076923077) internal successors, (1050), 11 states have internal predecessors, (1050), 4 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-04-01 20:38:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:38:03,748 INFO L93 Difference]: Finished difference Result 94631 states and 135638 transitions. [2023-04-01 20:38:03,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-01 20:38:03,748 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 80.76923076923077) internal successors, (1050), 11 states have internal predecessors, (1050), 4 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 936 [2023-04-01 20:38:03,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:38:03,938 INFO L225 Difference]: With dead ends: 94631 [2023-04-01 20:38:03,938 INFO L226 Difference]: Without dead ends: 62351 [2023-04-01 20:38:03,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1905 GetRequests, 1883 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-04-01 20:38:03,986 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 8246 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 12408 mSolverCounterSat, 2815 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8246 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 15223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2815 IncrementalHoareTripleChecker+Valid, 12408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-04-01 20:38:03,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8246 Valid, 310 Invalid, 15223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2815 Valid, 12408 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-04-01 20:38:04,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62351 states. [2023-04-01 20:38:05,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62351 to 57979. [2023-04-01 20:38:05,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57979 states, 56645 states have (on average 1.2066378321122782) internal successors, (68350), 56934 states have internal predecessors, (68350), 270 states have call successors, (270), 270 states have call predecessors, (270), 1063 states have return successors, (9795), 774 states have call predecessors, (9795), 269 states have call successors, (9795) [2023-04-01 20:38:05,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57979 states to 57979 states and 78415 transitions. [2023-04-01 20:38:05,422 INFO L78 Accepts]: Start accepts. Automaton has 57979 states and 78415 transitions. Word has length 936 [2023-04-01 20:38:05,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:38:05,423 INFO L495 AbstractCegarLoop]: Abstraction has 57979 states and 78415 transitions. [2023-04-01 20:38:05,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 80.76923076923077) internal successors, (1050), 11 states have internal predecessors, (1050), 4 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-04-01 20:38:05,423 INFO L276 IsEmpty]: Start isEmpty. Operand 57979 states and 78415 transitions. [2023-04-01 20:38:05,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1064 [2023-04-01 20:38:05,498 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:38:05,499 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 20:38:05,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 20:38:05,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-04-01 20:38:05,708 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:38:05,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:38:05,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1413492244, now seen corresponding path program 1 times [2023-04-01 20:38:05,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:38:05,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181103770] [2023-04-01 20:38:05,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:38:05,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:38:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:07,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:38:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:07,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:38:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:07,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-01 20:38:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:07,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-01 20:38:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:07,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-04-01 20:38:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:07,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-04-01 20:38:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:07,593 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 371 proven. 91 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-04-01 20:38:07,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:38:07,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181103770] [2023-04-01 20:38:07,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181103770] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 20:38:07,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568646491] [2023-04-01 20:38:07,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:38:07,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:38:07,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:38:07,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 20:38:07,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 20:38:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:07,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 1636 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 20:38:07,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:38:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 493 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-04-01 20:38:08,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 20:38:08,347 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 384 proven. 81 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-04-01 20:38:08,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568646491] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 20:38:08,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 20:38:08,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2023-04-01 20:38:08,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82482177] [2023-04-01 20:38:08,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 20:38:08,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-01 20:38:08,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:38:08,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-01 20:38:08,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-04-01 20:38:08,350 INFO L87 Difference]: Start difference. First operand 57979 states and 78415 transitions. Second operand has 14 states, 14 states have (on average 78.28571428571429) internal successors, (1096), 12 states have internal predecessors, (1096), 5 states have call successors, (15), 7 states have call predecessors, (15), 8 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-01 20:38:26,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:38:26,301 INFO L93 Difference]: Finished difference Result 189894 states and 265294 transitions. [2023-04-01 20:38:26,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-04-01 20:38:26,302 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 78.28571428571429) internal successors, (1096), 12 states have internal predecessors, (1096), 5 states have call successors, (15), 7 states have call predecessors, (15), 8 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 1063 [2023-04-01 20:38:26,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:38:26,752 INFO L225 Difference]: With dead ends: 189894 [2023-04-01 20:38:26,752 INFO L226 Difference]: Without dead ends: 131921 [2023-04-01 20:38:26,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2250 GetRequests, 2183 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1447 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=770, Invalid=3786, Unknown=0, NotChecked=0, Total=4556 [2023-04-01 20:38:26,824 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 33680 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 17092 mSolverCounterSat, 9488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33680 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 26580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9488 IncrementalHoareTripleChecker+Valid, 17092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-04-01 20:38:26,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33680 Valid, 699 Invalid, 26580 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9488 Valid, 17092 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2023-04-01 20:38:26,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131921 states. [2023-04-01 20:38:29,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131921 to 129008. [2023-04-01 20:38:29,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129008 states, 126624 states have (on average 1.1325104245640636) internal successors, (143403), 127074 states have internal predecessors, (143403), 606 states have call successors, (606), 606 states have call predecessors, (606), 1777 states have return successors, (18303), 1327 states have call predecessors, (18303), 605 states have call successors, (18303) [2023-04-01 20:38:29,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129008 states to 129008 states and 162312 transitions. [2023-04-01 20:38:29,831 INFO L78 Accepts]: Start accepts. Automaton has 129008 states and 162312 transitions. Word has length 1063 [2023-04-01 20:38:29,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:38:29,831 INFO L495 AbstractCegarLoop]: Abstraction has 129008 states and 162312 transitions. [2023-04-01 20:38:29,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 78.28571428571429) internal successors, (1096), 12 states have internal predecessors, (1096), 5 states have call successors, (15), 7 states have call predecessors, (15), 8 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-01 20:38:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand 129008 states and 162312 transitions. [2023-04-01 20:38:29,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1137 [2023-04-01 20:38:29,944 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:38:29,944 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 20:38:29,952 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 20:38:30,150 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,SelfDestructingSolverStorable6 [2023-04-01 20:38:30,150 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:38:30,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:38:30,305 INFO L85 PathProgramCache]: Analyzing trace with hash -119197376, now seen corresponding path program 1 times [2023-04-01 20:38:30,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:38:30,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950184249] [2023-04-01 20:38:30,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:38:30,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:38:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:31,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:38:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:31,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:38:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-01 20:38:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:31,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-01 20:38:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-04-01 20:38:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 377 proven. 145 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-04-01 20:38:32,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:38:32,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950184249] [2023-04-01 20:38:32,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950184249] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 20:38:32,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68037285] [2023-04-01 20:38:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:38:32,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:38:32,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:38:32,024 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 20:38:32,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 20:38:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:38:32,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 20:38:32,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:38:32,473 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 285 proven. 2 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-04-01 20:38:32,473 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 20:38:32,652 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 381 proven. 144 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-04-01 20:38:32,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68037285] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 20:38:32,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 20:38:32,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2023-04-01 20:38:32,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782985696] [2023-04-01 20:38:32,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 20:38:32,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-01 20:38:32,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:38:32,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-01 20:38:32,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-04-01 20:38:32,657 INFO L87 Difference]: Start difference. First operand 129008 states and 162312 transitions. Second operand has 13 states, 13 states have (on average 88.38461538461539) internal successors, (1149), 11 states have internal predecessors, (1149), 5 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-01 20:38:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:38:54,732 INFO L93 Difference]: Finished difference Result 365619 states and 467056 transitions. [2023-04-01 20:38:54,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-01 20:38:54,733 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 88.38461538461539) internal successors, (1149), 11 states have internal predecessors, (1149), 5 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 1136 [2023-04-01 20:38:54,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:38:55,941 INFO L225 Difference]: With dead ends: 365619 [2023-04-01 20:38:55,941 INFO L226 Difference]: Without dead ends: 235755 [2023-04-01 20:38:56,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2341 GetRequests, 2302 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=341, Invalid=1219, Unknown=0, NotChecked=0, Total=1560 [2023-04-01 20:38:56,078 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 17409 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 31924 mSolverCounterSat, 5758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17417 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 37682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5758 IncrementalHoareTripleChecker+Valid, 31924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2023-04-01 20:38:56,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17417 Valid, 380 Invalid, 37682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5758 Valid, 31924 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2023-04-01 20:38:56,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235755 states. [2023-04-01 20:38:59,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235755 to 232048. [2023-04-01 20:38:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232048 states, 227024 states have (on average 1.1115652970611036) internal successors, (252352), 228081 states have internal predecessors, (252352), 1225 states have call successors, (1225), 1078 states have call predecessors, (1225), 3798 states have return successors, (33734), 2888 states have call predecessors, (33734), 1224 states have call successors, (33734) [2023-04-01 20:39:00,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232048 states to 232048 states and 287311 transitions. [2023-04-01 20:39:00,606 INFO L78 Accepts]: Start accepts. Automaton has 232048 states and 287311 transitions. Word has length 1136 [2023-04-01 20:39:00,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:39:00,607 INFO L495 AbstractCegarLoop]: Abstraction has 232048 states and 287311 transitions. [2023-04-01 20:39:00,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 88.38461538461539) internal successors, (1149), 11 states have internal predecessors, (1149), 5 states have call successors, (15), 7 states have call predecessors, (15), 7 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-01 20:39:00,607 INFO L276 IsEmpty]: Start isEmpty. Operand 232048 states and 287311 transitions. [2023-04-01 20:39:01,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1312 [2023-04-01 20:39:01,054 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:39:01,054 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 20:39:01,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 20:39:01,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:39:01,261 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:39:01,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:39:01,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1913968202, now seen corresponding path program 1 times [2023-04-01 20:39:01,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:39:01,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210770052] [2023-04-01 20:39:01,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:39:01,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:39:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:03,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:39:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:03,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:39:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:04,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-01 20:39:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:04,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-01 20:39:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:04,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2023-04-01 20:39:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:04,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-04-01 20:39:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:04,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2023-04-01 20:39:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:04,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 525 proven. 289 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-04-01 20:39:04,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:39:04,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210770052] [2023-04-01 20:39:04,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210770052] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 20:39:04,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542136396] [2023-04-01 20:39:04,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:39:04,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:39:04,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:39:04,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 20:39:04,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-01 20:39:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:04,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 1910 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 20:39:04,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:39:05,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 644 proven. 2 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-04-01 20:39:05,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 20:39:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 644 proven. 2 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-04-01 20:39:05,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542136396] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 20:39:05,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 20:39:05,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2023-04-01 20:39:05,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471673275] [2023-04-01 20:39:05,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 20:39:05,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-01 20:39:05,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:39:05,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-01 20:39:05,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-04-01 20:39:05,151 INFO L87 Difference]: Start difference. First operand 232048 states and 287311 transitions. Second operand has 11 states, 11 states have (on average 116.27272727272727) internal successors, (1279), 9 states have internal predecessors, (1279), 5 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-01 20:39:17,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:39:17,303 INFO L93 Difference]: Finished difference Result 398350 states and 488789 transitions. [2023-04-01 20:39:17,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-04-01 20:39:17,304 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 116.27272727272727) internal successors, (1279), 9 states have internal predecessors, (1279), 5 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 1311 [2023-04-01 20:39:17,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:39:17,869 INFO L225 Difference]: With dead ends: 398350 [2023-04-01 20:39:17,870 INFO L226 Difference]: Without dead ends: 166312 [2023-04-01 20:39:18,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2688 GetRequests, 2653 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=926, Unknown=0, NotChecked=0, Total=1190 [2023-04-01 20:39:18,066 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 6492 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 12957 mSolverCounterSat, 4252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6504 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 17209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4252 IncrementalHoareTripleChecker+Valid, 12957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-04-01 20:39:18,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6504 Valid, 318 Invalid, 17209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4252 Valid, 12957 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-04-01 20:39:18,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166312 states. [2023-04-01 20:39:20,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166312 to 164680. [2023-04-01 20:39:20,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164680 states, 160471 states have (on average 1.0852303531479208) internal successors, (174148), 161504 states have internal predecessors, (174148), 758 states have call successors, (758), 758 states have call predecessors, (758), 3450 states have return successors, (15632), 2417 states have call predecessors, (15632), 757 states have call successors, (15632) [2023-04-01 20:39:20,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164680 states to 164680 states and 190538 transitions. [2023-04-01 20:39:20,778 INFO L78 Accepts]: Start accepts. Automaton has 164680 states and 190538 transitions. Word has length 1311 [2023-04-01 20:39:20,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:39:20,778 INFO L495 AbstractCegarLoop]: Abstraction has 164680 states and 190538 transitions. [2023-04-01 20:39:20,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 116.27272727272727) internal successors, (1279), 9 states have internal predecessors, (1279), 5 states have call successors, (15), 7 states have call predecessors, (15), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-01 20:39:20,778 INFO L276 IsEmpty]: Start isEmpty. Operand 164680 states and 190538 transitions. [2023-04-01 20:39:21,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1459 [2023-04-01 20:39:21,043 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:39:21,043 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 20:39:21,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-01 20:39:21,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:39:21,248 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:39:21,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:39:21,249 INFO L85 PathProgramCache]: Analyzing trace with hash -265600066, now seen corresponding path program 1 times [2023-04-01 20:39:21,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:39:21,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387932341] [2023-04-01 20:39:21,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:39:21,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:39:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:24,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:39:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:24,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:39:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:24,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-01 20:39:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:24,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-01 20:39:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:25,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-01 20:39:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:25,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-01 20:39:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:26,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2023-04-01 20:39:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:26,031 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 713 proven. 31 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-04-01 20:39:26,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:39:26,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387932341] [2023-04-01 20:39:26,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387932341] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 20:39:26,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94670102] [2023-04-01 20:39:26,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:39:26,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:39:26,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:39:26,032 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 20:39:26,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-01 20:39:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:26,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 2027 conjuncts, 10 conjunts are in the unsatisfiable core [2023-04-01 20:39:26,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:39:27,174 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 681 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-04-01 20:39:27,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 20:39:27,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94670102] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 20:39:27,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 20:39:27,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-04-01 20:39:27,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840466587] [2023-04-01 20:39:27,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 20:39:27,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 20:39:27,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:39:27,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 20:39:27,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-01 20:39:27,177 INFO L87 Difference]: Start difference. First operand 164680 states and 190538 transitions. Second operand has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-01 20:39:30,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:39:30,639 INFO L93 Difference]: Finished difference Result 329311 states and 381117 transitions. [2023-04-01 20:39:30,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 20:39:30,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 1458 [2023-04-01 20:39:30,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:39:31,317 INFO L225 Difference]: With dead ends: 329311 [2023-04-01 20:39:31,317 INFO L226 Difference]: Without dead ends: 164637 [2023-04-01 20:39:31,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1481 GetRequests, 1474 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-01 20:39:31,449 INFO L413 NwaCegarLoop]: 1229 mSDtfsCounter, 107 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 2927 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 3240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 2927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-01 20:39:31,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1261 Invalid, 3240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 2927 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-01 20:39:31,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164637 states. [2023-04-01 20:39:33,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164637 to 164549. [2023-04-01 20:39:33,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164549 states, 160390 states have (on average 1.075628156368851) internal successors, (172520), 161404 states have internal predecessors, (172520), 758 states have call successors, (758), 758 states have call predecessors, (758), 3400 states have return successors, (13723), 2386 states have call predecessors, (13723), 757 states have call successors, (13723) [2023-04-01 20:39:34,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164549 states to 164549 states and 187001 transitions. [2023-04-01 20:39:34,153 INFO L78 Accepts]: Start accepts. Automaton has 164549 states and 187001 transitions. Word has length 1458 [2023-04-01 20:39:34,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:39:34,155 INFO L495 AbstractCegarLoop]: Abstraction has 164549 states and 187001 transitions. [2023-04-01 20:39:34,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-01 20:39:34,155 INFO L276 IsEmpty]: Start isEmpty. Operand 164549 states and 187001 transitions. [2023-04-01 20:39:34,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1685 [2023-04-01 20:39:34,548 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:39:34,549 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 20:39:34,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-01 20:39:34,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-01 20:39:34,757 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:39:34,757 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:39:34,758 INFO L85 PathProgramCache]: Analyzing trace with hash -607432020, now seen corresponding path program 1 times [2023-04-01 20:39:34,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:39:34,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584314738] [2023-04-01 20:39:34,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:39:34,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:39:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:37,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:39:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:39:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:37,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-01 20:39:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:37,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-01 20:39:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:38,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-01 20:39:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:38,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-01 20:39:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:39,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2023-04-01 20:39:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:39,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2023-04-01 20:39:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:39,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1388 backedges. 944 proven. 256 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2023-04-01 20:39:39,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:39:39,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584314738] [2023-04-01 20:39:39,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584314738] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 20:39:39,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359499887] [2023-04-01 20:39:39,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:39:39,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:39:39,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:39:39,326 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 20:39:39,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-01 20:39:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:39:39,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 2308 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 20:39:39,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:39:40,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1388 backedges. 1192 proven. 2 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-04-01 20:39:40,004 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 20:39:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1388 backedges. 1192 proven. 2 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-04-01 20:39:40,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359499887] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 20:39:40,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 20:39:40,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2023-04-01 20:39:40,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579087727] [2023-04-01 20:39:40,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 20:39:40,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-01 20:39:40,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:39:40,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-01 20:39:40,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-04-01 20:39:40,375 INFO L87 Difference]: Start difference. First operand 164549 states and 187001 transitions. Second operand has 13 states, 13 states have (on average 176.6153846153846) internal successors, (2296), 11 states have internal predecessors, (2296), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-04-01 20:39:54,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:39:54,991 INFO L93 Difference]: Finished difference Result 327033 states and 372391 transitions. [2023-04-01 20:39:54,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-04-01 20:39:54,991 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 176.6153846153846) internal successors, (2296), 11 states have internal predecessors, (2296), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 1684 [2023-04-01 20:39:54,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:39:55,332 INFO L225 Difference]: With dead ends: 327033 [2023-04-01 20:39:55,332 INFO L226 Difference]: Without dead ends: 157361 [2023-04-01 20:39:55,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3512 GetRequests, 3439 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1781 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=871, Invalid=4531, Unknown=0, NotChecked=0, Total=5402 [2023-04-01 20:39:55,460 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 23102 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 15833 mSolverCounterSat, 3267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23102 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 19100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3267 IncrementalHoareTripleChecker+Valid, 15833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-04-01 20:39:55,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23102 Valid, 787 Invalid, 19100 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3267 Valid, 15833 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2023-04-01 20:39:55,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157361 states. [2023-04-01 20:39:57,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157361 to 154614. [2023-04-01 20:39:57,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154614 states, 151724 states have (on average 1.0184479713163375) internal successors, (154523), 152386 states have internal predecessors, (154523), 726 states have call successors, (726), 726 states have call predecessors, (726), 2163 states have return successors, (6544), 1501 states have call predecessors, (6544), 725 states have call successors, (6544) [2023-04-01 20:39:57,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154614 states to 154614 states and 161793 transitions. [2023-04-01 20:39:57,735 INFO L78 Accepts]: Start accepts. Automaton has 154614 states and 161793 transitions. Word has length 1684 [2023-04-01 20:39:57,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:39:57,735 INFO L495 AbstractCegarLoop]: Abstraction has 154614 states and 161793 transitions. [2023-04-01 20:39:57,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 176.6153846153846) internal successors, (2296), 11 states have internal predecessors, (2296), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-04-01 20:39:57,736 INFO L276 IsEmpty]: Start isEmpty. Operand 154614 states and 161793 transitions. [2023-04-01 20:39:58,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1937 [2023-04-01 20:39:58,057 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:39:58,058 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 20:39:58,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-01 20:39:58,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:39:58,266 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:39:58,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:39:58,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2118161478, now seen corresponding path program 1 times [2023-04-01 20:39:58,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:39:58,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887978775] [2023-04-01 20:39:58,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:39:58,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:39:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:40:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:40:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-01 20:40:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-01 20:40:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-04-01 20:40:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-04-01 20:40:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-04-01 20:40:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2023-04-01 20:40:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-01 20:40:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-01 20:40:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2023-04-01 20:40:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:00,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2721 backedges. 1468 proven. 315 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2023-04-01 20:40:00,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:40:00,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887978775] [2023-04-01 20:40:00,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887978775] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 20:40:00,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080989669] [2023-04-01 20:40:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:40:00,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:40:00,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:40:00,674 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 20:40:00,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-01 20:40:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:01,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 2705 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 20:40:01,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:40:01,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2721 backedges. 1742 proven. 2 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2023-04-01 20:40:01,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 20:40:01,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2721 backedges. 1469 proven. 299 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2023-04-01 20:40:01,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080989669] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 20:40:01,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 20:40:01,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 14 [2023-04-01 20:40:01,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101935655] [2023-04-01 20:40:01,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 20:40:01,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-01 20:40:01,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:40:01,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-01 20:40:01,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-04-01 20:40:01,805 INFO L87 Difference]: Start difference. First operand 154614 states and 161793 transitions. Second operand has 14 states, 14 states have (on average 125.35714285714286) internal successors, (1755), 12 states have internal predecessors, (1755), 5 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-04-01 20:40:13,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:40:13,194 INFO L93 Difference]: Finished difference Result 318490 states and 333425 transitions. [2023-04-01 20:40:13,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-04-01 20:40:13,195 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 125.35714285714286) internal successors, (1755), 12 states have internal predecessors, (1755), 5 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 1936 [2023-04-01 20:40:13,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:40:13,639 INFO L225 Difference]: With dead ends: 318490 [2023-04-01 20:40:13,639 INFO L226 Difference]: Without dead ends: 163882 [2023-04-01 20:40:13,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3959 GetRequests, 3915 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=411, Invalid=1481, Unknown=0, NotChecked=0, Total=1892 [2023-04-01 20:40:13,730 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 18256 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 13288 mSolverCounterSat, 1549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18264 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 14837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1549 IncrementalHoareTripleChecker+Valid, 13288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-04-01 20:40:13,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18264 Valid, 322 Invalid, 14837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1549 Valid, 13288 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-04-01 20:40:13,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163882 states. [2023-04-01 20:40:15,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163882 to 156972. [2023-04-01 20:40:15,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156972 states, 154115 states have (on average 1.0132498458942998) internal successors, (156157), 154750 states have internal predecessors, (156157), 738 states have call successors, (738), 738 states have call predecessors, (738), 2118 states have return successors, (4974), 1483 states have call predecessors, (4974), 737 states have call successors, (4974) [2023-04-01 20:40:16,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156972 states to 156972 states and 161869 transitions. [2023-04-01 20:40:16,043 INFO L78 Accepts]: Start accepts. Automaton has 156972 states and 161869 transitions. Word has length 1936 [2023-04-01 20:40:16,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:40:16,043 INFO L495 AbstractCegarLoop]: Abstraction has 156972 states and 161869 transitions. [2023-04-01 20:40:16,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 125.35714285714286) internal successors, (1755), 12 states have internal predecessors, (1755), 5 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-04-01 20:40:16,044 INFO L276 IsEmpty]: Start isEmpty. Operand 156972 states and 161869 transitions. [2023-04-01 20:40:16,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2074 [2023-04-01 20:40:16,194 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:40:16,195 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 20:40:16,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-01 20:40:16,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:40:16,402 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:40:16,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:40:16,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1849336230, now seen corresponding path program 1 times [2023-04-01 20:40:16,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:40:16,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515809168] [2023-04-01 20:40:16,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:40:16,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:40:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 20:40:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:22,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 20:40:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:22,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-01 20:40:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:22,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-01 20:40:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:22,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-04-01 20:40:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-01 20:40:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:23,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2023-04-01 20:40:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:23,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-01 20:40:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:23,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-01 20:40:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1173 [2023-04-01 20:40:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 1574 proven. 481 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2023-04-01 20:40:23,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 20:40:23,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515809168] [2023-04-01 20:40:23,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515809168] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 20:40:23,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579764689] [2023-04-01 20:40:23,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:40:23,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 20:40:23,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 20:40:23,764 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 20:40:23,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-01 20:40:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 20:40:24,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 2787 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 20:40:24,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 20:40:24,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 1837 proven. 2 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2023-04-01 20:40:24,545 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 20:40:24,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 1837 proven. 2 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2023-04-01 20:40:24,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579764689] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 20:40:24,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 20:40:24,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2023-04-01 20:40:24,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655499356] [2023-04-01 20:40:24,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 20:40:24,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-01 20:40:24,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 20:40:24,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-01 20:40:24,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-04-01 20:40:24,904 INFO L87 Difference]: Start difference. First operand 156972 states and 161869 transitions. Second operand has 15 states, 15 states have (on average 130.13333333333333) internal successors, (1952), 13 states have internal predecessors, (1952), 7 states have call successors, (20), 7 states have call predecessors, (20), 8 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-04-01 20:40:38,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 20:40:38,370 INFO L93 Difference]: Finished difference Result 311546 states and 321257 transitions. [2023-04-01 20:40:38,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-04-01 20:40:38,370 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 130.13333333333333) internal successors, (1952), 13 states have internal predecessors, (1952), 7 states have call successors, (20), 7 states have call predecessors, (20), 8 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 2073 [2023-04-01 20:40:38,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 20:40:38,704 INFO L225 Difference]: With dead ends: 311546 [2023-04-01 20:40:38,704 INFO L226 Difference]: Without dead ends: 157910 [2023-04-01 20:40:38,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4269 GetRequests, 4204 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1302 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=749, Invalid=3411, Unknown=0, NotChecked=0, Total=4160 [2023-04-01 20:40:38,832 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 13896 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 17252 mSolverCounterSat, 1215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13896 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 18467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1215 IncrementalHoareTripleChecker+Valid, 17252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-04-01 20:40:38,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13896 Valid, 458 Invalid, 18467 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1215 Valid, 17252 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2023-04-01 20:40:38,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157910 states. [2023-04-01 20:40:41,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157910 to 150305. [2023-04-01 20:40:41,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150305 states, 147511 states have (on average 1.0113957603161798) internal successors, (149192), 148144 states have internal predecessors, (149192), 706 states have call successors, (706), 706 states have call predecessors, (706), 2087 states have return successors, (4192), 1454 states have call predecessors, (4192), 705 states have call successors, (4192) [2023-04-01 20:40:41,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150305 states to 150305 states and 154090 transitions. [2023-04-01 20:40:41,551 INFO L78 Accepts]: Start accepts. Automaton has 150305 states and 154090 transitions. Word has length 2073 [2023-04-01 20:40:41,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 20:40:41,552 INFO L495 AbstractCegarLoop]: Abstraction has 150305 states and 154090 transitions. [2023-04-01 20:40:41,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 130.13333333333333) internal successors, (1952), 13 states have internal predecessors, (1952), 7 states have call successors, (20), 7 states have call predecessors, (20), 8 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-04-01 20:40:41,552 INFO L276 IsEmpty]: Start isEmpty. Operand 150305 states and 154090 transitions. [2023-04-01 20:40:42,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5487 [2023-04-01 20:40:42,078 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 20:40:42,080 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 20:40:42,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-04-01 20:40:42,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-04-01 20:40:42,289 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 20:40:42,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 20:40:42,290 INFO L85 PathProgramCache]: Analyzing trace with hash -2112663222, now seen corresponding path program 1 times [2023-04-01 20:40:42,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 20:40:42,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22504877] [2023-04-01 20:40:42,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 20:40:42,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 20:40:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat