/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/eca-rers2012/Problem06_label07.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 21:06:48,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 21:06:48,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 21:06:48,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-01 21:06:48,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 21:06:48,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 21:06:48,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 21:06:48,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 21:06:48,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 21:06:48,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 21:06:48,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 21:06:48,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 21:06:48,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 21:06:48,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 21:06:48,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 21:06:48,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 21:06:48,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 21:06:48,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 21:06:48,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 21:06:48,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 21:06:48,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 21:06:48,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 21:06:48,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 21:06:48,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 21:06:48,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 21:06:48,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 21:06:48,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 21:06:48,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 21:06:48,216 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-01 21:06:48,230 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 21:06:48,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 21:06:48,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 21:06:48,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 21:06:48,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 21:06:48,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 21:06:48,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 21:06:48,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 21:06:48,231 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 21:06:48,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 21:06:48,232 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 21:06:48,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 21:06:48,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 21:06:48,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 21:06:48,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 21:06:48,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 21:06:48,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 21:06:48,232 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 21:06:48,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 21:06:48,233 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 21:06:48,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 21:06:48,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 21:06:48,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 21:06:48,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 21:06:48,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 21:06:48,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 21:06:48,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 21:06:48,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 21:06:48,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 21:06:48,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 21:06:48,234 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 21:06:48,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 21:06:48,234 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 21:06:48,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 21:06:48,234 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 21:06:48,234 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 21:06:48,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 21:06:48,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 21:06:48,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 21:06:48,446 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 21:06:48,453 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 21:06:48,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem06_label07.c [2023-04-01 21:06:49,535 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 21:06:49,929 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 21:06:49,929 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem06_label07.c [2023-04-01 21:06:49,966 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd02fc978/2b30d9dd920e4e6e81607949e12f8bb2/FLAG87ffc0946 [2023-04-01 21:06:49,981 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd02fc978/2b30d9dd920e4e6e81607949e12f8bb2 [2023-04-01 21:06:49,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 21:06:49,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 21:06:49,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 21:06:49,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 21:06:49,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 21:06:49,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:06:49" (1/1) ... [2023-04-01 21:06:49,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e0aba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:49, skipping insertion in model container [2023-04-01 21:06:49,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:06:49" (1/1) ... [2023-04-01 21:06:49,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 21:06:50,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 21:06:51,149 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem06_label07.c[334297,334310] [2023-04-01 21:06:51,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 21:06:51,176 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 21:06:51,732 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem06_label07.c[334297,334310] [2023-04-01 21:06:51,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 21:06:51,768 INFO L208 MainTranslator]: Completed translation [2023-04-01 21:06:51,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:51 WrapperNode [2023-04-01 21:06:51,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 21:06:51,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 21:06:51,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 21:06:51,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 21:06:51,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:51" (1/1) ... [2023-04-01 21:06:51,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:51" (1/1) ... [2023-04-01 21:06:51,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:51" (1/1) ... [2023-04-01 21:06:51,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:51" (1/1) ... [2023-04-01 21:06:52,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:51" (1/1) ... [2023-04-01 21:06:52,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:51" (1/1) ... [2023-04-01 21:06:52,069 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:51" (1/1) ... [2023-04-01 21:06:52,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:51" (1/1) ... [2023-04-01 21:06:52,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 21:06:52,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 21:06:52,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 21:06:52,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 21:06:52,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:51" (1/1) ... [2023-04-01 21:06:52,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 21:06:52,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 21:06:52,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 21:06:52,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 21:06:52,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 21:06:52,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 21:06:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 21:06:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 21:06:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-01 21:06:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-01 21:06:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-01 21:06:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-01 21:06:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 21:06:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 21:06:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-01 21:06:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-01 21:06:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-01 21:06:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-01 21:06:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 21:06:52,191 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 21:06:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 21:06:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 21:06:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 21:06:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 21:06:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 21:06:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 21:06:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 21:06:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 21:06:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 21:06:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 21:06:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 21:06:52,371 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 21:06:52,373 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 21:06:56,539 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 21:06:56,550 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 21:06:56,551 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 21:06:56,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:06:56 BoogieIcfgContainer [2023-04-01 21:06:56,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 21:06:56,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 21:06:56,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 21:06:56,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 21:06:56,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 09:06:49" (1/3) ... [2023-04-01 21:06:56,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd60865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:06:56, skipping insertion in model container [2023-04-01 21:06:56,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:06:51" (2/3) ... [2023-04-01 21:06:56,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd60865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:06:56, skipping insertion in model container [2023-04-01 21:06:56,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:06:56" (3/3) ... [2023-04-01 21:06:56,559 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label07.c [2023-04-01 21:06:56,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 21:06:56,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 21:06:56,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 21:06:56,633 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;@6bf1082c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 21:06:56,633 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 21:06:56,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 1315 states, 1299 states have (on average 1.8498845265588915) internal successors, (2403), 1300 states have internal predecessors, (2403), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-04-01 21:06:56,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 977 [2023-04-01 21:06:56,668 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:06:56,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 21:06:56,670 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:06:56,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:06:56,674 INFO L85 PathProgramCache]: Analyzing trace with hash -19487833, now seen corresponding path program 1 times [2023-04-01 21:06:56,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:06:56,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049426092] [2023-04-01 21:06:56,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:06:56,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:06:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:07:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:01,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:07:01,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:07:01,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049426092] [2023-04-01 21:07:01,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049426092] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 21:07:01,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 21:07:01,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 21:07:01,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084525825] [2023-04-01 21:07:01,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 21:07:01,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 21:07:01,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:07:01,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 21:07:01,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 21:07:01,192 INFO L87 Difference]: Start difference. First operand has 1315 states, 1299 states have (on average 1.8498845265588915) internal successors, (2403), 1300 states have internal predecessors, (2403), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 5 states, 4 states have (on average 242.0) internal successors, (968), 3 states have internal predecessors, (968), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 21:07:08,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:07:08,659 INFO L93 Difference]: Finished difference Result 3767 states and 7011 transitions. [2023-04-01 21:07:08,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 21:07:08,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 242.0) internal successors, (968), 3 states have internal predecessors, (968), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 976 [2023-04-01 21:07:08,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:07:08,689 INFO L225 Difference]: With dead ends: 3767 [2023-04-01 21:07:08,689 INFO L226 Difference]: Without dead ends: 2388 [2023-04-01 21:07:08,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-04-01 21:07:08,699 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 4249 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 5045 mSolverCounterSat, 1728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4249 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 6773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1728 IncrementalHoareTripleChecker+Valid, 5045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-04-01 21:07:08,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4249 Valid, 288 Invalid, 6773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1728 Valid, 5045 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-04-01 21:07:08,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2023-04-01 21:07:08,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2365. [2023-04-01 21:07:08,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2365 states, 2331 states have (on average 1.7696267696267696) internal successors, (4125), 2333 states have internal predecessors, (4125), 12 states have call successors, (12), 12 states have call predecessors, (12), 21 states have return successors, (31), 19 states have call predecessors, (31), 11 states have call successors, (31) [2023-04-01 21:07:08,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 4168 transitions. [2023-04-01 21:07:08,796 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 4168 transitions. Word has length 976 [2023-04-01 21:07:08,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:07:08,799 INFO L495 AbstractCegarLoop]: Abstraction has 2365 states and 4168 transitions. [2023-04-01 21:07:08,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 242.0) internal successors, (968), 3 states have internal predecessors, (968), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 21:07:08,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 4168 transitions. [2023-04-01 21:07:08,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 985 [2023-04-01 21:07:08,833 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:07:08,837 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 21:07:08,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 21:07:08,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:07:08,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:07:08,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1401655720, now seen corresponding path program 1 times [2023-04-01 21:07:08,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:07:08,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613894876] [2023-04-01 21:07:08,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:07:08,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:07:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:07:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:07:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:10,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:07:10,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:07:10,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613894876] [2023-04-01 21:07:10,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613894876] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 21:07:10,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 21:07:10,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 21:07:10,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734636161] [2023-04-01 21:07:10,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 21:07:10,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 21:07:10,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:07:10,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 21:07:10,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 21:07:10,652 INFO L87 Difference]: Start difference. First operand 2365 states and 4168 transitions. Second operand has 8 states, 7 states have (on average 139.14285714285714) internal successors, (974), 5 states have internal predecessors, (974), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 21:07:21,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:07:21,958 INFO L93 Difference]: Finished difference Result 9461 states and 16834 transitions. [2023-04-01 21:07:21,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-01 21:07:21,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 139.14285714285714) internal successors, (974), 5 states have internal predecessors, (974), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 984 [2023-04-01 21:07:21,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:07:22,007 INFO L225 Difference]: With dead ends: 9461 [2023-04-01 21:07:22,010 INFO L226 Difference]: Without dead ends: 7102 [2023-04-01 21:07:22,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-04-01 21:07:22,027 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 8352 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 12462 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8352 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 12907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 12462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-04-01 21:07:22,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8352 Valid, 857 Invalid, 12907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 12462 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-04-01 21:07:22,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7102 states. [2023-04-01 21:07:22,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7102 to 7065. [2023-04-01 21:07:22,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7065 states, 6951 states have (on average 1.7652136383254209) internal successors, (12270), 6962 states have internal predecessors, (12270), 32 states have call successors, (32), 32 states have call predecessors, (32), 81 states have return successors, (223), 70 states have call predecessors, (223), 31 states have call successors, (223) [2023-04-01 21:07:22,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7065 states to 7065 states and 12525 transitions. [2023-04-01 21:07:22,284 INFO L78 Accepts]: Start accepts. Automaton has 7065 states and 12525 transitions. Word has length 984 [2023-04-01 21:07:22,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:07:22,285 INFO L495 AbstractCegarLoop]: Abstraction has 7065 states and 12525 transitions. [2023-04-01 21:07:22,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 139.14285714285714) internal successors, (974), 5 states have internal predecessors, (974), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 21:07:22,285 INFO L276 IsEmpty]: Start isEmpty. Operand 7065 states and 12525 transitions. [2023-04-01 21:07:22,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 987 [2023-04-01 21:07:22,316 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:07:22,316 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 21:07:22,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 21:07:22,317 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:07:22,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:07:22,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1301193380, now seen corresponding path program 1 times [2023-04-01 21:07:22,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:07:22,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200646946] [2023-04-01 21:07:22,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:07:22,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:07:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:23,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:07:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:23,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:07:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:23,775 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 21:07:23,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:07:23,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200646946] [2023-04-01 21:07:23,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200646946] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 21:07:23,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 21:07:23,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 21:07:23,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398578420] [2023-04-01 21:07:23,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 21:07:23,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 21:07:23,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:07:23,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 21:07:23,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 21:07:23,780 INFO L87 Difference]: Start difference. First operand 7065 states and 12525 transitions. Second operand has 8 states, 7 states have (on average 139.42857142857142) internal successors, (976), 5 states have internal predecessors, (976), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 21:07:33,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:07:33,782 INFO L93 Difference]: Finished difference Result 27650 states and 51526 transitions. [2023-04-01 21:07:33,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-01 21:07:33,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 139.42857142857142) internal successors, (976), 5 states have internal predecessors, (976), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 986 [2023-04-01 21:07:33,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:07:33,850 INFO L225 Difference]: With dead ends: 27650 [2023-04-01 21:07:33,850 INFO L226 Difference]: Without dead ends: 20591 [2023-04-01 21:07:33,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-04-01 21:07:33,868 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 9963 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 9274 mSolverCounterSat, 2370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9963 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 11644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2370 IncrementalHoareTripleChecker+Valid, 9274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-04-01 21:07:33,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9963 Valid, 958 Invalid, 11644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2370 Valid, 9274 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-04-01 21:07:33,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20591 states. [2023-04-01 21:07:34,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20591 to 20262. [2023-04-01 21:07:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20262 states, 19751 states have (on average 1.5978937775302515) internal successors, (31560), 19826 states have internal predecessors, (31560), 92 states have call successors, (92), 92 states have call predecessors, (92), 418 states have return successors, (2364), 343 states have call predecessors, (2364), 91 states have call successors, (2364) [2023-04-01 21:07:34,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20262 states to 20262 states and 34016 transitions. [2023-04-01 21:07:34,445 INFO L78 Accepts]: Start accepts. Automaton has 20262 states and 34016 transitions. Word has length 986 [2023-04-01 21:07:34,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:07:34,446 INFO L495 AbstractCegarLoop]: Abstraction has 20262 states and 34016 transitions. [2023-04-01 21:07:34,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 139.42857142857142) internal successors, (976), 5 states have internal predecessors, (976), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 21:07:34,447 INFO L276 IsEmpty]: Start isEmpty. Operand 20262 states and 34016 transitions. [2023-04-01 21:07:34,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1015 [2023-04-01 21:07:34,496 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:07:34,497 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 21:07:34,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 21:07:34,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:07:34,498 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:07:34,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1879618186, now seen corresponding path program 1 times [2023-04-01 21:07:34,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:07:34,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087813645] [2023-04-01 21:07:34,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:07:34,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:07:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:35,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:07:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:35,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:07:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-01 21:07:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:35,731 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-01 21:07:35,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:07:35,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087813645] [2023-04-01 21:07:35,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087813645] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 21:07:35,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122909147] [2023-04-01 21:07:35,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:07:35,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 21:07:35,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 21:07:35,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 21:07:35,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 21:07:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:36,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 2359 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 21:07:36,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 21:07:36,349 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:07:36,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 21:07:36,476 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:07:36,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122909147] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 21:07:36,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 21:07:36,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2023-04-01 21:07:36,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142853764] [2023-04-01 21:07:36,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 21:07:36,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-01 21:07:36,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:07:36,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-01 21:07:36,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-01 21:07:36,480 INFO L87 Difference]: Start difference. First operand 20262 states and 34016 transitions. Second operand has 11 states, 11 states have (on average 94.27272727272727) internal successors, (1037), 9 states have internal predecessors, (1037), 4 states have call successors, (14), 7 states have call predecessors, (14), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-04-01 21:07:51,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:07:51,400 INFO L93 Difference]: Finished difference Result 86003 states and 168308 transitions. [2023-04-01 21:07:51,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-04-01 21:07:51,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 94.27272727272727) internal successors, (1037), 9 states have internal predecessors, (1037), 4 states have call successors, (14), 7 states have call predecessors, (14), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 1014 [2023-04-01 21:07:51,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:07:51,667 INFO L225 Difference]: With dead ends: 86003 [2023-04-01 21:07:51,667 INFO L226 Difference]: Without dead ends: 65747 [2023-04-01 21:07:51,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2108 GetRequests, 2059 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=448, Invalid=1904, Unknown=0, NotChecked=0, Total=2352 [2023-04-01 21:07:51,737 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 16721 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 10730 mSolverCounterSat, 6522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16721 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 17252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6522 IncrementalHoareTripleChecker+Valid, 10730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-04-01 21:07:51,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16721 Valid, 1076 Invalid, 17252 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6522 Valid, 10730 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2023-04-01 21:07:51,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65747 states. [2023-04-01 21:07:53,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65747 to 63444. [2023-04-01 21:07:53,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63444 states, 60218 states have (on average 1.3493971902089077) internal successors, (81258), 61017 states have internal predecessors, (81258), 272 states have call successors, (272), 272 states have call predecessors, (272), 2953 states have return successors, (19988), 2154 states have call predecessors, (19988), 271 states have call successors, (19988) [2023-04-01 21:07:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63444 states to 63444 states and 101518 transitions. [2023-04-01 21:07:54,032 INFO L78 Accepts]: Start accepts. Automaton has 63444 states and 101518 transitions. Word has length 1014 [2023-04-01 21:07:54,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:07:54,033 INFO L495 AbstractCegarLoop]: Abstraction has 63444 states and 101518 transitions. [2023-04-01 21:07:54,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 94.27272727272727) internal successors, (1037), 9 states have internal predecessors, (1037), 4 states have call successors, (14), 7 states have call predecessors, (14), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-04-01 21:07:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand 63444 states and 101518 transitions. [2023-04-01 21:07:54,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1022 [2023-04-01 21:07:54,247 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:07:54,248 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 21:07:54,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 21:07:54,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 21:07:54,461 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:07:54,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:07:54,465 INFO L85 PathProgramCache]: Analyzing trace with hash -414889474, now seen corresponding path program 1 times [2023-04-01 21:07:54,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:07:54,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646153738] [2023-04-01 21:07:54,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:07:54,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:07:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:07:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:57,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:07:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:57,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-01 21:07:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:57,829 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-01 21:07:57,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:07:57,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646153738] [2023-04-01 21:07:57,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646153738] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 21:07:57,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728365752] [2023-04-01 21:07:57,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:07:57,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 21:07:57,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 21:07:57,857 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 21:07:57,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 21:07:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:07:58,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 2354 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 21:07:58,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 21:07:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:07:58,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 21:07:58,580 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:07:58,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728365752] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 21:07:58,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 21:07:58,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2023-04-01 21:07:58,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076052953] [2023-04-01 21:07:58,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 21:07:58,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-01 21:07:58,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:07:58,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-01 21:07:58,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-04-01 21:07:58,584 INFO L87 Difference]: Start difference. First operand 63444 states and 101518 transitions. Second operand has 13 states, 13 states have (on average 82.6923076923077) internal successors, (1075), 11 states have internal predecessors, (1075), 5 states have call successors, (14), 7 states have call predecessors, (14), 6 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-01 21:08:22,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:08:22,059 INFO L93 Difference]: Finished difference Result 367446 states and 708683 transitions. [2023-04-01 21:08:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-04-01 21:08:22,061 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 82.6923076923077) internal successors, (1075), 11 states have internal predecessors, (1075), 5 states have call successors, (14), 7 states have call predecessors, (14), 6 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 1021 [2023-04-01 21:08:22,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:08:24,132 INFO L225 Difference]: With dead ends: 367446 [2023-04-01 21:08:24,132 INFO L226 Difference]: Without dead ends: 304008 [2023-04-01 21:08:24,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2167 GetRequests, 2094 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1814 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=896, Invalid=4506, Unknown=0, NotChecked=0, Total=5402 [2023-04-01 21:08:24,378 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 28227 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 16261 mSolverCounterSat, 6699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28227 SdHoareTripleChecker+Valid, 1841 SdHoareTripleChecker+Invalid, 22960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6699 IncrementalHoareTripleChecker+Valid, 16261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2023-04-01 21:08:24,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28227 Valid, 1841 Invalid, 22960 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6699 Valid, 16261 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2023-04-01 21:08:24,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304008 states. [2023-04-01 21:08:32,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304008 to 301370. [2023-04-01 21:08:33,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301370 states, 288941 states have (on average 1.2845702063743116) internal successors, (371165), 292420 states have internal predecessors, (371165), 1352 states have call successors, (1352), 1352 states have call predecessors, (1352), 11076 states have return successors, (155341), 7597 states have call predecessors, (155341), 1351 states have call successors, (155341) [2023-04-01 21:08:34,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301370 states to 301370 states and 527858 transitions. [2023-04-01 21:08:34,762 INFO L78 Accepts]: Start accepts. Automaton has 301370 states and 527858 transitions. Word has length 1021 [2023-04-01 21:08:34,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:08:34,763 INFO L495 AbstractCegarLoop]: Abstraction has 301370 states and 527858 transitions. [2023-04-01 21:08:34,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 82.6923076923077) internal successors, (1075), 11 states have internal predecessors, (1075), 5 states have call successors, (14), 7 states have call predecessors, (14), 6 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2023-04-01 21:08:34,763 INFO L276 IsEmpty]: Start isEmpty. Operand 301370 states and 527858 transitions. [2023-04-01 21:08:36,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1065 [2023-04-01 21:08:36,517 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:08:36,518 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 21:08:36,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 21:08:36,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 21:08:36,719 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:08:36,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:08:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1869161347, now seen corresponding path program 1 times [2023-04-01 21:08:36,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:08:36,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106049263] [2023-04-01 21:08:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:08:36,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:08:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:08:37,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:08:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:08:38,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:08:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:08:38,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-01 21:08:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:08:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 21:08:38,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:08:38,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106049263] [2023-04-01 21:08:38,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106049263] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 21:08:38,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450603070] [2023-04-01 21:08:38,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:08:38,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 21:08:38,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 21:08:38,076 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 21:08:38,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 21:08:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:08:38,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 2400 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 21:08:38,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 21:08:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:08:38,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 21:08:38,769 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:08:38,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450603070] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 21:08:38,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 21:08:38,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2023-04-01 21:08:38,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520301109] [2023-04-01 21:08:38,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 21:08:38,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-01 21:08:38,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:08:38,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-01 21:08:38,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-01 21:08:38,774 INFO L87 Difference]: Start difference. First operand 301370 states and 527858 transitions. Second operand has 12 states, 12 states have (on average 90.25) internal successors, (1083), 10 states have internal predecessors, (1083), 5 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 21:08:59,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:08:59,485 INFO L93 Difference]: Finished difference Result 704519 states and 1320541 transitions. [2023-04-01 21:08:59,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-01 21:08:59,486 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 90.25) internal successors, (1083), 10 states have internal predecessors, (1083), 5 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 1064 [2023-04-01 21:08:59,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:09:01,929 INFO L225 Difference]: With dead ends: 704519 [2023-04-01 21:09:01,929 INFO L226 Difference]: Without dead ends: 403155 [2023-04-01 21:09:02,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2160 GetRequests, 2135 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2023-04-01 21:09:02,598 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 14097 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 13067 mSolverCounterSat, 4340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14097 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 17407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4340 IncrementalHoareTripleChecker+Valid, 13067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-04-01 21:09:02,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14097 Valid, 1078 Invalid, 17407 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4340 Valid, 13067 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2023-04-01 21:09:03,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403155 states. [2023-04-01 21:09:14,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403155 to 400880. [2023-04-01 21:09:14,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400880 states, 384446 states have (on average 1.2228453410882152) internal successors, (470118), 389360 states have internal predecessors, (470118), 1802 states have call successors, (1802), 1802 states have call predecessors, (1802), 14631 states have return successors, (181750), 9717 states have call predecessors, (181750), 1801 states have call successors, (181750) [2023-04-01 21:09:17,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400880 states to 400880 states and 653670 transitions. [2023-04-01 21:09:17,841 INFO L78 Accepts]: Start accepts. Automaton has 400880 states and 653670 transitions. Word has length 1064 [2023-04-01 21:09:17,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 21:09:17,842 INFO L495 AbstractCegarLoop]: Abstraction has 400880 states and 653670 transitions. [2023-04-01 21:09:17,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 90.25) internal successors, (1083), 10 states have internal predecessors, (1083), 5 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 21:09:17,842 INFO L276 IsEmpty]: Start isEmpty. Operand 400880 states and 653670 transitions. [2023-04-01 21:09:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1087 [2023-04-01 21:09:19,919 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:09:19,920 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 21:09:19,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 21:09:20,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 21:09:20,130 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:09:20,134 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:09:20,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1533114955, now seen corresponding path program 1 times [2023-04-01 21:09:20,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:09:20,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495923095] [2023-04-01 21:09:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:09:20,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:09:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:09:21,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:09:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:09:21,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 21:09:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:09:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-01 21:09:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:09:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 102 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-01 21:09:21,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:09:21,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495923095] [2023-04-01 21:09:21,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495923095] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 21:09:21,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696387574] [2023-04-01 21:09:21,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:09:21,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 21:09:21,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 21:09:21,837 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 21:09:21,884 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 21:09:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:09:22,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 2424 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-01 21:09:22,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 21:09:22,483 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-04-01 21:09:22,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 21:09:22,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696387574] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 21:09:22,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 21:09:22,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-04-01 21:09:22,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442698170] [2023-04-01 21:09:22,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 21:09:22,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 21:09:22,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:09:22,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 21:09:22,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-01 21:09:22,486 INFO L87 Difference]: Start difference. First operand 400880 states and 653670 transitions. Second operand has 5 states, 5 states have (on average 197.4) internal successors, (987), 4 states have internal predecessors, (987), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 21:09:39,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 21:09:39,883 INFO L93 Difference]: Finished difference Result 1164040 states and 2017238 transitions. [2023-04-01 21:09:39,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 21:09:39,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 197.4) internal successors, (987), 4 states have internal predecessors, (987), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 1086 [2023-04-01 21:09:39,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 21:09:45,414 INFO L225 Difference]: With dead ends: 1164040 [2023-04-01 21:09:45,414 INFO L226 Difference]: Without dead ends: 763166 [2023-04-01 21:09:46,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1096 GetRequests, 1087 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-04-01 21:09:46,376 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 4180 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 6346 mSolverCounterSat, 1302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4180 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 7648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1302 IncrementalHoareTripleChecker+Valid, 6346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-01 21:09:46,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4180 Valid, 1010 Invalid, 7648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1302 Valid, 6346 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-01 21:09:47,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763166 states.