/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/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 06:57:24,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 06:57:24,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 06:57:24,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 06:57:24,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 06:57:24,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 06:57:24,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 06:57:24,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 06:57:24,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 06:57:24,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 06:57:24,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 06:57:24,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 06:57:24,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 06:57:24,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 06:57:24,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 06:57:24,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 06:57:24,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 06:57:24,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 06:57:24,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 06:57:24,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 06:57:24,783 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 [2023-04-02 06:57:24,814 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 06:57:24,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 06:57:24,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 06:57:24,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 06:57:24,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 06:57:24,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 06:57:24,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 06:57:24,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 06:57:24,817 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 06:57:24,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 06:57:24,818 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 06:57:24,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 06:57:24,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 06:57:24,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 06:57:24,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 06:57:24,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 06:57:24,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 06:57:24,818 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 06:57:24,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 06:57:24,819 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 06:57:24,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 06:57:24,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 06:57:24,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 06:57:24,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 06:57:24,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:57:24,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 06:57:24,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 06:57:24,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 06:57:24,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 06:57:24,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 06:57:24,820 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 06:57:24,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 06:57:24,820 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 06:57:24,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 06:57:24,821 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 06:57:24,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 06:57:25,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 06:57:25,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 06:57:25,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 06:57:25,055 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 06:57:25,056 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 06:57:25,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2023-04-02 06:57:26,270 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 06:57:26,705 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 06:57:26,705 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2023-04-02 06:57:26,722 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75a96820e/74ddafd1bfcc43e991a5161526d5a196/FLAGf824e2023 [2023-04-02 06:57:26,734 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75a96820e/74ddafd1bfcc43e991a5161526d5a196 [2023-04-02 06:57:26,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 06:57:26,738 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 06:57:26,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 06:57:26,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 06:57:26,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 06:57:26,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:57:26" (1/1) ... [2023-04-02 06:57:26,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344a83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:26, skipping insertion in model container [2023-04-02 06:57:26,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 06:57:26" (1/1) ... [2023-04-02 06:57:26,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 06:57:26,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 06:57:27,373 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/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[35225,35238] [2023-04-02 06:57:27,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:57:27,572 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 06:57:27,826 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/seq-mthreaded-reduced/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[35225,35238] [2023-04-02 06:57:27,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 06:57:27,977 INFO L208 MainTranslator]: Completed translation [2023-04-02 06:57:27,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:27 WrapperNode [2023-04-02 06:57:27,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 06:57:27,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 06:57:27,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 06:57:27,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 06:57:27,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:27" (1/1) ... [2023-04-02 06:57:27,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:27" (1/1) ... [2023-04-02 06:57:28,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:27" (1/1) ... [2023-04-02 06:57:28,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:27" (1/1) ... [2023-04-02 06:57:28,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:27" (1/1) ... [2023-04-02 06:57:28,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:27" (1/1) ... [2023-04-02 06:57:28,179 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:27" (1/1) ... [2023-04-02 06:57:28,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:27" (1/1) ... [2023-04-02 06:57:28,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 06:57:28,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 06:57:28,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 06:57:28,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 06:57:28,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:27" (1/1) ... [2023-04-02 06:57:28,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 06:57:28,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 06:57:28,229 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) [2023-04-02 06:57:28,254 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 [2023-04-02 06:57:28,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 06:57:28,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 06:57:28,284 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 06:57:28,284 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 06:57:28,284 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 06:57:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 06:57:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 06:57:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 06:57:28,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 06:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 06:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 06:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 06:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 06:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 06:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 06:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-04-02 06:57:28,285 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-04-02 06:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-04-02 06:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2023-04-02 06:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 06:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 06:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 06:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 06:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 06:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 06:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 06:57:28,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 06:57:28,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 06:57:28,507 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 06:57:28,509 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 06:57:30,289 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 06:57:30,309 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 06:57:30,309 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 06:57:30,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:57:30 BoogieIcfgContainer [2023-04-02 06:57:30,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 06:57:30,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 06:57:30,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 06:57:30,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 06:57:30,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 06:57:26" (1/3) ... [2023-04-02 06:57:30,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fba7d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:57:30, skipping insertion in model container [2023-04-02 06:57:30,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 06:57:27" (2/3) ... [2023-04-02 06:57:30,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fba7d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 06:57:30, skipping insertion in model container [2023-04-02 06:57:30,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 06:57:30" (3/3) ... [2023-04-02 06:57:30,322 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2023-04-02 06:57:30,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 06:57:30,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 06:57:30,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 06:57:30,434 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;@520e948e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 06:57:30,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 06:57:30,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 804 states, 789 states have (on average 1.7820025348542459) internal successors, (1406), 799 states have internal predecessors, (1406), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 06:57:30,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-04-02 06:57:30,474 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:57:30,475 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] [2023-04-02 06:57:30,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:57:30,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:57:30,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1870510118, now seen corresponding path program 1 times [2023-04-02 06:57:30,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:57:30,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472978362] [2023-04-02 06:57:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:57:30,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:57:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:31,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:57:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:31,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:57:31,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:57:31,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472978362] [2023-04-02 06:57:31,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472978362] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:57:31,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:57:31,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:57:31,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788175315] [2023-04-02 06:57:31,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:57:31,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:57:31,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:57:31,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:57:31,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:57:31,988 INFO L87 Difference]: Start difference. First operand has 804 states, 789 states have (on average 1.7820025348542459) internal successors, (1406), 799 states have internal predecessors, (1406), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:36,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:57:36,009 INFO L93 Difference]: Finished difference Result 1517 states and 2621 transitions. [2023-04-02 06:57:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:57:36,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2023-04-02 06:57:36,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:57:36,041 INFO L225 Difference]: With dead ends: 1517 [2023-04-02 06:57:36,041 INFO L226 Difference]: Without dead ends: 1280 [2023-04-02 06:57:36,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:57:36,055 INFO L413 NwaCegarLoop]: 1348 mSDtfsCounter, 862 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:57:36,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 2479 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1532 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:57:36,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2023-04-02 06:57:36,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1278. [2023-04-02 06:57:36,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1274 states have (on average 1.5510204081632653) internal successors, (1976), 1274 states have internal predecessors, (1976), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:36,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1979 transitions. [2023-04-02 06:57:36,195 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1979 transitions. Word has length 324 [2023-04-02 06:57:36,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:57:36,199 INFO L495 AbstractCegarLoop]: Abstraction has 1278 states and 1979 transitions. [2023-04-02 06:57:36,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:36,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1979 transitions. [2023-04-02 06:57:36,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-04-02 06:57:36,207 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:57:36,208 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] [2023-04-02 06:57:36,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 06:57:36,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:57:36,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:57:36,209 INFO L85 PathProgramCache]: Analyzing trace with hash -127429012, now seen corresponding path program 1 times [2023-04-02 06:57:36,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:57:36,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810788233] [2023-04-02 06:57:36,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:57:36,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:57:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:36,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:57:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:37,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:57:37,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:57:37,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810788233] [2023-04-02 06:57:37,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810788233] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:57:37,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:57:37,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:57:37,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224954288] [2023-04-02 06:57:37,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:57:37,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:57:37,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:57:37,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:57:37,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:57:37,011 INFO L87 Difference]: Start difference. First operand 1278 states and 1979 transitions. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:40,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:57:40,225 INFO L93 Difference]: Finished difference Result 2600 states and 4040 transitions. [2023-04-02 06:57:40,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:57:40,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2023-04-02 06:57:40,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:57:40,236 INFO L225 Difference]: With dead ends: 2600 [2023-04-02 06:57:40,237 INFO L226 Difference]: Without dead ends: 2240 [2023-04-02 06:57:40,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:57:40,241 INFO L413 NwaCegarLoop]: 1161 mSDtfsCounter, 697 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-04-02 06:57:40,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 2139 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-04-02 06:57:40,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2023-04-02 06:57:40,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2238. [2023-04-02 06:57:40,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 2234 states have (on average 1.5452103849597134) internal successors, (3452), 2234 states have internal predecessors, (3452), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 3455 transitions. [2023-04-02 06:57:40,330 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 3455 transitions. Word has length 324 [2023-04-02 06:57:40,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:57:40,331 INFO L495 AbstractCegarLoop]: Abstraction has 2238 states and 3455 transitions. [2023-04-02 06:57:40,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:40,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 3455 transitions. [2023-04-02 06:57:40,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-04-02 06:57:40,356 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:57:40,356 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] [2023-04-02 06:57:40,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 06:57:40,357 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:57:40,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:57:40,358 INFO L85 PathProgramCache]: Analyzing trace with hash -941789149, now seen corresponding path program 1 times [2023-04-02 06:57:40,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:57:40,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38155179] [2023-04-02 06:57:40,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:57:40,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:57:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:41,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:57:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:41,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:57:41,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:57:41,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38155179] [2023-04-02 06:57:41,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38155179] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:57:41,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:57:41,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:57:41,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694913841] [2023-04-02 06:57:41,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:57:41,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:57:41,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:57:41,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:57:41,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:57:41,051 INFO L87 Difference]: Start difference. First operand 2238 states and 3455 transitions. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:44,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:57:44,078 INFO L93 Difference]: Finished difference Result 4798 states and 7437 transitions. [2023-04-02 06:57:44,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:57:44,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2023-04-02 06:57:44,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:57:44,097 INFO L225 Difference]: With dead ends: 4798 [2023-04-02 06:57:44,098 INFO L226 Difference]: Without dead ends: 4124 [2023-04-02 06:57:44,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:57:44,102 INFO L413 NwaCegarLoop]: 1161 mSDtfsCounter, 689 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-02 06:57:44,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 2125 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-02 06:57:44,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4124 states. [2023-04-02 06:57:44,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4124 to 4122. [2023-04-02 06:57:44,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4122 states, 4118 states have (on average 1.5395823215152986) internal successors, (6340), 4118 states have internal predecessors, (6340), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4122 states to 4122 states and 6343 transitions. [2023-04-02 06:57:44,304 INFO L78 Accepts]: Start accepts. Automaton has 4122 states and 6343 transitions. Word has length 324 [2023-04-02 06:57:44,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:57:44,305 INFO L495 AbstractCegarLoop]: Abstraction has 4122 states and 6343 transitions. [2023-04-02 06:57:44,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:44,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4122 states and 6343 transitions. [2023-04-02 06:57:44,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-04-02 06:57:44,316 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:57:44,316 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] [2023-04-02 06:57:44,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 06:57:44,316 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:57:44,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:57:44,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1072121675, now seen corresponding path program 1 times [2023-04-02 06:57:44,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:57:44,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132591551] [2023-04-02 06:57:44,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:57:44,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:57:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:44,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:57:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:44,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:57:44,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:57:44,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132591551] [2023-04-02 06:57:44,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132591551] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:57:44,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:57:44,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:57:44,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033207671] [2023-04-02 06:57:44,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:57:44,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:57:44,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:57:44,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:57:44,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:57:44,970 INFO L87 Difference]: Start difference. First operand 4122 states and 6343 transitions. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:47,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:57:47,796 INFO L93 Difference]: Finished difference Result 9078 states and 14029 transitions. [2023-04-02 06:57:47,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:57:47,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2023-04-02 06:57:47,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:57:47,835 INFO L225 Difference]: With dead ends: 9078 [2023-04-02 06:57:47,835 INFO L226 Difference]: Without dead ends: 7820 [2023-04-02 06:57:47,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:57:47,851 INFO L413 NwaCegarLoop]: 1161 mSDtfsCounter, 681 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:57:47,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 2111 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 06:57:47,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7820 states. [2023-04-02 06:57:48,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7820 to 7818. [2023-04-02 06:57:48,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7818 states, 7814 states have (on average 1.5341694394676222) internal successors, (11988), 7814 states have internal predecessors, (11988), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:48,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7818 states to 7818 states and 11991 transitions. [2023-04-02 06:57:48,181 INFO L78 Accepts]: Start accepts. Automaton has 7818 states and 11991 transitions. Word has length 324 [2023-04-02 06:57:48,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:57:48,182 INFO L495 AbstractCegarLoop]: Abstraction has 7818 states and 11991 transitions. [2023-04-02 06:57:48,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:48,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7818 states and 11991 transitions. [2023-04-02 06:57:48,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-04-02 06:57:48,199 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:57:48,199 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] [2023-04-02 06:57:48,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 06:57:48,199 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:57:48,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:57:48,200 INFO L85 PathProgramCache]: Analyzing trace with hash -247456284, now seen corresponding path program 1 times [2023-04-02 06:57:48,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:57:48,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393044886] [2023-04-02 06:57:48,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:57:48,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:57:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:49,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:57:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:57:49,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:57:49,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393044886] [2023-04-02 06:57:49,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393044886] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:57:49,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:57:49,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:57:49,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577086306] [2023-04-02 06:57:49,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:57:49,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 06:57:49,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:57:49,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 06:57:49,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:57:49,530 INFO L87 Difference]: Start difference. First operand 7818 states and 11991 transitions. Second operand has 5 states, 5 states have (on average 64.2) internal successors, (321), 4 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:54,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:57:54,369 INFO L93 Difference]: Finished difference Result 23127 states and 35430 transitions. [2023-04-02 06:57:54,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:57:54,373 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 64.2) internal successors, (321), 4 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2023-04-02 06:57:54,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:57:54,425 INFO L225 Difference]: With dead ends: 23127 [2023-04-02 06:57:54,425 INFO L226 Difference]: Without dead ends: 15324 [2023-04-02 06:57:54,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:57:54,443 INFO L413 NwaCegarLoop]: 1893 mSDtfsCounter, 2756 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 1983 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2756 SdHoareTripleChecker+Valid, 3048 SdHoareTripleChecker+Invalid, 2011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-02 06:57:54,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2756 Valid, 3048 Invalid, 2011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1983 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-02 06:57:54,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15324 states. [2023-04-02 06:57:55,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15324 to 15322. [2023-04-02 06:57:55,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15322 states, 15318 states have (on average 1.5245462854158507) internal successors, (23353), 15318 states have internal predecessors, (23353), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:55,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15322 states to 15322 states and 23356 transitions. [2023-04-02 06:57:55,237 INFO L78 Accepts]: Start accepts. Automaton has 15322 states and 23356 transitions. Word has length 324 [2023-04-02 06:57:55,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:57:55,238 INFO L495 AbstractCegarLoop]: Abstraction has 15322 states and 23356 transitions. [2023-04-02 06:57:55,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.2) internal successors, (321), 4 states have internal predecessors, (321), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:57:55,239 INFO L276 IsEmpty]: Start isEmpty. Operand 15322 states and 23356 transitions. [2023-04-02 06:57:55,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2023-04-02 06:57:55,266 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:57:55,266 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] [2023-04-02 06:57:55,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 06:57:55,267 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:57:55,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:57:55,267 INFO L85 PathProgramCache]: Analyzing trace with hash -41876105, now seen corresponding path program 1 times [2023-04-02 06:57:55,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:57:55,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168898278] [2023-04-02 06:57:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:57:55,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:57:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:55,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:57:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:57:55,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:57:55,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:57:55,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168898278] [2023-04-02 06:57:55,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168898278] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:57:55,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:57:55,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:57:55,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463880827] [2023-04-02 06:57:55,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:57:55,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:57:55,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:57:55,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:57:55,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:57:55,826 INFO L87 Difference]: Start difference. First operand 15322 states and 23356 transitions. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:01,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:58:01,172 INFO L93 Difference]: Finished difference Result 45227 states and 68824 transitions. [2023-04-02 06:58:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 06:58:01,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2023-04-02 06:58:01,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:58:01,255 INFO L225 Difference]: With dead ends: 45227 [2023-04-02 06:58:01,256 INFO L226 Difference]: Without dead ends: 30034 [2023-04-02 06:58:01,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:58:01,290 INFO L413 NwaCegarLoop]: 2361 mSDtfsCounter, 1077 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 3522 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:58:01,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 3522 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 06:58:01,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30034 states. [2023-04-02 06:58:02,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30034 to 30032. [2023-04-02 06:58:02,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30032 states, 30028 states have (on average 1.5147861995470895) internal successors, (45486), 30028 states have internal predecessors, (45486), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:02,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30032 states to 30032 states and 45489 transitions. [2023-04-02 06:58:02,838 INFO L78 Accepts]: Start accepts. Automaton has 30032 states and 45489 transitions. Word has length 326 [2023-04-02 06:58:02,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:58:02,839 INFO L495 AbstractCegarLoop]: Abstraction has 30032 states and 45489 transitions. [2023-04-02 06:58:02,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:02,839 INFO L276 IsEmpty]: Start isEmpty. Operand 30032 states and 45489 transitions. [2023-04-02 06:58:02,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2023-04-02 06:58:02,893 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:58:02,893 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] [2023-04-02 06:58:02,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 06:58:02,893 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:58:02,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:58:02,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2104012548, now seen corresponding path program 1 times [2023-04-02 06:58:02,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:58:02,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561106302] [2023-04-02 06:58:02,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:58:02,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:58:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:58:03,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:58:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:58:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:58:03,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:58:03,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561106302] [2023-04-02 06:58:03,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561106302] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:58:03,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:58:03,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:58:03,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744052918] [2023-04-02 06:58:03,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:58:03,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:58:03,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:58:03,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:58:03,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:58:03,439 INFO L87 Difference]: Start difference. First operand 30032 states and 45489 transitions. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:10,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:58:10,071 INFO L93 Difference]: Finished difference Result 90021 states and 136343 transitions. [2023-04-02 06:58:10,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 06:58:10,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2023-04-02 06:58:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:58:10,247 INFO L225 Difference]: With dead ends: 90021 [2023-04-02 06:58:10,247 INFO L226 Difference]: Without dead ends: 60031 [2023-04-02 06:58:10,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:58:10,315 INFO L413 NwaCegarLoop]: 2418 mSDtfsCounter, 1205 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:58:10,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 3629 Invalid, 2431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 06:58:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60031 states. [2023-04-02 06:58:12,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60031 to 30051. [2023-04-02 06:58:12,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30051 states, 30047 states have (on average 1.5147602090058907) internal successors, (45514), 30047 states have internal predecessors, (45514), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:12,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30051 states to 30051 states and 45517 transitions. [2023-04-02 06:58:12,256 INFO L78 Accepts]: Start accepts. Automaton has 30051 states and 45517 transitions. Word has length 326 [2023-04-02 06:58:12,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:58:12,257 INFO L495 AbstractCegarLoop]: Abstraction has 30051 states and 45517 transitions. [2023-04-02 06:58:12,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:12,257 INFO L276 IsEmpty]: Start isEmpty. Operand 30051 states and 45517 transitions. [2023-04-02 06:58:12,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-04-02 06:58:12,311 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:58:12,311 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] [2023-04-02 06:58:12,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 06:58:12,312 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:58:12,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:58:12,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1504278854, now seen corresponding path program 1 times [2023-04-02 06:58:12,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:58:12,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563044899] [2023-04-02 06:58:12,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:58:12,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:58:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:58:12,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:58:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:58:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:58:12,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:58:12,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563044899] [2023-04-02 06:58:12,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563044899] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:58:12,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:58:12,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:58:12,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897791735] [2023-04-02 06:58:12,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:58:12,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:58:12,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:58:12,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:58:12,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:58:12,819 INFO L87 Difference]: Start difference. First operand 30051 states and 45517 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:20,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:58:20,429 INFO L93 Difference]: Finished difference Result 90040 states and 136364 transitions. [2023-04-02 06:58:20,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 06:58:20,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 327 [2023-04-02 06:58:20,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:58:20,553 INFO L225 Difference]: With dead ends: 90040 [2023-04-02 06:58:20,554 INFO L226 Difference]: Without dead ends: 60049 [2023-04-02 06:58:20,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:58:20,612 INFO L413 NwaCegarLoop]: 2418 mSDtfsCounter, 1200 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:58:20,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 3629 Invalid, 2431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 06:58:20,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60049 states. [2023-04-02 06:58:22,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60049 to 30069. [2023-04-02 06:58:22,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30069 states, 30065 states have (on average 1.5145518044237485) internal successors, (45535), 30065 states have internal predecessors, (45535), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:22,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30069 states to 30069 states and 45538 transitions. [2023-04-02 06:58:22,933 INFO L78 Accepts]: Start accepts. Automaton has 30069 states and 45538 transitions. Word has length 327 [2023-04-02 06:58:22,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:58:22,933 INFO L495 AbstractCegarLoop]: Abstraction has 30069 states and 45538 transitions. [2023-04-02 06:58:22,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:22,934 INFO L276 IsEmpty]: Start isEmpty. Operand 30069 states and 45538 transitions. [2023-04-02 06:58:22,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-04-02 06:58:22,971 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:58:22,971 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] [2023-04-02 06:58:22,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 06:58:22,972 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:58:22,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:58:22,973 INFO L85 PathProgramCache]: Analyzing trace with hash -247696078, now seen corresponding path program 1 times [2023-04-02 06:58:22,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:58:22,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345602648] [2023-04-02 06:58:22,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:58:22,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:58:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:58:23,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:58:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:58:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:58:23,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:58:23,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345602648] [2023-04-02 06:58:23,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345602648] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:58:23,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:58:23,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 06:58:23,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452179605] [2023-04-02 06:58:23,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:58:23,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 06:58:23,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:58:23,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 06:58:23,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:58:23,494 INFO L87 Difference]: Start difference. First operand 30069 states and 45538 transitions. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:31,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:58:31,560 INFO L93 Difference]: Finished difference Result 85348 states and 129001 transitions. [2023-04-02 06:58:31,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 06:58:31,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 328 [2023-04-02 06:58:31,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:58:31,656 INFO L225 Difference]: With dead ends: 85348 [2023-04-02 06:58:31,656 INFO L226 Difference]: Without dead ends: 55524 [2023-04-02 06:58:31,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 06:58:31,694 INFO L413 NwaCegarLoop]: 2370 mSDtfsCounter, 1071 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 2428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:58:31,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 3531 Invalid, 2428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 06:58:31,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55524 states. [2023-04-02 06:58:35,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55524 to 55522. [2023-04-02 06:58:35,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55522 states, 55518 states have (on average 1.503386289131453) internal successors, (83465), 55518 states have internal predecessors, (83465), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:35,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55522 states to 55522 states and 83468 transitions. [2023-04-02 06:58:35,558 INFO L78 Accepts]: Start accepts. Automaton has 55522 states and 83468 transitions. Word has length 328 [2023-04-02 06:58:35,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:58:35,559 INFO L495 AbstractCegarLoop]: Abstraction has 55522 states and 83468 transitions. [2023-04-02 06:58:35,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:35,559 INFO L276 IsEmpty]: Start isEmpty. Operand 55522 states and 83468 transitions. [2023-04-02 06:58:35,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-04-02 06:58:35,623 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:58:35,623 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] [2023-04-02 06:58:35,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 06:58:35,624 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:58:35,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:58:35,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1558324239, now seen corresponding path program 1 times [2023-04-02 06:58:35,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:58:35,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080010437] [2023-04-02 06:58:35,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:58:35,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:58:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:58:36,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:58:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:58:36,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:58:36,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:58:36,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080010437] [2023-04-02 06:58:36,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080010437] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:58:36,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:58:36,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 06:58:36,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888866449] [2023-04-02 06:58:36,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:58:36,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:58:36,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:58:36,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:58:36,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:58:36,906 INFO L87 Difference]: Start difference. First operand 55522 states and 83468 transitions. Second operand has 6 states, 6 states have (on average 54.166666666666664) internal successors, (325), 5 states have internal predecessors, (325), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:47,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:58:47,585 INFO L93 Difference]: Finished difference Result 163946 states and 246017 transitions. [2023-04-02 06:58:47,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:58:47,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 54.166666666666664) internal successors, (325), 5 states have internal predecessors, (325), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 328 [2023-04-02 06:58:47,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:58:47,803 INFO L225 Difference]: With dead ends: 163946 [2023-04-02 06:58:47,804 INFO L226 Difference]: Without dead ends: 108483 [2023-04-02 06:58:47,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:58:47,877 INFO L413 NwaCegarLoop]: 1833 mSDtfsCounter, 3988 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 1923 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3988 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 06:58:47,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3988 Valid, 2988 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1923 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 06:58:47,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108483 states. [2023-04-02 06:58:56,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108483 to 108481. [2023-04-02 06:58:56,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108481 states, 108477 states have (on average 1.491929164707726) internal successors, (161840), 108477 states have internal predecessors, (161840), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:56,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108481 states to 108481 states and 161843 transitions. [2023-04-02 06:58:56,740 INFO L78 Accepts]: Start accepts. Automaton has 108481 states and 161843 transitions. Word has length 328 [2023-04-02 06:58:56,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:58:56,741 INFO L495 AbstractCegarLoop]: Abstraction has 108481 states and 161843 transitions. [2023-04-02 06:58:56,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.166666666666664) internal successors, (325), 5 states have internal predecessors, (325), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:58:56,741 INFO L276 IsEmpty]: Start isEmpty. Operand 108481 states and 161843 transitions. [2023-04-02 06:58:56,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-04-02 06:58:56,868 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:58:56,869 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] [2023-04-02 06:58:56,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 06:58:56,869 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:58:56,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:58:56,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1621319205, now seen corresponding path program 1 times [2023-04-02 06:58:56,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:58:56,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110846819] [2023-04-02 06:58:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:58:56,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:58:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:58:58,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:58:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:58:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:58:58,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:58:58,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110846819] [2023-04-02 06:58:58,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110846819] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:58:58,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:58:58,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 06:58:58,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803444737] [2023-04-02 06:58:58,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:58:58,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 06:58:58,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:58:58,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 06:58:58,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:58:58,104 INFO L87 Difference]: Start difference. First operand 108481 states and 161843 transitions. Second operand has 6 states, 6 states have (on average 54.5) internal successors, (327), 5 states have internal predecessors, (327), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:59:18,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 06:59:18,919 INFO L93 Difference]: Finished difference Result 320300 states and 476862 transitions. [2023-04-02 06:59:18,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 06:59:18,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 54.5) internal successors, (327), 5 states have internal predecessors, (327), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 330 [2023-04-02 06:59:18,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 06:59:19,548 INFO L225 Difference]: With dead ends: 320300 [2023-04-02 06:59:19,548 INFO L226 Difference]: Without dead ends: 211940 [2023-04-02 06:59:19,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 06:59:19,667 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 3928 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 1965 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3928 SdHoareTripleChecker+Valid, 3026 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 06:59:19,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3928 Valid, 3026 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1965 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 06:59:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211940 states. [2023-04-02 06:59:38,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211940 to 211938. [2023-04-02 06:59:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211938 states, 211934 states have (on average 1.4795596742382062) internal successors, (313569), 211934 states have internal predecessors, (313569), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:59:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211938 states to 211938 states and 313572 transitions. [2023-04-02 06:59:39,003 INFO L78 Accepts]: Start accepts. Automaton has 211938 states and 313572 transitions. Word has length 330 [2023-04-02 06:59:39,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 06:59:39,004 INFO L495 AbstractCegarLoop]: Abstraction has 211938 states and 313572 transitions. [2023-04-02 06:59:39,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.5) internal successors, (327), 5 states have internal predecessors, (327), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 06:59:39,004 INFO L276 IsEmpty]: Start isEmpty. Operand 211938 states and 313572 transitions. [2023-04-02 06:59:39,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-04-02 06:59:39,692 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 06:59:39,692 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] [2023-04-02 06:59:39,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 06:59:39,693 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 06:59:39,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 06:59:39,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1045470557, now seen corresponding path program 1 times [2023-04-02 06:59:39,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 06:59:39,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744139916] [2023-04-02 06:59:39,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 06:59:39,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 06:59:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:59:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 06:59:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 06:59:40,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 06:59:40,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 06:59:40,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744139916] [2023-04-02 06:59:40,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744139916] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 06:59:40,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 06:59:40,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 06:59:40,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422834588] [2023-04-02 06:59:40,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 06:59:40,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 06:59:40,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 06:59:40,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 06:59:40,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 06:59:40,687 INFO L87 Difference]: Start difference. First operand 211938 states and 313572 transitions. Second operand has 5 states, 5 states have (on average 65.4) internal successors, (327), 4 states have internal predecessors, (327), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)