/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/recursive-simple/fibo_2calls_20-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:20:52,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:20:52,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:20:52,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:20:52,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:20:52,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:20:52,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:20:52,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:20:52,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:20:52,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:20:52,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:20:52,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:20:52,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:20:52,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:20:52,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:20:52,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:20:52,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:20:52,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:20:52,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:20:52,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:20:52,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:20:52,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:20:52,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:20:52,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:20:52,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-31 01:20:52,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:20:52,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:20:52,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:20:52,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:20:52,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:20:52,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:20:52,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:20:52,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:20:52,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:20:52,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:20:52,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:20:52,827 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 [2023-03-31 01:20:52,858 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:20:52,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:20:52,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:20:52,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:20:52,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:20:52,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:20:52,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:20:52,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:20:52,860 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:20:52,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:20:52,860 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:20:52,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:20:52,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:20:52,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:20:52,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:20:52,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:20:52,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:20:52,864 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:20:52,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:20:52,864 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:20:52,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:20:52,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:20:52,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:20:52,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:20:52,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:20:52,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:20:52,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:20:52,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:20:52,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:20:52,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:20:52,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:20:52,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:20:52,867 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:20:52,867 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:20:52,867 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:20:52,867 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:20:53,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:20:53,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:20:53,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:20:53,116 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:20:53,116 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:20:53,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_20-1.c [2023-03-31 01:20:54,296 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:20:54,457 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:20:54,457 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_20-1.c [2023-03-31 01:20:54,462 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95e0dab18/197ace18a03844b7882a0e54b19f98ab/FLAG4d71ff5bd [2023-03-31 01:20:54,473 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95e0dab18/197ace18a03844b7882a0e54b19f98ab [2023-03-31 01:20:54,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:20:54,477 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:20:54,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:20:54,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:20:54,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:20:54,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:20:54" (1/1) ... [2023-03-31 01:20:54,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@606c983b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54, skipping insertion in model container [2023-03-31 01:20:54,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:20:54" (1/1) ... [2023-03-31 01:20:54,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:20:54,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:20:54,629 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/recursive-simple/fibo_2calls_20-1.c[951,964] [2023-03-31 01:20:54,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:20:54,641 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:20:54,652 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/recursive-simple/fibo_2calls_20-1.c[951,964] [2023-03-31 01:20:54,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:20:54,662 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:20:54,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54 WrapperNode [2023-03-31 01:20:54,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:20:54,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:20:54,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:20:54,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:20:54,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54" (1/1) ... [2023-03-31 01:20:54,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54" (1/1) ... [2023-03-31 01:20:54,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54" (1/1) ... [2023-03-31 01:20:54,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54" (1/1) ... [2023-03-31 01:20:54,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54" (1/1) ... [2023-03-31 01:20:54,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54" (1/1) ... [2023-03-31 01:20:54,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54" (1/1) ... [2023-03-31 01:20:54,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54" (1/1) ... [2023-03-31 01:20:54,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:20:54,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:20:54,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:20:54,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:20:54,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54" (1/1) ... [2023-03-31 01:20:54,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:20:54,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:20:54,722 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) [2023-03-31 01:20:54,736 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 [2023-03-31 01:20:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:20:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:20:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:20:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2023-03-31 01:20:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2023-03-31 01:20:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:20:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:20:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:20:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:20:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:20:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:20:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2023-03-31 01:20:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2023-03-31 01:20:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:20:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:20:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:20:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:20:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:20:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:20:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:20:54,827 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:20:54,832 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:20:54,986 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:20:54,992 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:20:54,992 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 01:20:54,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:20:54 BoogieIcfgContainer [2023-03-31 01:20:54,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:20:54,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:20:54,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:20:55,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:20:55,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:20:54" (1/3) ... [2023-03-31 01:20:55,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5572f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:20:55, skipping insertion in model container [2023-03-31 01:20:55,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:20:54" (2/3) ... [2023-03-31 01:20:55,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5572f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:20:55, skipping insertion in model container [2023-03-31 01:20:55,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:20:54" (3/3) ... [2023-03-31 01:20:55,004 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_2calls_20-1.c [2023-03-31 01:20:55,021 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:20:55,021 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:20:55,124 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:20:55,130 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;@62c6385c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:20:55,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:20:55,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-03-31 01:20:55,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-03-31 01:20:55,142 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:20:55,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:20:55,143 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:20:55,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:20:55,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1412692817, now seen corresponding path program 1 times [2023-03-31 01:20:55,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:20:55,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065173228] [2023-03-31 01:20:55,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:20:55,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:20:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:55,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:20:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:55,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:20:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:55,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:20:55,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:20:55,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065173228] [2023-03-31 01:20:55,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065173228] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:20:55,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:20:55,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 01:20:55,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221774173] [2023-03-31 01:20:55,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:20:55,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:20:55,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:20:55,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:20:55,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:20:55,523 INFO L87 Difference]: Start difference. First operand has 34 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-31 01:20:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:20:55,772 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2023-03-31 01:20:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 01:20:55,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-03-31 01:20:55,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:20:55,781 INFO L225 Difference]: With dead ends: 48 [2023-03-31 01:20:55,782 INFO L226 Difference]: Without dead ends: 31 [2023-03-31 01:20:55,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:20:55,787 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 36 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:20:55,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 28 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 01:20:55,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-03-31 01:20:55,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-03-31 01:20:55,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-03-31 01:20:55,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-03-31 01:20:55,843 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2023-03-31 01:20:55,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:20:55,843 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-03-31 01:20:55,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-31 01:20:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-03-31 01:20:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-03-31 01:20:55,845 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:20:55,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:20:55,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:20:55,845 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:20:55,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:20:55,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1554435945, now seen corresponding path program 1 times [2023-03-31 01:20:55,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:20:55,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209600084] [2023-03-31 01:20:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:20:55,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:20:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:55,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:20:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:55,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:20:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:55,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:20:55,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:20:55,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209600084] [2023-03-31 01:20:55,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209600084] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:20:55,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:20:55,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 01:20:55,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514163607] [2023-03-31 01:20:55,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:20:55,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 01:20:55,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:20:55,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 01:20:55,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 01:20:55,969 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-31 01:20:56,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:20:56,156 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2023-03-31 01:20:56,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 01:20:56,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-03-31 01:20:56,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:20:56,161 INFO L225 Difference]: With dead ends: 37 [2023-03-31 01:20:56,161 INFO L226 Difference]: Without dead ends: 33 [2023-03-31 01:20:56,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:20:56,170 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 26 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:20:56,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 22 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 01:20:56,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-03-31 01:20:56,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2023-03-31 01:20:56,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-03-31 01:20:56,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-03-31 01:20:56,179 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 15 [2023-03-31 01:20:56,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:20:56,180 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-03-31 01:20:56,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-31 01:20:56,180 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-03-31 01:20:56,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-03-31 01:20:56,183 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:20:56,183 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:20:56,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:20:56,184 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:20:56,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:20:56,187 INFO L85 PathProgramCache]: Analyzing trace with hash 317474724, now seen corresponding path program 1 times [2023-03-31 01:20:56,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:20:56,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075954915] [2023-03-31 01:20:56,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:20:56,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:20:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:56,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:20:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:56,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:20:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:56,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:20:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:56,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:20:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:56,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:20:56,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:20:56,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075954915] [2023-03-31 01:20:56,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075954915] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:20:56,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760743967] [2023-03-31 01:20:56,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:20:56,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:20:56,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:20:56,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:20:56,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 01:20:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:56,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjunts are in the unsatisfiable core [2023-03-31 01:20:56,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:20:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:20:56,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:20:56,760 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:20:56,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760743967] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:20:56,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:20:56,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-03-31 01:20:56,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161041390] [2023-03-31 01:20:56,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:20:56,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 01:20:56,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:20:56,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 01:20:56,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-03-31 01:20:56,769 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 14 states, 11 states have (on average 3.090909090909091) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2023-03-31 01:20:57,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:20:57,005 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2023-03-31 01:20:57,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-31 01:20:57,005 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 3.090909090909091) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) Word has length 27 [2023-03-31 01:20:57,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:20:57,007 INFO L225 Difference]: With dead ends: 59 [2023-03-31 01:20:57,007 INFO L226 Difference]: Without dead ends: 35 [2023-03-31 01:20:57,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2023-03-31 01:20:57,008 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 56 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:20:57,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 32 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 01:20:57,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-03-31 01:20:57,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2023-03-31 01:20:57,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2023-03-31 01:20:57,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2023-03-31 01:20:57,017 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 27 [2023-03-31 01:20:57,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:20:57,017 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-03-31 01:20:57,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 3.090909090909091) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) [2023-03-31 01:20:57,018 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-03-31 01:20:57,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-03-31 01:20:57,019 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:20:57,019 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:20:57,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-03-31 01:20:57,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:20:57,227 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:20:57,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:20:57,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1560358132, now seen corresponding path program 1 times [2023-03-31 01:20:57,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:20:57,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179952099] [2023-03-31 01:20:57,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:20:57,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:20:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:57,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:20:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:57,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:20:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:57,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:20:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:57,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:20:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:57,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:20:57,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:20:57,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179952099] [2023-03-31 01:20:57,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179952099] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:20:57,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330950804] [2023-03-31 01:20:57,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:20:57,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:20:57,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:20:57,397 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:20:57,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 01:20:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:57,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2023-03-31 01:20:57,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:20:57,525 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:20:57,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:20:57,708 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:20:57,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330950804] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:20:57,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:20:57,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 14 [2023-03-31 01:20:57,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438648534] [2023-03-31 01:20:57,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:20:57,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 01:20:57,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:20:57,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 01:20:57,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-03-31 01:20:57,718 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 14 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-03-31 01:20:57,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:20:57,968 INFO L93 Difference]: Finished difference Result 55 states and 75 transitions. [2023-03-31 01:20:57,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 01:20:57,968 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Word has length 28 [2023-03-31 01:20:57,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:20:57,975 INFO L225 Difference]: With dead ends: 55 [2023-03-31 01:20:57,976 INFO L226 Difference]: Without dead ends: 51 [2023-03-31 01:20:57,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-03-31 01:20:57,982 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 66 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:20:57,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 42 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 01:20:57,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-03-31 01:20:57,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2023-03-31 01:20:57,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 states have internal predecessors, (39), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-03-31 01:20:58,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2023-03-31 01:20:58,008 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 28 [2023-03-31 01:20:58,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:20:58,008 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2023-03-31 01:20:58,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 13 states have internal predecessors, (34), 8 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-03-31 01:20:58,008 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2023-03-31 01:20:58,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-03-31 01:20:58,015 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:20:58,015 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:20:58,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 01:20:58,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-03-31 01:20:58,216 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:20:58,216 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:20:58,216 INFO L85 PathProgramCache]: Analyzing trace with hash 592941353, now seen corresponding path program 1 times [2023-03-31 01:20:58,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:20:58,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306703986] [2023-03-31 01:20:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:20:58,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:20:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:58,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:20:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:58,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:20:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:58,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:20:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:58,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:20:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:58,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:20:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:58,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:20:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 01:20:58,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:20:58,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306703986] [2023-03-31 01:20:58,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306703986] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:20:58,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447145623] [2023-03-31 01:20:58,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:20:58,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:20:58,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:20:58,348 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:20:58,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 01:20:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:58,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2023-03-31 01:20:58,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:20:58,475 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-31 01:20:58,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:20:58,757 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-31 01:20:58,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447145623] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:20:58,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:20:58,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 9] total 16 [2023-03-31 01:20:58,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42196394] [2023-03-31 01:20:58,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:20:58,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-03-31 01:20:58,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:20:58,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-03-31 01:20:58,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:20:58,762 INFO L87 Difference]: Start difference. First operand 49 states and 66 transitions. Second operand has 16 states, 13 states have (on average 3.769230769230769) internal successors, (49), 15 states have internal predecessors, (49), 11 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) [2023-03-31 01:20:59,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:20:59,168 INFO L93 Difference]: Finished difference Result 109 states and 171 transitions. [2023-03-31 01:20:59,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-31 01:20:59,173 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.769230769230769) internal successors, (49), 15 states have internal predecessors, (49), 11 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) Word has length 40 [2023-03-31 01:20:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:20:59,175 INFO L225 Difference]: With dead ends: 109 [2023-03-31 01:20:59,175 INFO L226 Difference]: Without dead ends: 67 [2023-03-31 01:20:59,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2023-03-31 01:20:59,177 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 69 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:20:59,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 62 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 01:20:59,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-03-31 01:20:59,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-03-31 01:20:59,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 45 states have internal predecessors, (52), 14 states have call successors, (14), 7 states have call predecessors, (14), 10 states have return successors, (30), 14 states have call predecessors, (30), 13 states have call successors, (30) [2023-03-31 01:20:59,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 96 transitions. [2023-03-31 01:20:59,191 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 96 transitions. Word has length 40 [2023-03-31 01:20:59,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:20:59,192 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 96 transitions. [2023-03-31 01:20:59,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.769230769230769) internal successors, (49), 15 states have internal predecessors, (49), 11 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (14), 4 states have call predecessors, (14), 11 states have call successors, (14) [2023-03-31 01:20:59,192 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 96 transitions. [2023-03-31 01:20:59,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-03-31 01:20:59,193 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:20:59,193 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:20:59,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 01:20:59,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:20:59,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:20:59,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:20:59,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1175572439, now seen corresponding path program 1 times [2023-03-31 01:20:59,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:20:59,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014854802] [2023-03-31 01:20:59,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:20:59,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:20:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:59,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:20:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:59,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:20:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:59,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:20:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:59,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:20:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:59,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:20:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:59,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:20:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:59,542 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-03-31 01:20:59,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:20:59,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014854802] [2023-03-31 01:20:59,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014854802] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:20:59,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39917305] [2023-03-31 01:20:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:20:59,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:20:59,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:20:59,544 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:20:59,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 01:20:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:20:59,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2023-03-31 01:20:59,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:20:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-31 01:20:59,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:21:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-31 01:21:00,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39917305] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:21:00,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:21:00,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 19 [2023-03-31 01:21:00,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547652281] [2023-03-31 01:21:00,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:21:00,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-03-31 01:21:00,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:21:00,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-03-31 01:21:00,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:21:00,033 INFO L87 Difference]: Start difference. First operand 67 states and 96 transitions. Second operand has 19 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (16), 2 states have call predecessors, (16), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) [2023-03-31 01:21:00,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:21:00,540 INFO L93 Difference]: Finished difference Result 181 states and 325 transitions. [2023-03-31 01:21:00,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-31 01:21:00,541 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (16), 2 states have call predecessors, (16), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) Word has length 41 [2023-03-31 01:21:00,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:21:00,543 INFO L225 Difference]: With dead ends: 181 [2023-03-31 01:21:00,543 INFO L226 Difference]: Without dead ends: 121 [2023-03-31 01:21:00,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=186, Invalid=870, Unknown=0, NotChecked=0, Total=1056 [2023-03-31 01:21:00,545 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 69 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:21:00,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 47 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 01:21:00,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-03-31 01:21:00,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 107. [2023-03-31 01:21:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 67 states have (on average 1.208955223880597) internal successors, (81), 70 states have internal predecessors, (81), 23 states have call successors, (23), 9 states have call predecessors, (23), 16 states have return successors, (66), 27 states have call predecessors, (66), 22 states have call successors, (66) [2023-03-31 01:21:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 170 transitions. [2023-03-31 01:21:00,567 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 170 transitions. Word has length 41 [2023-03-31 01:21:00,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:21:00,568 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 170 transitions. [2023-03-31 01:21:00,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (16), 2 states have call predecessors, (16), 7 states have return successors, (14), 7 states have call predecessors, (14), 11 states have call successors, (14) [2023-03-31 01:21:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 170 transitions. [2023-03-31 01:21:00,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-03-31 01:21:00,569 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:21:00,570 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:21:00,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-03-31 01:21:00,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:00,770 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:21:00,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:21:00,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1520964402, now seen corresponding path program 1 times [2023-03-31 01:21:00,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:21:00,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942498336] [2023-03-31 01:21:00,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:00,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:21:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:21:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:00,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:21:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:00,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:00,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:00,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:00,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:00,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-03-31 01:21:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:00,939 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-03-31 01:21:00,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:21:00,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942498336] [2023-03-31 01:21:00,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942498336] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:21:00,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140061524] [2023-03-31 01:21:00,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:00,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:00,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:21:00,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:21:00,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-03-31 01:21:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:01,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2023-03-31 01:21:01,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:21:01,124 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-03-31 01:21:01,125 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:21:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-03-31 01:21:01,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140061524] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:21:01,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:21:01,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 21 [2023-03-31 01:21:01,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648345982] [2023-03-31 01:21:01,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:21:01,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-03-31 01:21:01,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:21:01,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-03-31 01:21:01,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2023-03-31 01:21:01,628 INFO L87 Difference]: Start difference. First operand 107 states and 170 transitions. Second operand has 21 states, 19 states have (on average 3.263157894736842) internal successors, (62), 20 states have internal predecessors, (62), 14 states have call successors, (19), 2 states have call predecessors, (19), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) [2023-03-31 01:21:02,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:21:02,220 INFO L93 Difference]: Finished difference Result 259 states and 499 transitions. [2023-03-31 01:21:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:21:02,221 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 3.263157894736842) internal successors, (62), 20 states have internal predecessors, (62), 14 states have call successors, (19), 2 states have call predecessors, (19), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) Word has length 55 [2023-03-31 01:21:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:21:02,223 INFO L225 Difference]: With dead ends: 259 [2023-03-31 01:21:02,223 INFO L226 Difference]: Without dead ends: 159 [2023-03-31 01:21:02,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 121 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=240, Invalid=1166, Unknown=0, NotChecked=0, Total=1406 [2023-03-31 01:21:02,226 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 86 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:21:02,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 62 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 01:21:02,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-03-31 01:21:02,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 113. [2023-03-31 01:21:02,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 72 states have (on average 1.2222222222222223) internal successors, (88), 73 states have internal predecessors, (88), 26 states have call successors, (26), 11 states have call predecessors, (26), 14 states have return successors, (67), 28 states have call predecessors, (67), 25 states have call successors, (67) [2023-03-31 01:21:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 181 transitions. [2023-03-31 01:21:02,262 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 181 transitions. Word has length 55 [2023-03-31 01:21:02,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:21:02,262 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 181 transitions. [2023-03-31 01:21:02,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 3.263157894736842) internal successors, (62), 20 states have internal predecessors, (62), 14 states have call successors, (19), 2 states have call predecessors, (19), 8 states have return successors, (19), 8 states have call predecessors, (19), 14 states have call successors, (19) [2023-03-31 01:21:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 181 transitions. [2023-03-31 01:21:02,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-03-31 01:21:02,266 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:21:02,266 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:21:02,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-03-31 01:21:02,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:02,468 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:21:02,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:21:02,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1872737273, now seen corresponding path program 1 times [2023-03-31 01:21:02,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:21:02,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477369632] [2023-03-31 01:21:02,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:02,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:21:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:21:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:21:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:21:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,855 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 40 proven. 57 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-03-31 01:21:02,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:21:02,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477369632] [2023-03-31 01:21:02,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477369632] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:21:02,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750953450] [2023-03-31 01:21:02,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:02,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:02,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:21:02,857 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:21:02,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-03-31 01:21:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:02,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 12 conjunts are in the unsatisfiable core [2023-03-31 01:21:02,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:21:03,037 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 13 proven. 92 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-03-31 01:21:03,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:21:03,782 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 13 proven. 102 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-03-31 01:21:03,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750953450] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:21:03,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:21:03,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 13] total 25 [2023-03-31 01:21:03,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152343339] [2023-03-31 01:21:03,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:21:03,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-03-31 01:21:03,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:21:03,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-03-31 01:21:03,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2023-03-31 01:21:03,785 INFO L87 Difference]: Start difference. First operand 113 states and 181 transitions. Second operand has 25 states, 23 states have (on average 3.4347826086956523) internal successors, (79), 24 states have internal predecessors, (79), 18 states have call successors, (26), 2 states have call predecessors, (26), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) [2023-03-31 01:21:04,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:21:04,565 INFO L93 Difference]: Finished difference Result 244 states and 466 transitions. [2023-03-31 01:21:04,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-03-31 01:21:04,566 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 3.4347826086956523) internal successors, (79), 24 states have internal predecessors, (79), 18 states have call successors, (26), 2 states have call predecessors, (26), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) Word has length 97 [2023-03-31 01:21:04,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:21:04,567 INFO L225 Difference]: With dead ends: 244 [2023-03-31 01:21:04,567 INFO L226 Difference]: Without dead ends: 111 [2023-03-31 01:21:04,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 205 SyntacticMatches, 5 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=371, Invalid=1981, Unknown=0, NotChecked=0, Total=2352 [2023-03-31 01:21:04,570 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 119 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:21:04,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 77 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:21:04,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-03-31 01:21:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 88. [2023-03-31 01:21:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 59 states have internal predecessors, (68), 16 states have call successors, (16), 10 states have call predecessors, (16), 13 states have return successors, (36), 18 states have call predecessors, (36), 15 states have call successors, (36) [2023-03-31 01:21:04,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2023-03-31 01:21:04,582 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 97 [2023-03-31 01:21:04,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:21:04,583 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2023-03-31 01:21:04,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 3.4347826086956523) internal successors, (79), 24 states have internal predecessors, (79), 18 states have call successors, (26), 2 states have call predecessors, (26), 9 states have return successors, (28), 11 states have call predecessors, (28), 18 states have call successors, (28) [2023-03-31 01:21:04,583 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2023-03-31 01:21:04,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-03-31 01:21:04,585 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:21:04,585 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:21:04,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-03-31 01:21:04,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:04,793 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:21:04,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:21:04,794 INFO L85 PathProgramCache]: Analyzing trace with hash 293398094, now seen corresponding path program 2 times [2023-03-31 01:21:04,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:21:04,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688826718] [2023-03-31 01:21:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:04,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:21:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:04,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:21:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:04,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:21:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:04,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:21:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-03-31 01:21:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:05,227 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 66 proven. 113 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-03-31 01:21:05,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:21:05,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688826718] [2023-03-31 01:21:05,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688826718] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:21:05,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698177911] [2023-03-31 01:21:05,227 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-31 01:21:05,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:05,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:21:05,229 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:21:05,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-03-31 01:21:05,325 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-03-31 01:21:05,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 01:21:05,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 14 conjunts are in the unsatisfiable core [2023-03-31 01:21:05,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:21:05,477 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 29 proven. 182 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2023-03-31 01:21:05,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:21:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 29 proven. 198 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2023-03-31 01:21:06,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698177911] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:21:06,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:21:06,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 15] total 27 [2023-03-31 01:21:06,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272394742] [2023-03-31 01:21:06,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:21:06,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-03-31 01:21:06,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:21:06,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-03-31 01:21:06,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2023-03-31 01:21:06,641 INFO L87 Difference]: Start difference. First operand 88 states and 120 transitions. Second operand has 27 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 20 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) [2023-03-31 01:21:07,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:21:07,458 INFO L93 Difference]: Finished difference Result 218 states and 376 transitions. [2023-03-31 01:21:07,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-03-31 01:21:07,459 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 20 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) Word has length 138 [2023-03-31 01:21:07,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:21:07,461 INFO L225 Difference]: With dead ends: 218 [2023-03-31 01:21:07,461 INFO L226 Difference]: Without dead ends: 138 [2023-03-31 01:21:07,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 297 SyntacticMatches, 6 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=444, Invalid=2312, Unknown=0, NotChecked=0, Total=2756 [2023-03-31 01:21:07,463 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 128 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:21:07,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 62 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:21:07,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-03-31 01:21:07,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 118. [2023-03-31 01:21:07,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 22 states have call successors, (22), 13 states have call predecessors, (22), 17 states have return successors, (57), 25 states have call predecessors, (57), 21 states have call successors, (57) [2023-03-31 01:21:07,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 173 transitions. [2023-03-31 01:21:07,479 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 173 transitions. Word has length 138 [2023-03-31 01:21:07,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:21:07,480 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 173 transitions. [2023-03-31 01:21:07,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 20 states have call successors, (28), 2 states have call predecessors, (28), 10 states have return successors, (33), 12 states have call predecessors, (33), 20 states have call successors, (33) [2023-03-31 01:21:07,480 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 173 transitions. [2023-03-31 01:21:07,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-03-31 01:21:07,485 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:21:07,486 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 18, 17, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 7, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:21:07,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-03-31 01:21:07,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:07,693 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:21:07,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:21:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash -612152685, now seen corresponding path program 3 times [2023-03-31 01:21:07,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:21:07,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696031551] [2023-03-31 01:21:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:07,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:21:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:07,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:21:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:21:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-03-31 01:21:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:08,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-03-31 01:21:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-03-31 01:21:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:08,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2249 backedges. 177 proven. 382 refuted. 0 times theorem prover too weak. 1690 trivial. 0 not checked. [2023-03-31 01:21:08,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:21:08,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696031551] [2023-03-31 01:21:08,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696031551] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:21:08,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497306141] [2023-03-31 01:21:08,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-31 01:21:08,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:08,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:21:08,624 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:21:08,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-03-31 01:21:08,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-03-31 01:21:08,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 01:21:08,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2023-03-31 01:21:08,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:21:08,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2249 backedges. 291 proven. 4 refuted. 0 times theorem prover too weak. 1954 trivial. 0 not checked. [2023-03-31 01:21:08,789 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:21:09,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2249 backedges. 291 proven. 4 refuted. 0 times theorem prover too weak. 1954 trivial. 0 not checked. [2023-03-31 01:21:09,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497306141] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:21:09,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:21:09,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 20 [2023-03-31 01:21:09,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259233457] [2023-03-31 01:21:09,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:21:09,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-03-31 01:21:09,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:21:09,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-03-31 01:21:09,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2023-03-31 01:21:09,437 INFO L87 Difference]: Start difference. First operand 118 states and 173 transitions. Second operand has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 states have internal predecessors, (62), 7 states have call successors, (17), 2 states have call predecessors, (17), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2023-03-31 01:21:09,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:21:09,945 INFO L93 Difference]: Finished difference Result 227 states and 353 transitions. [2023-03-31 01:21:09,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:21:09,946 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 states have internal predecessors, (62), 7 states have call successors, (17), 2 states have call predecessors, (17), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) Word has length 289 [2023-03-31 01:21:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:21:09,949 INFO L225 Difference]: With dead ends: 227 [2023-03-31 01:21:09,949 INFO L226 Difference]: Without dead ends: 121 [2023-03-31 01:21:09,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 653 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=217, Invalid=1115, Unknown=0, NotChecked=0, Total=1332 [2023-03-31 01:21:09,951 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 88 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:21:09,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 57 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 01:21:09,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-03-31 01:21:09,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-03-31 01:21:09,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 83 states have (on average 1.1566265060240963) internal successors, (96), 80 states have internal predecessors, (96), 22 states have call successors, (22), 17 states have call predecessors, (22), 15 states have return successors, (46), 23 states have call predecessors, (46), 21 states have call successors, (46) [2023-03-31 01:21:09,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 164 transitions. [2023-03-31 01:21:09,969 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 164 transitions. Word has length 289 [2023-03-31 01:21:09,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:21:09,969 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 164 transitions. [2023-03-31 01:21:09,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 states have internal predecessors, (62), 7 states have call successors, (17), 2 states have call predecessors, (17), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2023-03-31 01:21:09,970 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 164 transitions. [2023-03-31 01:21:09,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-03-31 01:21:09,973 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:21:09,973 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 14, 14, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 6, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:21:09,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-03-31 01:21:10,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-03-31 01:21:10,179 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:21:10,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:21:10,179 INFO L85 PathProgramCache]: Analyzing trace with hash 902737004, now seen corresponding path program 4 times [2023-03-31 01:21:10,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:21:10,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981481823] [2023-03-31 01:21:10,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:10,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:21:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:21:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:21:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-03-31 01:21:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:11,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:11,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:11,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1594 backedges. 226 proven. 325 refuted. 0 times theorem prover too weak. 1043 trivial. 0 not checked. [2023-03-31 01:21:11,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:21:11,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981481823] [2023-03-31 01:21:11,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981481823] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:21:11,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767896849] [2023-03-31 01:21:11,010 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-03-31 01:21:11,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:11,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:21:11,011 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:21:11,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-03-31 01:21:11,122 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-03-31 01:21:11,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 01:21:11,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 18 conjunts are in the unsatisfiable core [2023-03-31 01:21:11,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:21:11,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1594 backedges. 939 proven. 176 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2023-03-31 01:21:11,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:21:12,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1594 backedges. 198 proven. 480 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2023-03-31 01:21:12,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767896849] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:21:12,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:21:12,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 19] total 32 [2023-03-31 01:21:12,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098328721] [2023-03-31 01:21:12,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:21:12,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-03-31 01:21:12,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:21:12,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-03-31 01:21:12,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2023-03-31 01:21:12,978 INFO L87 Difference]: Start difference. First operand 121 states and 164 transitions. Second operand has 32 states, 32 states have (on average 3.5625) internal successors, (114), 31 states have internal predecessors, (114), 25 states have call successors, (38), 3 states have call predecessors, (38), 11 states have return successors, (42), 15 states have call predecessors, (42), 25 states have call successors, (42) [2023-03-31 01:21:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:21:13,759 INFO L93 Difference]: Finished difference Result 248 states and 368 transitions. [2023-03-31 01:21:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-03-31 01:21:13,760 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.5625) internal successors, (114), 31 states have internal predecessors, (114), 25 states have call successors, (38), 3 states have call predecessors, (38), 11 states have return successors, (42), 15 states have call predecessors, (42), 25 states have call successors, (42) Word has length 246 [2023-03-31 01:21:13,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:21:13,763 INFO L225 Difference]: With dead ends: 248 [2023-03-31 01:21:13,763 INFO L226 Difference]: Without dead ends: 141 [2023-03-31 01:21:13,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 540 SyntacticMatches, 9 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2023-03-31 01:21:13,765 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 84 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:21:13,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 77 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 01:21:13,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-03-31 01:21:13,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2023-03-31 01:21:13,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 99 states have (on average 1.1111111111111112) internal successors, (110), 93 states have internal predecessors, (110), 25 states have call successors, (25), 23 states have call predecessors, (25), 15 states have return successors, (54), 23 states have call predecessors, (54), 24 states have call successors, (54) [2023-03-31 01:21:13,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 189 transitions. [2023-03-31 01:21:13,799 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 189 transitions. Word has length 246 [2023-03-31 01:21:13,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:21:13,800 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 189 transitions. [2023-03-31 01:21:13,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.5625) internal successors, (114), 31 states have internal predecessors, (114), 25 states have call successors, (38), 3 states have call predecessors, (38), 11 states have return successors, (42), 15 states have call predecessors, (42), 25 states have call successors, (42) [2023-03-31 01:21:13,800 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 189 transitions. [2023-03-31 01:21:13,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-03-31 01:21:13,804 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:21:13,804 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 19, 19, 17, 16, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 8, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:21:13,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-03-31 01:21:14,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:14,010 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:21:14,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:21:14,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1929190163, now seen corresponding path program 5 times [2023-03-31 01:21:14,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:21:14,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366373511] [2023-03-31 01:21:14,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:14,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:21:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:21:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:21:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-03-31 01:21:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:14,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:15,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:15,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:15,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2228 backedges. 440 proven. 337 refuted. 0 times theorem prover too weak. 1451 trivial. 0 not checked. [2023-03-31 01:21:15,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:21:15,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366373511] [2023-03-31 01:21:15,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366373511] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:21:15,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054312140] [2023-03-31 01:21:15,012 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-03-31 01:21:15,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:15,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:21:15,013 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:21:15,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-03-31 01:21:15,157 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2023-03-31 01:21:15,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 01:21:15,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 18 conjunts are in the unsatisfiable core [2023-03-31 01:21:15,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:21:15,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2228 backedges. 1139 proven. 234 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2023-03-31 01:21:15,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:21:17,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2228 backedges. 376 proven. 444 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2023-03-31 01:21:17,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054312140] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:21:17,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:21:17,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15, 19] total 39 [2023-03-31 01:21:17,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034483267] [2023-03-31 01:21:17,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:21:17,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-03-31 01:21:17,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:21:17,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-03-31 01:21:17,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1280, Unknown=0, NotChecked=0, Total=1482 [2023-03-31 01:21:17,125 INFO L87 Difference]: Start difference. First operand 140 states and 189 transitions. Second operand has 39 states, 39 states have (on average 3.2564102564102564) internal successors, (127), 38 states have internal predecessors, (127), 26 states have call successors, (43), 3 states have call predecessors, (43), 15 states have return successors, (50), 26 states have call predecessors, (50), 26 states have call successors, (50) [2023-03-31 01:21:18,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:21:18,638 INFO L93 Difference]: Finished difference Result 324 states and 504 transitions. [2023-03-31 01:21:18,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-03-31 01:21:18,639 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.2564102564102564) internal successors, (127), 38 states have internal predecessors, (127), 26 states have call successors, (43), 3 states have call predecessors, (43), 15 states have return successors, (50), 26 states have call predecessors, (50), 26 states have call successors, (50) Word has length 287 [2023-03-31 01:21:18,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:21:18,641 INFO L225 Difference]: With dead ends: 324 [2023-03-31 01:21:18,641 INFO L226 Difference]: Without dead ends: 194 [2023-03-31 01:21:18,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 719 GetRequests, 630 SyntacticMatches, 9 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2021 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=908, Invalid=5734, Unknown=0, NotChecked=0, Total=6642 [2023-03-31 01:21:18,644 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 149 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1850 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:21:18,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 107 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1850 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-03-31 01:21:18,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-03-31 01:21:18,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 158. [2023-03-31 01:21:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 111 states have (on average 1.1081081081081081) internal successors, (123), 106 states have internal predecessors, (123), 30 states have call successors, (30), 26 states have call predecessors, (30), 16 states have return successors, (64), 25 states have call predecessors, (64), 29 states have call successors, (64) [2023-03-31 01:21:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 217 transitions. [2023-03-31 01:21:18,657 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 217 transitions. Word has length 287 [2023-03-31 01:21:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:21:18,658 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 217 transitions. [2023-03-31 01:21:18,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.2564102564102564) internal successors, (127), 38 states have internal predecessors, (127), 26 states have call successors, (43), 3 states have call predecessors, (43), 15 states have return successors, (50), 26 states have call predecessors, (50), 26 states have call successors, (50) [2023-03-31 01:21:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 217 transitions. [2023-03-31 01:21:18,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-03-31 01:21:18,661 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:21:18,661 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 16, 15, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 6, 6, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:21:18,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-03-31 01:21:18,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-03-31 01:21:18,869 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:21:18,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:21:18,870 INFO L85 PathProgramCache]: Analyzing trace with hash 2108442644, now seen corresponding path program 6 times [2023-03-31 01:21:18,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:21:18,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206264368] [2023-03-31 01:21:18,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:18,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:21:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:21:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:21:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-03-31 01:21:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:19,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1993 backedges. 481 proven. 301 refuted. 0 times theorem prover too weak. 1211 trivial. 0 not checked. [2023-03-31 01:21:19,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:21:19,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206264368] [2023-03-31 01:21:19,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206264368] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:21:19,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694152890] [2023-03-31 01:21:19,898 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-03-31 01:21:19,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:19,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:21:19,899 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:21:19,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-03-31 01:21:20,056 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2023-03-31 01:21:20,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 01:21:20,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 12 conjunts are in the unsatisfiable core [2023-03-31 01:21:20,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:21:20,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1993 backedges. 480 proven. 30 refuted. 0 times theorem prover too weak. 1483 trivial. 0 not checked. [2023-03-31 01:21:20,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:21:21,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1993 backedges. 480 proven. 32 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2023-03-31 01:21:21,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694152890] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:21:21,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:21:21,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 12, 13] total 33 [2023-03-31 01:21:21,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424780152] [2023-03-31 01:21:21,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:21:21,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-03-31 01:21:21,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:21:21,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-03-31 01:21:21,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=898, Unknown=0, NotChecked=0, Total=1056 [2023-03-31 01:21:21,121 INFO L87 Difference]: Start difference. First operand 158 states and 217 transitions. Second operand has 33 states, 33 states have (on average 2.878787878787879) internal successors, (95), 32 states have internal predecessors, (95), 17 states have call successors, (32), 2 states have call predecessors, (32), 12 states have return successors, (36), 22 states have call predecessors, (36), 17 states have call successors, (36) [2023-03-31 01:21:21,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:21:21,905 INFO L93 Difference]: Finished difference Result 319 states and 469 transitions. [2023-03-31 01:21:21,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-03-31 01:21:21,906 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.878787878787879) internal successors, (95), 32 states have internal predecessors, (95), 17 states have call successors, (32), 2 states have call predecessors, (32), 12 states have return successors, (36), 22 states have call predecessors, (36), 17 states have call successors, (36) Word has length 273 [2023-03-31 01:21:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:21:21,908 INFO L225 Difference]: With dead ends: 319 [2023-03-31 01:21:21,908 INFO L226 Difference]: Without dead ends: 175 [2023-03-31 01:21:21,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 609 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 873 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=470, Invalid=2610, Unknown=0, NotChecked=0, Total=3080 [2023-03-31 01:21:21,911 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 93 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:21:21,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 67 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:21:21,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-03-31 01:21:21,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 165. [2023-03-31 01:21:21,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 116 states have (on average 1.0862068965517242) internal successors, (126), 111 states have internal predecessors, (126), 32 states have call successors, (32), 27 states have call predecessors, (32), 16 states have return successors, (67), 26 states have call predecessors, (67), 31 states have call successors, (67) [2023-03-31 01:21:21,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 225 transitions. [2023-03-31 01:21:21,924 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 225 transitions. Word has length 273 [2023-03-31 01:21:21,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:21:21,925 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 225 transitions. [2023-03-31 01:21:21,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.878787878787879) internal successors, (95), 32 states have internal predecessors, (95), 17 states have call successors, (32), 2 states have call predecessors, (32), 12 states have return successors, (36), 22 states have call predecessors, (36), 17 states have call successors, (36) [2023-03-31 01:21:21,925 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 225 transitions. [2023-03-31 01:21:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-03-31 01:21:21,929 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:21:21,930 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 25, 25, 21, 20, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 8, 8, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:21:21,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-03-31 01:21:22,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-03-31 01:21:22,137 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:21:22,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:21:22,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2137802324, now seen corresponding path program 7 times [2023-03-31 01:21:22,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:21:22,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466549414] [2023-03-31 01:21:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:22,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:21:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:22,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:21:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:22,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:21:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:22,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:22,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:22,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:22,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-03-31 01:21:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3476 backedges. 412 proven. 799 refuted. 0 times theorem prover too weak. 2265 trivial. 0 not checked. [2023-03-31 01:21:23,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:21:23,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466549414] [2023-03-31 01:21:23,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466549414] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:21:23,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028632931] [2023-03-31 01:21:23,423 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-03-31 01:21:23,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:23,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:21:23,425 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:21:23,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-03-31 01:21:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:23,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 16 conjunts are in the unsatisfiable core [2023-03-31 01:21:23,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:21:23,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3476 backedges. 105 proven. 737 refuted. 0 times theorem prover too weak. 2634 trivial. 0 not checked. [2023-03-31 01:21:23,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:21:25,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3476 backedges. 105 proven. 761 refuted. 0 times theorem prover too weak. 2610 trivial. 0 not checked. [2023-03-31 01:21:25,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028632931] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:21:25,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:21:25,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 12, 17] total 37 [2023-03-31 01:21:25,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746601802] [2023-03-31 01:21:25,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:21:25,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-03-31 01:21:25,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:21:25,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-03-31 01:21:25,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1142, Unknown=0, NotChecked=0, Total=1332 [2023-03-31 01:21:25,676 INFO L87 Difference]: Start difference. First operand 165 states and 225 transitions. Second operand has 37 states, 35 states have (on average 2.857142857142857) internal successors, (100), 36 states have internal predecessors, (100), 28 states have call successors, (36), 2 states have call predecessors, (36), 13 states have return successors, (46), 22 states have call predecessors, (46), 28 states have call successors, (46) [2023-03-31 01:21:26,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:21:26,730 INFO L93 Difference]: Finished difference Result 386 states and 579 transitions. [2023-03-31 01:21:26,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-03-31 01:21:26,731 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 2.857142857142857) internal successors, (100), 36 states have internal predecessors, (100), 28 states have call successors, (36), 2 states have call predecessors, (36), 13 states have return successors, (46), 22 states have call predecessors, (46), 28 states have call successors, (46) Word has length 355 [2023-03-31 01:21:26,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:21:26,734 INFO L225 Difference]: With dead ends: 386 [2023-03-31 01:21:26,734 INFO L226 Difference]: Without dead ends: 216 [2023-03-31 01:21:26,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 795 SyntacticMatches, 7 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1581 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=710, Invalid=4402, Unknown=0, NotChecked=0, Total=5112 [2023-03-31 01:21:26,736 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 173 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:21:26,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 112 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 01:21:26,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-03-31 01:21:26,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 187. [2023-03-31 01:21:26,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 131 states have (on average 1.0763358778625953) internal successors, (141), 126 states have internal predecessors, (141), 37 states have call successors, (37), 30 states have call predecessors, (37), 18 states have return successors, (82), 30 states have call predecessors, (82), 36 states have call successors, (82) [2023-03-31 01:21:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 260 transitions. [2023-03-31 01:21:26,751 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 260 transitions. Word has length 355 [2023-03-31 01:21:26,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:21:26,751 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 260 transitions. [2023-03-31 01:21:26,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 2.857142857142857) internal successors, (100), 36 states have internal predecessors, (100), 28 states have call successors, (36), 2 states have call predecessors, (36), 13 states have return successors, (46), 22 states have call predecessors, (46), 28 states have call successors, (46) [2023-03-31 01:21:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 260 transitions. [2023-03-31 01:21:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2023-03-31 01:21:26,755 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:21:26,756 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 40, 40, 34, 33, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 14, 12, 9, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:21:26,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-03-31 01:21:26,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-03-31 01:21:26,962 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:21:26,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:21:26,963 INFO L85 PathProgramCache]: Analyzing trace with hash -340741160, now seen corresponding path program 8 times [2023-03-31 01:21:26,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:21:26,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980291422] [2023-03-31 01:21:26,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:26,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:21:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:27,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:21:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:27,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:21:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:27,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:27,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-03-31 01:21:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-03-31 01:21:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-03-31 01:21:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:28,536 INFO L134 CoverageAnalysis]: Checked inductivity of 9421 backedges. 341 proven. 1283 refuted. 0 times theorem prover too weak. 7797 trivial. 0 not checked. [2023-03-31 01:21:28,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:21:28,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980291422] [2023-03-31 01:21:28,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980291422] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:21:28,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701798569] [2023-03-31 01:21:28,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-31 01:21:28,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:28,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:21:28,541 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:21:28,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-03-31 01:21:28,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-03-31 01:21:28,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 01:21:28,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 1301 conjuncts, 18 conjunts are in the unsatisfiable core [2023-03-31 01:21:28,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:21:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 9421 backedges. 175 proven. 1484 refuted. 0 times theorem prover too weak. 7762 trivial. 0 not checked. [2023-03-31 01:21:29,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:21:31,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9421 backedges. 175 proven. 1517 refuted. 0 times theorem prover too weak. 7729 trivial. 0 not checked. [2023-03-31 01:21:31,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701798569] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:21:31,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:21:31,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 19] total 34 [2023-03-31 01:21:31,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053218744] [2023-03-31 01:21:31,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:21:31,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-03-31 01:21:31,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:21:31,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-03-31 01:21:31,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=960, Unknown=0, NotChecked=0, Total=1122 [2023-03-31 01:21:31,703 INFO L87 Difference]: Start difference. First operand 187 states and 260 transitions. Second operand has 34 states, 32 states have (on average 3.25) internal successors, (104), 33 states have internal predecessors, (104), 27 states have call successors, (36), 2 states have call predecessors, (36), 13 states have return successors, (45), 18 states have call predecessors, (45), 27 states have call successors, (45) [2023-03-31 01:21:32,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:21:32,740 INFO L93 Difference]: Finished difference Result 402 states and 633 transitions. [2023-03-31 01:21:32,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-03-31 01:21:32,741 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 3.25) internal successors, (104), 33 states have internal predecessors, (104), 27 states have call successors, (36), 2 states have call predecessors, (36), 13 states have return successors, (45), 18 states have call predecessors, (45), 27 states have call successors, (45) Word has length 573 [2023-03-31 01:21:32,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:21:32,748 INFO L225 Difference]: With dead ends: 402 [2023-03-31 01:21:32,748 INFO L226 Difference]: Without dead ends: 229 [2023-03-31 01:21:32,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1367 GetRequests, 1291 SyntacticMatches, 8 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1250 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=700, Invalid=4130, Unknown=0, NotChecked=0, Total=4830 [2023-03-31 01:21:32,755 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 149 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:21:32,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 87 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 01:21:32,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-03-31 01:21:32,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 209. [2023-03-31 01:21:32,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 148 states have (on average 1.0675675675675675) internal successors, (158), 141 states have internal predecessors, (158), 41 states have call successors, (41), 35 states have call predecessors, (41), 19 states have return successors, (95), 32 states have call predecessors, (95), 40 states have call successors, (95) [2023-03-31 01:21:32,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 294 transitions. [2023-03-31 01:21:32,774 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 294 transitions. Word has length 573 [2023-03-31 01:21:32,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:21:32,775 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 294 transitions. [2023-03-31 01:21:32,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 3.25) internal successors, (104), 33 states have internal predecessors, (104), 27 states have call successors, (36), 2 states have call predecessors, (36), 13 states have return successors, (45), 18 states have call predecessors, (45), 27 states have call successors, (45) [2023-03-31 01:21:32,775 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 294 transitions. [2023-03-31 01:21:32,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1105 [2023-03-31 01:21:32,809 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:21:32,810 INFO L195 NwaCegarLoop]: trace histogram [83, 83, 78, 78, 66, 64, 41, 41, 41, 41, 41, 41, 41, 39, 39, 39, 39, 39, 39, 39, 27, 23, 17, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:21:32,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-03-31 01:21:33,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-03-31 01:21:33,014 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:21:33,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:21:33,015 INFO L85 PathProgramCache]: Analyzing trace with hash -663511455, now seen corresponding path program 9 times [2023-03-31 01:21:33,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:21:33,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809685328] [2023-03-31 01:21:33,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:21:33,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:21:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:34,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:21:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:21:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:35,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:35,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-03-31 01:21:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-03-31 01:21:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-03-31 01:21:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:36,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-03-31 01:21:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-03-31 01:21:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-03-31 01:21:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-03-31 01:21:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:21:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 01:21:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 01:21:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:21:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 01:21:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:21:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:21:37,814 INFO L134 CoverageAnalysis]: Checked inductivity of 36029 backedges. 2114 proven. 4358 refuted. 0 times theorem prover too weak. 29557 trivial. 0 not checked. [2023-03-31 01:21:37,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:21:37,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809685328] [2023-03-31 01:21:37,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809685328] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:21:37,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625527784] [2023-03-31 01:21:37,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-31 01:21:37,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:21:37,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:21:37,850 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:21:37,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-03-31 01:21:38,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2023-03-31 01:21:38,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-31 01:21:38,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 20 conjunts are in the unsatisfiable core [2023-03-31 01:21:38,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:21:38,371 INFO L134 CoverageAnalysis]: Checked inductivity of 36029 backedges. 396 proven. 3427 refuted. 0 times theorem prover too weak. 32206 trivial. 0 not checked. [2023-03-31 01:21:38,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:21:42,545 INFO L134 CoverageAnalysis]: Checked inductivity of 36029 backedges. 396 proven. 3471 refuted. 0 times theorem prover too weak. 32162 trivial. 0 not checked. [2023-03-31 01:21:42,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625527784] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:21:42,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:21:42,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 14, 21] total 49 [2023-03-31 01:21:42,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730910514] [2023-03-31 01:21:42,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:21:42,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-03-31 01:21:42,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:21:42,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-03-31 01:21:42,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=2042, Unknown=0, NotChecked=0, Total=2352 [2023-03-31 01:21:42,550 INFO L87 Difference]: Start difference. First operand 209 states and 294 transitions. Second operand has 49 states, 47 states have (on average 2.617021276595745) internal successors, (123), 48 states have internal predecessors, (123), 37 states have call successors, (45), 2 states have call predecessors, (45), 18 states have return successors, (62), 32 states have call predecessors, (62), 37 states have call successors, (62)