/usr/lib/jvm/java-1.11.0-openjdk-amd64/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 --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-97.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 16:26:41,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 16:26:41,891 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 16:26:41,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 16:26:41,899 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 16:26:41,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 16:26:41,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 16:26:41,927 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 16:26:41,927 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 16:26:41,931 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 16:26:41,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 16:26:41,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 16:26:41,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 16:26:41,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 16:26:41,933 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 16:26:41,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 16:26:41,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 16:26:41,934 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 16:26:41,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 16:26:41,935 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 16:26:41,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 16:26:41,936 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 16:26:41,936 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 16:26:41,936 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 16:26:41,936 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 16:26:41,936 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 16:26:41,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 16:26:41,936 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 16:26:41,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 16:26:41,937 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 16:26:41,938 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 16:26:41,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 16:26:41,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 16:26:41,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 16:26:41,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 16:26:41,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 16:26:41,938 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 16:26:41,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 16:26:41,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 16:26:41,939 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 16:26:41,939 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 16:26:41,939 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 16:26:41,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 16:26:41,939 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 16:26:42,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 16:26:42,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 16:26:42,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 16:26:42,125 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 16:26:42,125 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 16:26:42,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-97.i [2023-12-19 16:26:43,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 16:26:43,319 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 16:26:43,320 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-97.i [2023-12-19 16:26:43,328 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff88b3b60/73995335954440de935be97ab065fc82/FLAG57a3daf58 [2023-12-19 16:26:43,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff88b3b60/73995335954440de935be97ab065fc82 [2023-12-19 16:26:43,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 16:26:43,345 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 16:26:43,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 16:26:43,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 16:26:43,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 16:26:43,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4412b637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43, skipping insertion in model container [2023-12-19 16:26:43,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,378 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 16:26:43,494 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-97.i[917,930] [2023-12-19 16:26:43,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 16:26:43,566 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 16:26:43,576 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-97.i[917,930] [2023-12-19 16:26:43,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 16:26:43,626 INFO L206 MainTranslator]: Completed translation [2023-12-19 16:26:43,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43 WrapperNode [2023-12-19 16:26:43,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 16:26:43,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 16:26:43,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 16:26:43,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 16:26:43,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,685 INFO L138 Inliner]: procedures = 29, calls = 145, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 449 [2023-12-19 16:26:43,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 16:26:43,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 16:26:43,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 16:26:43,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 16:26:43,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,697 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,731 INFO L175 MemorySlicer]: Split 116 memory accesses to 2 slices as follows [2, 114]. 98 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 15]. The 19 writes are split as follows [0, 19]. [2023-12-19 16:26:43,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 16:26:43,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 16:26:43,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 16:26:43,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 16:26:43,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (1/1) ... [2023-12-19 16:26:43,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 16:26:43,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:26:43,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 16:26:43,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 16:26:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 16:26:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-19 16:26:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-19 16:26:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 16:26:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 16:26:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-19 16:26:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-19 16:26:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 16:26:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 16:26:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-19 16:26:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-19 16:26:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 16:26:43,859 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 16:26:43,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 16:26:43,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 16:26:43,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 16:26:43,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 16:26:43,971 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 16:26:43,972 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 16:26:44,394 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 16:26:44,426 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 16:26:44,427 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 16:26:44,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:26:44 BoogieIcfgContainer [2023-12-19 16:26:44,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 16:26:44,429 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 16:26:44,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 16:26:44,431 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 16:26:44,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:26:43" (1/3) ... [2023-12-19 16:26:44,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79da0eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:26:44, skipping insertion in model container [2023-12-19 16:26:44,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:26:43" (2/3) ... [2023-12-19 16:26:44,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79da0eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:26:44, skipping insertion in model container [2023-12-19 16:26:44,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:26:44" (3/3) ... [2023-12-19 16:26:44,434 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-97.i [2023-12-19 16:26:44,448 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 16:26:44,449 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 16:26:44,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 16:26:44,497 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=LoopHeads, 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;@33a223d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 16:26:44,497 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 16:26:44,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 80 states have internal predecessors, (114), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-19 16:26:44,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 16:26:44,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:26:44,511 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:26:44,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:26:44,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:26:44,514 INFO L85 PathProgramCache]: Analyzing trace with hash -273642578, now seen corresponding path program 1 times [2023-12-19 16:26:44,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:26:44,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975294443] [2023-12-19 16:26:44,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:26:44,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:26:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:26:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:26:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:26:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:26:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:26:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:26:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:26:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:26:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:26:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:26:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:26:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:26:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:26:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:26:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:26:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:26:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 16:26:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:44,849 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-19 16:26:44,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:26:44,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975294443] [2023-12-19 16:26:44,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975294443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:26:44,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:26:44,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 16:26:44,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474215486] [2023-12-19 16:26:44,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:26:44,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 16:26:44,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:26:44,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 16:26:44,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 16:26:44,884 INFO L87 Difference]: Start difference. First operand has 99 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 80 states have internal predecessors, (114), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-19 16:26:44,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:26:44,930 INFO L93 Difference]: Finished difference Result 195 states and 311 transitions. [2023-12-19 16:26:44,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 16:26:44,932 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 129 [2023-12-19 16:26:44,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:26:44,940 INFO L225 Difference]: With dead ends: 195 [2023-12-19 16:26:44,940 INFO L226 Difference]: Without dead ends: 97 [2023-12-19 16:26:44,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 16:26:44,947 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:26:44,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:26:44,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-19 16:26:44,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-12-19 16:26:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-19 16:26:44,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 143 transitions. [2023-12-19 16:26:44,988 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 143 transitions. Word has length 129 [2023-12-19 16:26:44,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:26:44,988 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 143 transitions. [2023-12-19 16:26:44,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-19 16:26:44,989 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 143 transitions. [2023-12-19 16:26:44,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 16:26:44,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:26:44,993 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:26:44,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 16:26:44,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:26:44,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:26:44,994 INFO L85 PathProgramCache]: Analyzing trace with hash -117066228, now seen corresponding path program 1 times [2023-12-19 16:26:44,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:26:44,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531795610] [2023-12-19 16:26:44,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:26:44,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:26:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:26:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:26:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:26:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:26:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:26:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:26:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:26:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:26:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:26:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:26:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:26:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:26:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:26:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:26:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:26:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:26:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 16:26:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,380 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-19 16:26:45,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:26:45,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531795610] [2023-12-19 16:26:45,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531795610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:26:45,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:26:45,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 16:26:45,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210655102] [2023-12-19 16:26:45,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:26:45,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 16:26:45,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:26:45,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 16:26:45,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:26:45,386 INFO L87 Difference]: Start difference. First operand 97 states and 143 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 16:26:45,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:26:45,448 INFO L93 Difference]: Finished difference Result 219 states and 324 transitions. [2023-12-19 16:26:45,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 16:26:45,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2023-12-19 16:26:45,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:26:45,452 INFO L225 Difference]: With dead ends: 219 [2023-12-19 16:26:45,452 INFO L226 Difference]: Without dead ends: 123 [2023-12-19 16:26:45,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:26:45,453 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 64 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:26:45,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 433 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:26:45,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-12-19 16:26:45,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 99. [2023-12-19 16:26:45,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 80 states have (on average 1.3875) internal successors, (111), 80 states have internal predecessors, (111), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-19 16:26:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 145 transitions. [2023-12-19 16:26:45,468 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 145 transitions. Word has length 129 [2023-12-19 16:26:45,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:26:45,470 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 145 transitions. [2023-12-19 16:26:45,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 16:26:45,470 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 145 transitions. [2023-12-19 16:26:45,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-19 16:26:45,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:26:45,472 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:26:45,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 16:26:45,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:26:45,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:26:45,473 INFO L85 PathProgramCache]: Analyzing trace with hash -147168102, now seen corresponding path program 1 times [2023-12-19 16:26:45,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:26:45,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535592409] [2023-12-19 16:26:45,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:26:45,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:26:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:26:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:26:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:26:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:26:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:26:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:26:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:26:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:26:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:26:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:26:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:26:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:26:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:26:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:26:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:26:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:26:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 16:26:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,681 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-19 16:26:45,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:26:45,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535592409] [2023-12-19 16:26:45,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535592409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:26:45,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:26:45,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 16:26:45,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156668564] [2023-12-19 16:26:45,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:26:45,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 16:26:45,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:26:45,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 16:26:45,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:26:45,684 INFO L87 Difference]: Start difference. First operand 99 states and 145 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 16:26:45,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:26:45,726 INFO L93 Difference]: Finished difference Result 209 states and 306 transitions. [2023-12-19 16:26:45,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 16:26:45,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-12-19 16:26:45,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:26:45,729 INFO L225 Difference]: With dead ends: 209 [2023-12-19 16:26:45,729 INFO L226 Difference]: Without dead ends: 111 [2023-12-19 16:26:45,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:26:45,735 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 21 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:26:45,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 408 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:26:45,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-12-19 16:26:45,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 101. [2023-12-19 16:26:45,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 82 states have (on average 1.3780487804878048) internal successors, (113), 82 states have internal predecessors, (113), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-19 16:26:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2023-12-19 16:26:45,749 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 131 [2023-12-19 16:26:45,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:26:45,750 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2023-12-19 16:26:45,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 16:26:45,750 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2023-12-19 16:26:45,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-19 16:26:45,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:26:45,751 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:26:45,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 16:26:45,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:26:45,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:26:45,751 INFO L85 PathProgramCache]: Analyzing trace with hash -956514728, now seen corresponding path program 1 times [2023-12-19 16:26:45,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:26:45,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160300938] [2023-12-19 16:26:45,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:26:45,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:26:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:26:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:26:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:26:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:26:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:26:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:26:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:26:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:26:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:26:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:26:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:26:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:26:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:26:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:26:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:26:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:26:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 16:26:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:45,881 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-19 16:26:45,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:26:45,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160300938] [2023-12-19 16:26:45,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160300938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:26:45,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:26:45,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 16:26:45,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547682613] [2023-12-19 16:26:45,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:26:45,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 16:26:45,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:26:45,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 16:26:45,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:26:45,883 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 16:26:45,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:26:45,913 INFO L93 Difference]: Finished difference Result 209 states and 304 transitions. [2023-12-19 16:26:45,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 16:26:45,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-12-19 16:26:45,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:26:45,915 INFO L225 Difference]: With dead ends: 209 [2023-12-19 16:26:45,915 INFO L226 Difference]: Without dead ends: 109 [2023-12-19 16:26:45,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:26:45,920 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 12 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:26:45,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 406 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:26:45,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-19 16:26:45,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 103. [2023-12-19 16:26:45,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 84 states have (on average 1.369047619047619) internal successors, (115), 84 states have internal predecessors, (115), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-19 16:26:45,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2023-12-19 16:26:45,933 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 131 [2023-12-19 16:26:45,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:26:45,934 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2023-12-19 16:26:45,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 16:26:45,934 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2023-12-19 16:26:45,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-19 16:26:45,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:26:45,935 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:26:45,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 16:26:45,935 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:26:45,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:26:45,935 INFO L85 PathProgramCache]: Analyzing trace with hash -899256426, now seen corresponding path program 1 times [2023-12-19 16:26:45,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:26:45,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73990283] [2023-12-19 16:26:45,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:26:45,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:26:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:26:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:26:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:26:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:26:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:26:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:26:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:26:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:26:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:26:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:26:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:26:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:26:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:26:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:26:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:26:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:26:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 16:26:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:46,583 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-19 16:26:46,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:26:46,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73990283] [2023-12-19 16:26:46,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73990283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:26:46,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:26:46,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 16:26:46,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442072156] [2023-12-19 16:26:46,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:26:46,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 16:26:46,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:26:46,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 16:26:46,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-19 16:26:46,585 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 16:26:46,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:26:46,925 INFO L93 Difference]: Finished difference Result 243 states and 348 transitions. [2023-12-19 16:26:46,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 16:26:46,925 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2023-12-19 16:26:46,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:26:46,926 INFO L225 Difference]: With dead ends: 243 [2023-12-19 16:26:46,926 INFO L226 Difference]: Without dead ends: 141 [2023-12-19 16:26:46,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-19 16:26:46,927 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 283 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 16:26:46,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 422 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 16:26:46,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-19 16:26:46,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 105. [2023-12-19 16:26:46,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 86 states have internal predecessors, (117), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-19 16:26:46,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 151 transitions. [2023-12-19 16:26:46,932 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 151 transitions. Word has length 131 [2023-12-19 16:26:46,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:26:46,932 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 151 transitions. [2023-12-19 16:26:46,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-19 16:26:46,932 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 151 transitions. [2023-12-19 16:26:46,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-19 16:26:46,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:26:46,933 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:26:46,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 16:26:46,933 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:26:46,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:26:46,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1285018963, now seen corresponding path program 1 times [2023-12-19 16:26:46,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:26:46,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025850920] [2023-12-19 16:26:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:26:46,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:26:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:26:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:26:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:26:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:26:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:26:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:26:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:26:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:26:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:26:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:26:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:26:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:26:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:26:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:26:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:26:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:26:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 16:26:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-19 16:26:48,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:26:48,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025850920] [2023-12-19 16:26:48,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025850920] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 16:26:48,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393101978] [2023-12-19 16:26:48,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:26:48,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:26:48,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:26:48,406 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) [2023-12-19 16:26:48,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 16:26:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:26:48,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-19 16:26:48,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 16:26:50,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-19 16:26:51,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-19 16:26:51,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-19 16:26:52,146 INFO L349 Elim1Store]: treesize reduction 86, result has 28.9 percent of original size [2023-12-19 16:26:52,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 61 treesize of output 99 [2023-12-19 16:26:52,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 20 [2023-12-19 16:26:52,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:52,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:52,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:52,526 INFO L349 Elim1Store]: treesize reduction 384, result has 19.5 percent of original size [2023-12-19 16:26:52,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 162 treesize of output 359 [2023-12-19 16:26:54,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:54,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:54,486 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:26:54,491 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:26:54,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 227 [2023-12-19 16:26:54,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:54,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:54,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:54,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:54,701 INFO L349 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2023-12-19 16:26:54,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1681 treesize of output 1638 [2023-12-19 16:26:56,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:56,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:56,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:56,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:56,266 INFO L349 Elim1Store]: treesize reduction 103, result has 18.3 percent of original size [2023-12-19 16:26:56,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 744 treesize of output 788 [2023-12-19 16:26:56,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:26:56,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:26:56,845 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-19 16:26:56,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:26:57,246 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-19 16:26:57,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:26:57,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:26:57,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:26:57,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:57,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:57,862 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:26:57,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 26 [2023-12-19 16:26:58,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:58,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:58,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:58,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:58,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:58,222 INFO L349 Elim1Store]: treesize reduction 112, result has 27.7 percent of original size [2023-12-19 16:26:58,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 9 new quantified variables, introduced 14 case distinctions, treesize of input 487 treesize of output 903 [2023-12-19 16:26:58,485 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-19 16:26:58,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:26:58,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:26:58,631 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-19 16:26:58,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:26:58,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:26:59,383 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-19 16:26:59,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 114 [2023-12-19 16:26:59,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:59,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:59,464 INFO L349 Elim1Store]: treesize reduction 59, result has 13.2 percent of original size [2023-12-19 16:26:59,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 307 treesize of output 366 [2023-12-19 16:26:59,518 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-19 16:26:59,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 102 [2023-12-19 16:26:59,538 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-19 16:26:59,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 102 [2023-12-19 16:26:59,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:59,754 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:26:59,758 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:26:59,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 150 [2023-12-19 16:26:59,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:59,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:59,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:59,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 144 [2023-12-19 16:26:59,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:59,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:59,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:26:59,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 253 [2023-12-19 16:26:59,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:27:00,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2023-12-19 16:27:00,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:00,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:00,135 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:27:00,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 26 [2023-12-19 16:27:01,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:01,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:01,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:01,100 INFO L349 Elim1Store]: treesize reduction 279, result has 17.9 percent of original size [2023-12-19 16:27:01,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 140 treesize of output 235 [2023-12-19 16:27:02,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:02,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:02,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:02,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:02,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:02,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:02,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:02,560 INFO L349 Elim1Store]: treesize reduction 48, result has 14.3 percent of original size [2023-12-19 16:27:02,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1001 treesize of output 978 [2023-12-19 16:27:03,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:03,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:03,400 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-12-19 16:27:03,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 128 [2023-12-19 16:27:04,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:04,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:04,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:04,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:04,229 INFO L349 Elim1Store]: treesize reduction 148, result has 26.7 percent of original size [2023-12-19 16:27:04,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 130 treesize of output 178 [2023-12-19 16:27:04,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:04,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:04,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:04,441 INFO L349 Elim1Store]: treesize reduction 433, result has 13.7 percent of original size [2023-12-19 16:27:04,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 130 treesize of output 239 [2023-12-19 16:27:06,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,023 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-19 16:27:06,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 88 [2023-12-19 16:27:06,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,079 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-12-19 16:27:06,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 147 treesize of output 106 [2023-12-19 16:27:06,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,159 INFO L349 Elim1Store]: treesize reduction 105, result has 19.8 percent of original size [2023-12-19 16:27:06,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 1047 treesize of output 1005 [2023-12-19 16:27:06,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,563 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:27:06,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,568 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:27:06,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 81 [2023-12-19 16:27:06,598 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:27:06,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:27:06,604 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-19 16:27:06,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 61 [2023-12-19 16:27:10,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 31 [2023-12-19 16:27:10,486 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-12-19 16:27:10,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 16:27:10,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-19 16:27:10,693 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:331) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:186) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-19 16:27:10,703 INFO L158 Benchmark]: Toolchain (without parser) took 27358.03ms. Allocated memory was 225.4MB in the beginning and 663.7MB in the end (delta: 438.3MB). Free memory was 174.4MB in the beginning and 552.9MB in the end (delta: -378.5MB). Peak memory consumption was 393.5MB. Max. memory is 8.0GB. [2023-12-19 16:27:10,703 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 181.4MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 16:27:10,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.39ms. Allocated memory is still 225.4MB. Free memory was 174.1MB in the beginning and 158.8MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 16:27:10,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.50ms. Allocated memory is still 225.4MB. Free memory was 158.8MB in the beginning and 155.3MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 16:27:10,703 INFO L158 Benchmark]: Boogie Preprocessor took 72.51ms. Allocated memory is still 225.4MB. Free memory was 155.3MB in the beginning and 151.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 16:27:10,703 INFO L158 Benchmark]: RCFGBuilder took 668.74ms. Allocated memory is still 225.4MB. Free memory was 151.1MB in the beginning and 170.2MB in the end (delta: -19.2MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB. [2023-12-19 16:27:10,704 INFO L158 Benchmark]: TraceAbstraction took 26273.62ms. Allocated memory was 225.4MB in the beginning and 663.7MB in the end (delta: 438.3MB). Free memory was 169.7MB in the beginning and 552.9MB in the end (delta: -383.2MB). Peak memory consumption was 387.7MB. Max. memory is 8.0GB. [2023-12-19 16:27:10,704 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 181.4MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 280.39ms. Allocated memory is still 225.4MB. Free memory was 174.1MB in the beginning and 158.8MB in the end (delta: 15.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.50ms. Allocated memory is still 225.4MB. Free memory was 158.8MB in the beginning and 155.3MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.51ms. Allocated memory is still 225.4MB. Free memory was 155.3MB in the beginning and 151.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 668.74ms. Allocated memory is still 225.4MB. Free memory was 151.1MB in the beginning and 170.2MB in the end (delta: -19.2MB). Peak memory consumption was 17.3MB. Max. memory is 8.0GB. * TraceAbstraction took 26273.62ms. Allocated memory was 225.4MB in the beginning and 663.7MB in the end (delta: 438.3MB). Free memory was 169.7MB in the beginning and 552.9MB in the end (delta: -383.2MB). Peak memory consumption was 387.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-19 16:27:10,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...