/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-a_file-89.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:31:54,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:31:54,380 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:31:54,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:31:54,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:31:54,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:31:54,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:31:54,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:31:54,405 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:31:54,408 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:31:54,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:31:54,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:31:54,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:31:54,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:31:54,410 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:31:54,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:31:54,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:31:54,411 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:31:54,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:31:54,411 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:31:54,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:31:54,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:31:54,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:31:54,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:31:54,413 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:31:54,413 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:31:54,413 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:31:54,413 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:31:54,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:31:54,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:31:54,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:31:54,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:31:54,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:31:54,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:31:54,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:31:54,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:31:54,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:31:54,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:31:54,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:31:54,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:31:54,416 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:31:54,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:31:54,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:31:54,416 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:31:54,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:31:54,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:31:54,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:31:54,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:31:54,581 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:31:54,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2023-12-15 21:31:55,677 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:31:55,841 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:31:55,842 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2023-12-15 21:31:55,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01fa9ae6/73de1b6cad0b483a9994a6bbd0da5de6/FLAG2eabfb222 [2023-12-15 21:31:55,864 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01fa9ae6/73de1b6cad0b483a9994a6bbd0da5de6 [2023-12-15 21:31:55,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:31:55,866 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:31:55,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:31:55,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:31:55,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:31:55,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:31:55" (1/1) ... [2023-12-15 21:31:55,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38653d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:55, skipping insertion in model container [2023-12-15 21:31:55,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:31:55" (1/1) ... [2023-12-15 21:31:55,906 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:31:56,050 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-a_file-89.i[916,929] [2023-12-15 21:31:56,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:31:56,091 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:31:56,098 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-a_file-89.i[916,929] [2023-12-15 21:31:56,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:31:56,131 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:31:56,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56 WrapperNode [2023-12-15 21:31:56,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:31:56,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:31:56,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:31:56,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:31:56,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,210 INFO L138 Inliner]: procedures = 26, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 444 [2023-12-15 21:31:56,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:31:56,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:31:56,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:31:56,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:31:56,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,226 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,255 INFO L175 MemorySlicer]: Split 107 memory accesses to 6 slices as follows [2, 44, 29, 5, 13, 14]. 41 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 5, 3, 1, 1, 2]. The 15 writes are split as follows [0, 8, 3, 1, 1, 2]. [2023-12-15 21:31:56,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:31:56,298 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:31:56,298 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:31:56,298 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:31:56,299 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (1/1) ... [2023-12-15 21:31:56,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:31:56,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:31:56,350 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) [2023-12-15 21:31:56,370 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 [2023-12-15 21:31:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:31:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 21:31:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 21:31:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-15 21:31:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-15 21:31:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-15 21:31:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-15 21:31:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 21:31:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 21:31:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-15 21:31:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-15 21:31:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-15 21:31:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-15 21:31:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:31:56,390 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:31:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:31:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 21:31:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 21:31:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 21:31:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 21:31:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-15 21:31:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:31:56,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:31:56,467 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:31:56,469 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:31:56,804 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:31:56,836 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:31:56,836 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:31:56,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:31:56 BoogieIcfgContainer [2023-12-15 21:31:56,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:31:56,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:31:56,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:31:56,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:31:56,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:31:55" (1/3) ... [2023-12-15 21:31:56,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e4841b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:31:56, skipping insertion in model container [2023-12-15 21:31:56,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:31:56" (2/3) ... [2023-12-15 21:31:56,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e4841b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:31:56, skipping insertion in model container [2023-12-15 21:31:56,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:31:56" (3/3) ... [2023-12-15 21:31:56,842 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-89.i [2023-12-15 21:31:56,854 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:31:56,855 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:31:56,887 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:31:56,892 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;@1db78e2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:31:56,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:31:56,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 77 states have (on average 1.4935064935064934) internal successors, (115), 78 states have internal predecessors, (115), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-15 21:31:56,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 21:31:56,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:31:56,907 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:31:56,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:31:56,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:31:56,911 INFO L85 PathProgramCache]: Analyzing trace with hash 180141942, now seen corresponding path program 1 times [2023-12-15 21:31:56,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:31:56,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337696892] [2023-12-15 21:31:56,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:56,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:31:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:31:57,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:31:57,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337696892] [2023-12-15 21:31:57,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 21:31:57,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445771445] [2023-12-15 21:31:57,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:57,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:31:57,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:31:57,095 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) [2023-12-15 21:31:57,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:31:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:31:57,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 21:31:57,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:31:57,306 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-12-15 21:31:57,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:31:57,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445771445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:31:57,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:31:57,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:31:57,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785106883] [2023-12-15 21:31:57,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:31:57,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:31:57,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:31:57,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:31:57,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:31:57,342 INFO L87 Difference]: Start difference. First operand has 93 states, 77 states have (on average 1.4935064935064934) internal successors, (115), 78 states have internal predecessors, (115), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 21:31:57,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:31:57,368 INFO L93 Difference]: Finished difference Result 183 states and 293 transitions. [2023-12-15 21:31:57,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:31:57,370 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2023-12-15 21:31:57,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:31:57,375 INFO L225 Difference]: With dead ends: 183 [2023-12-15 21:31:57,375 INFO L226 Difference]: Without dead ends: 91 [2023-12-15 21:31:57,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:31:57,380 INFO L413 NwaCegarLoop]: 130 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, 130 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 [2023-12-15 21:31:57,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:31:57,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-12-15 21:31:57,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-12-15 21:31:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 76 states have internal predecessors, (108), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-15 21:31:57,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 134 transitions. [2023-12-15 21:31:57,417 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 134 transitions. Word has length 104 [2023-12-15 21:31:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:31:57,417 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 134 transitions. [2023-12-15 21:31:57,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 21:31:57,417 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 134 transitions. [2023-12-15 21:31:57,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 21:31:57,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:31:57,420 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:31:57,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 21:31:57,620 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,SelfDestructingSolverStorable0 [2023-12-15 21:31:57,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:31:57,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:31:57,623 INFO L85 PathProgramCache]: Analyzing trace with hash 582534172, now seen corresponding path program 1 times [2023-12-15 21:31:57,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:31:57,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526171168] [2023-12-15 21:31:57,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:57,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:31:57,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:31:57,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1078389160] [2023-12-15 21:31:57,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:57,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:31:57,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:31:57,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:31:57,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 21:31:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:31:57,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:31:57,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:31:57,819 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:31:57,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:31:57,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:31:57,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526171168] [2023-12-15 21:31:57,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:31:57,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078389160] [2023-12-15 21:31:57,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078389160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:31:57,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:31:57,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:31:57,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275369012] [2023-12-15 21:31:57,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:31:57,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:31:57,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:31:57,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:31:57,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:31:57,822 INFO L87 Difference]: Start difference. First operand 91 states and 134 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:31:57,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:31:57,856 INFO L93 Difference]: Finished difference Result 193 states and 284 transitions. [2023-12-15 21:31:57,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:31:57,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-15 21:31:57,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:31:57,858 INFO L225 Difference]: With dead ends: 193 [2023-12-15 21:31:57,858 INFO L226 Difference]: Without dead ends: 103 [2023-12-15 21:31:57,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:31:57,859 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 21 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 381 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 [2023-12-15 21:31:57,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 381 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:31:57,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-15 21:31:57,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 93. [2023-12-15 21:31:57,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 78 states have (on average 1.4102564102564104) internal successors, (110), 78 states have internal predecessors, (110), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-15 21:31:57,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 136 transitions. [2023-12-15 21:31:57,867 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 136 transitions. Word has length 104 [2023-12-15 21:31:57,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:31:57,868 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 136 transitions. [2023-12-15 21:31:57,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:31:57,868 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 136 transitions. [2023-12-15 21:31:57,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 21:31:57,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:31:57,870 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:31:57,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 21:31:58,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 21:31:58,075 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:31:58,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:31:58,076 INFO L85 PathProgramCache]: Analyzing trace with hash -226812454, now seen corresponding path program 1 times [2023-12-15 21:31:58,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:31:58,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035708777] [2023-12-15 21:31:58,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:58,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:31:58,101 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:31:58,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [183468927] [2023-12-15 21:31:58,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:58,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:31:58,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:31:58,103 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:31:58,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 21:31:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:31:58,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:31:58,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:31:58,272 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:31:58,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:31:58,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:31:58,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035708777] [2023-12-15 21:31:58,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:31:58,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183468927] [2023-12-15 21:31:58,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183468927] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:31:58,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:31:58,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:31:58,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960487150] [2023-12-15 21:31:58,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:31:58,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:31:58,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:31:58,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:31:58,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:31:58,276 INFO L87 Difference]: Start difference. First operand 93 states and 136 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:31:58,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:31:58,323 INFO L93 Difference]: Finished difference Result 193 states and 282 transitions. [2023-12-15 21:31:58,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:31:58,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-15 21:31:58,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:31:58,326 INFO L225 Difference]: With dead ends: 193 [2023-12-15 21:31:58,326 INFO L226 Difference]: Without dead ends: 101 [2023-12-15 21:31:58,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:31:58,327 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 12 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 379 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 [2023-12-15 21:31:58,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 379 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:31:58,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-15 21:31:58,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 95. [2023-12-15 21:31:58,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 80 states have (on average 1.4) internal successors, (112), 80 states have internal predecessors, (112), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-15 21:31:58,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 138 transitions. [2023-12-15 21:31:58,334 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 138 transitions. Word has length 104 [2023-12-15 21:31:58,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:31:58,334 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 138 transitions. [2023-12-15 21:31:58,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:31:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 138 transitions. [2023-12-15 21:31:58,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 21:31:58,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:31:58,339 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:31:58,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-15 21:31:58,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:31:58,547 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:31:58,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:31:58,549 INFO L85 PathProgramCache]: Analyzing trace with hash -169554152, now seen corresponding path program 1 times [2023-12-15 21:31:58,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:31:58,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421633435] [2023-12-15 21:31:58,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:58,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:31:58,608 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:31:58,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [252204341] [2023-12-15 21:31:58,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:58,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:31:58,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:31:58,612 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:31:58,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 21:31:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:31:58,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:31:58,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:31:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:31:58,792 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:31:58,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:31:58,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421633435] [2023-12-15 21:31:58,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:31:58,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252204341] [2023-12-15 21:31:58,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252204341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:31:58,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:31:58,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:31:58,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512529222] [2023-12-15 21:31:58,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:31:58,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:31:58,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:31:58,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:31:58,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:31:58,794 INFO L87 Difference]: Start difference. First operand 95 states and 138 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:31:58,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:31:58,825 INFO L93 Difference]: Finished difference Result 193 states and 280 transitions. [2023-12-15 21:31:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:31:58,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-15 21:31:58,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:31:58,828 INFO L225 Difference]: With dead ends: 193 [2023-12-15 21:31:58,828 INFO L226 Difference]: Without dead ends: 99 [2023-12-15 21:31:58,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:31:58,832 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 3 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:31:58,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 379 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:31:58,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-15 21:31:58,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2023-12-15 21:31:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 82 states have internal predecessors, (114), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-15 21:31:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 140 transitions. [2023-12-15 21:31:58,838 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 140 transitions. Word has length 104 [2023-12-15 21:31:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:31:58,839 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 140 transitions. [2023-12-15 21:31:58,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:31:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 140 transitions. [2023-12-15 21:31:58,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 21:31:58,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:31:58,840 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:31:58,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 21:31:59,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:31:59,045 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:31:59,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:31:59,045 INFO L85 PathProgramCache]: Analyzing trace with hash -169494570, now seen corresponding path program 1 times [2023-12-15 21:31:59,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:31:59,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049029893] [2023-12-15 21:31:59,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:59,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:31:59,067 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:31:59,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487730201] [2023-12-15 21:31:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:59,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:31:59,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:31:59,069 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:31:59,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 21:31:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:31:59,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-15 21:31:59,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:31:59,274 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 43 treesize of output 23 [2023-12-15 21:31:59,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 38 treesize of output 22 [2023-12-15 21:31:59,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 23 treesize of output 15 [2023-12-15 21:31:59,333 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:31:59,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:31:59,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:31:59,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049029893] [2023-12-15 21:31:59,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:31:59,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487730201] [2023-12-15 21:31:59,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487730201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:31:59,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:31:59,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:31:59,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378782348] [2023-12-15 21:31:59,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:31:59,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:31:59,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:31:59,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:31:59,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:31:59,337 INFO L87 Difference]: Start difference. First operand 97 states and 140 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:31:59,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:31:59,518 INFO L93 Difference]: Finished difference Result 272 states and 392 transitions. [2023-12-15 21:31:59,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:31:59,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-15 21:31:59,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:31:59,520 INFO L225 Difference]: With dead ends: 272 [2023-12-15 21:31:59,520 INFO L226 Difference]: Without dead ends: 176 [2023-12-15 21:31:59,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:31:59,525 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 151 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:31:59,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 542 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:31:59,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-12-15 21:31:59,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 173. [2023-12-15 21:31:59,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 147 states have (on average 1.3877551020408163) internal successors, (204), 148 states have internal predecessors, (204), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-15 21:31:59,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 250 transitions. [2023-12-15 21:31:59,543 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 250 transitions. Word has length 104 [2023-12-15 21:31:59,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:31:59,543 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 250 transitions. [2023-12-15 21:31:59,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:31:59,543 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 250 transitions. [2023-12-15 21:31:59,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 21:31:59,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:31:59,555 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:31:59,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-15 21:31:59,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:31:59,763 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:31:59,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:31:59,764 INFO L85 PathProgramCache]: Analyzing trace with hash -297658337, now seen corresponding path program 1 times [2023-12-15 21:31:59,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:31:59,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580744264] [2023-12-15 21:31:59,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:59,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:31:59,805 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:31:59,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1823155646] [2023-12-15 21:31:59,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:31:59,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:31:59,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:31:59,817 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:31:59,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 21:31:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:31:59,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-15 21:31:59,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:00,116 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 41 treesize of output 25 [2023-12-15 21:32:00,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:32:00,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 41 [2023-12-15 21:32:00,261 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-15 21:32:00,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:32:00,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 59 treesize of output 35 [2023-12-15 21:32:00,451 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:00,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:00,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580744264] [2023-12-15 21:32:00,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:00,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823155646] [2023-12-15 21:32:00,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823155646] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:32:00,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:32:00,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2023-12-15 21:32:00,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169346348] [2023-12-15 21:32:00,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:00,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:32:00,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:00,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:32:00,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-12-15 21:32:00,453 INFO L87 Difference]: Start difference. First operand 173 states and 250 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:00,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:00,829 INFO L93 Difference]: Finished difference Result 445 states and 639 transitions. [2023-12-15 21:32:00,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 21:32:00,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-15 21:32:00,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:00,832 INFO L225 Difference]: With dead ends: 445 [2023-12-15 21:32:00,832 INFO L226 Difference]: Without dead ends: 273 [2023-12-15 21:32:00,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2023-12-15 21:32:00,833 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 239 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:00,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 850 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:32:00,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-12-15 21:32:00,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 237. [2023-12-15 21:32:00,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 208 states have (on average 1.3942307692307692) internal successors, (290), 210 states have internal predecessors, (290), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-15 21:32:00,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 340 transitions. [2023-12-15 21:32:00,845 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 340 transitions. Word has length 104 [2023-12-15 21:32:00,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:00,846 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 340 transitions. [2023-12-15 21:32:00,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:00,846 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 340 transitions. [2023-12-15 21:32:00,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 21:32:00,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:00,847 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:00,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-15 21:32:01,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:01,058 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:01,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:01,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1577522015, now seen corresponding path program 1 times [2023-12-15 21:32:01,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:01,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433571524] [2023-12-15 21:32:01,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:01,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:01,102 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:01,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873881568] [2023-12-15 21:32:01,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:01,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:01,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:01,120 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:01,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 21:32:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:01,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-15 21:32:01,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:01,391 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 26 treesize of output 14 [2023-12-15 21:32:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:01,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:01,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:01,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433571524] [2023-12-15 21:32:01,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:01,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873881568] [2023-12-15 21:32:01,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873881568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:01,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:01,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:32:01,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660172945] [2023-12-15 21:32:01,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:01,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:32:01,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:01,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:32:01,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:32:01,412 INFO L87 Difference]: Start difference. First operand 237 states and 340 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:01,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:01,610 INFO L93 Difference]: Finished difference Result 481 states and 686 transitions. [2023-12-15 21:32:01,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:32:01,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-15 21:32:01,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:01,612 INFO L225 Difference]: With dead ends: 481 [2023-12-15 21:32:01,612 INFO L226 Difference]: Without dead ends: 245 [2023-12-15 21:32:01,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:32:01,613 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 192 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:01,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 469 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:32:01,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-12-15 21:32:01,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 242. [2023-12-15 21:32:01,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 210 states have (on average 1.380952380952381) internal successors, (290), 212 states have internal predecessors, (290), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 21:32:01,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 344 transitions. [2023-12-15 21:32:01,624 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 344 transitions. Word has length 104 [2023-12-15 21:32:01,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:01,624 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 344 transitions. [2023-12-15 21:32:01,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:01,625 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 344 transitions. [2023-12-15 21:32:01,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 21:32:01,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:01,625 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:01,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:01,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:01,832 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:01,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:01,832 INFO L85 PathProgramCache]: Analyzing trace with hash 125043489, now seen corresponding path program 1 times [2023-12-15 21:32:01,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:01,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154759966] [2023-12-15 21:32:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:01,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:01,847 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:01,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110026315] [2023-12-15 21:32:01,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:01,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:01,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:01,848 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:01,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 21:32:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:01,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-15 21:32:01,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 148 proven. 24 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-15 21:32:02,056 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:32:02,160 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-15 21:32:02,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:02,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154759966] [2023-12-15 21:32:02,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:02,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110026315] [2023-12-15 21:32:02,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110026315] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:32:02,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:32:02,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-15 21:32:02,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782228131] [2023-12-15 21:32:02,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:32:02,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 21:32:02,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:02,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 21:32:02,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-15 21:32:02,161 INFO L87 Difference]: Start difference. First operand 242 states and 344 transitions. Second operand has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-15 21:32:02,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:02,406 INFO L93 Difference]: Finished difference Result 445 states and 622 transitions. [2023-12-15 21:32:02,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 21:32:02,407 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) Word has length 104 [2023-12-15 21:32:02,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:02,408 INFO L225 Difference]: With dead ends: 445 [2023-12-15 21:32:02,408 INFO L226 Difference]: Without dead ends: 204 [2023-12-15 21:32:02,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-12-15 21:32:02,409 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 261 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:02,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 419 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:32:02,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-15 21:32:02,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 197. [2023-12-15 21:32:02,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 163 states have (on average 1.3312883435582823) internal successors, (217), 165 states have internal predecessors, (217), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 21:32:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 271 transitions. [2023-12-15 21:32:02,417 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 271 transitions. Word has length 104 [2023-12-15 21:32:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:02,417 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 271 transitions. [2023-12-15 21:32:02,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-15 21:32:02,417 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 271 transitions. [2023-12-15 21:32:02,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 21:32:02,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:02,418 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:02,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:02,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-15 21:32:02,624 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:02,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:02,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1185575501, now seen corresponding path program 1 times [2023-12-15 21:32:02,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:02,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920084282] [2023-12-15 21:32:02,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:02,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:02,638 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:02,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449940694] [2023-12-15 21:32:02,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:02,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:02,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:02,640 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:02,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-15 21:32:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:02,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-15 21:32:02,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:02,845 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 64 treesize of output 48 [2023-12-15 21:32:02,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 70 [2023-12-15 21:32:02,870 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:32:02,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2023-12-15 21:32:02,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:32:02,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 41 [2023-12-15 21:32:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-15 21:32:02,996 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:32:03,173 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:03,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:03,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920084282] [2023-12-15 21:32:03,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:03,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449940694] [2023-12-15 21:32:03,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449940694] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:32:03,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:32:03,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2023-12-15 21:32:03,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623651318] [2023-12-15 21:32:03,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:03,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:32:03,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:03,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:32:03,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-12-15 21:32:03,175 INFO L87 Difference]: Start difference. First operand 197 states and 271 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:03,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:03,513 INFO L93 Difference]: Finished difference Result 514 states and 714 transitions. [2023-12-15 21:32:03,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 21:32:03,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-15 21:32:03,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:03,516 INFO L225 Difference]: With dead ends: 514 [2023-12-15 21:32:03,516 INFO L226 Difference]: Without dead ends: 326 [2023-12-15 21:32:03,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2023-12-15 21:32:03,518 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 268 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:03,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 954 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:32:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2023-12-15 21:32:03,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 215. [2023-12-15 21:32:03,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 181 states have (on average 1.3535911602209945) internal successors, (245), 183 states have internal predecessors, (245), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 21:32:03,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 299 transitions. [2023-12-15 21:32:03,530 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 299 transitions. Word has length 104 [2023-12-15 21:32:03,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:03,531 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 299 transitions. [2023-12-15 21:32:03,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 299 transitions. [2023-12-15 21:32:03,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 21:32:03,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:03,532 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:03,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:03,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:03,738 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:03,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:03,739 INFO L85 PathProgramCache]: Analyzing trace with hash -94288177, now seen corresponding path program 1 times [2023-12-15 21:32:03,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:03,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703713367] [2023-12-15 21:32:03,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:03,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:03,752 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:03,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [604566073] [2023-12-15 21:32:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:03,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:03,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:03,754 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:03,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-15 21:32:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:03,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-15 21:32:03,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:03,916 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 29 treesize of output 13 [2023-12-15 21:32:03,937 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 29 treesize of output 13 [2023-12-15 21:32:04,031 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 23 treesize of output 22 [2023-12-15 21:32:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 22 proven. 66 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-12-15 21:32:04,086 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:32:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-15 21:32:04,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:04,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703713367] [2023-12-15 21:32:04,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:04,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604566073] [2023-12-15 21:32:04,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604566073] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:32:04,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:32:04,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2023-12-15 21:32:04,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536460078] [2023-12-15 21:32:04,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:32:04,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-15 21:32:04,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:04,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-15 21:32:04,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2023-12-15 21:32:04,317 INFO L87 Difference]: Start difference. First operand 215 states and 299 transitions. Second operand has 20 states, 18 states have (on average 3.388888888888889) internal successors, (61), 20 states have internal predecessors, (61), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-15 21:32:05,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:05,309 INFO L93 Difference]: Finished difference Result 497 states and 679 transitions. [2023-12-15 21:32:05,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-15 21:32:05,310 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.388888888888889) internal successors, (61), 20 states have internal predecessors, (61), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26) Word has length 104 [2023-12-15 21:32:05,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:05,311 INFO L225 Difference]: With dead ends: 497 [2023-12-15 21:32:05,311 INFO L226 Difference]: Without dead ends: 291 [2023-12-15 21:32:05,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 186 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=275, Invalid=1365, Unknown=0, NotChecked=0, Total=1640 [2023-12-15 21:32:05,312 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 408 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:05,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1463 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 21:32:05,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-12-15 21:32:05,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 217. [2023-12-15 21:32:05,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 177 states have (on average 1.305084745762712) internal successors, (231), 179 states have internal predecessors, (231), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:32:05,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 291 transitions. [2023-12-15 21:32:05,323 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 291 transitions. Word has length 104 [2023-12-15 21:32:05,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:05,323 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 291 transitions. [2023-12-15 21:32:05,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.388888888888889) internal successors, (61), 20 states have internal predecessors, (61), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-15 21:32:05,323 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 291 transitions. [2023-12-15 21:32:05,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-15 21:32:05,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:05,324 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:05,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:05,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-15 21:32:05,525 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:05,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:05,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1057411734, now seen corresponding path program 1 times [2023-12-15 21:32:05,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:05,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139996587] [2023-12-15 21:32:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:05,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:05,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:05,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1191341515] [2023-12-15 21:32:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:05,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:05,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:05,540 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:05,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-15 21:32:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:05,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-15 21:32:05,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:05,693 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 45 treesize of output 25 [2023-12-15 21:32:05,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 40 treesize of output 24 [2023-12-15 21:32:05,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 25 treesize of output 17 [2023-12-15 21:32:05,715 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:05,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:05,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:05,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139996587] [2023-12-15 21:32:05,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:05,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191341515] [2023-12-15 21:32:05,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191341515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:05,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:05,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:32:05,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420122587] [2023-12-15 21:32:05,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:05,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:32:05,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:05,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:32:05,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:32:05,716 INFO L87 Difference]: Start difference. First operand 217 states and 291 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:05,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:05,841 INFO L93 Difference]: Finished difference Result 423 states and 564 transitions. [2023-12-15 21:32:05,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:32:05,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2023-12-15 21:32:05,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:05,842 INFO L225 Difference]: With dead ends: 423 [2023-12-15 21:32:05,842 INFO L226 Difference]: Without dead ends: 219 [2023-12-15 21:32:05,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:32:05,843 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 149 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:05,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 571 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:32:05,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-15 21:32:05,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 207. [2023-12-15 21:32:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 170 states have (on average 1.3) internal successors, (221), 172 states have internal predecessors, (221), 27 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 21:32:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 275 transitions. [2023-12-15 21:32:05,853 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 275 transitions. Word has length 104 [2023-12-15 21:32:05,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:05,853 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 275 transitions. [2023-12-15 21:32:05,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 275 transitions. [2023-12-15 21:32:05,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-15 21:32:05,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:05,854 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:05,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:06,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-15 21:32:06,061 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:06,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:06,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1742077805, now seen corresponding path program 1 times [2023-12-15 21:32:06,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:06,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720506027] [2023-12-15 21:32:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:06,075 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:06,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041172237] [2023-12-15 21:32:06,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:06,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:06,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:06,105 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:06,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-15 21:32:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:06,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-15 21:32:06,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:06,238 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:06,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:06,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:06,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720506027] [2023-12-15 21:32:06,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:06,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041172237] [2023-12-15 21:32:06,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041172237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:06,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:06,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:32:06,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301963101] [2023-12-15 21:32:06,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:06,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:32:06,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:06,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:32:06,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:32:06,240 INFO L87 Difference]: Start difference. First operand 207 states and 275 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:06,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:06,272 INFO L93 Difference]: Finished difference Result 457 states and 614 transitions. [2023-12-15 21:32:06,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:32:06,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 106 [2023-12-15 21:32:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:06,273 INFO L225 Difference]: With dead ends: 457 [2023-12-15 21:32:06,273 INFO L226 Difference]: Without dead ends: 263 [2023-12-15 21:32:06,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:32:06,274 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 115 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:06,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 463 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:32:06,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-12-15 21:32:06,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 213. [2023-12-15 21:32:06,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 176 states have (on average 1.2897727272727273) internal successors, (227), 178 states have internal predecessors, (227), 27 states have call successors, (27), 9 states have call predecessors, (27), 9 states have return successors, (27), 25 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 21:32:06,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 281 transitions. [2023-12-15 21:32:06,289 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 281 transitions. Word has length 106 [2023-12-15 21:32:06,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:06,289 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 281 transitions. [2023-12-15 21:32:06,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 281 transitions. [2023-12-15 21:32:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-15 21:32:06,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:06,290 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:06,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:06,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-15 21:32:06,495 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:06,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:06,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1226294388, now seen corresponding path program 1 times [2023-12-15 21:32:06,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:06,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025068442] [2023-12-15 21:32:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:06,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:06,509 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:06,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [495806408] [2023-12-15 21:32:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:06,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:06,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:06,510 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:06,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-15 21:32:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:06,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-15 21:32:06,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:06,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 15 [2023-12-15 21:32:06,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 67 treesize of output 51 [2023-12-15 21:32:06,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 70 treesize of output 28 [2023-12-15 21:32:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-15 21:32:06,930 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:06,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:06,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025068442] [2023-12-15 21:32:06,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:06,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495806408] [2023-12-15 21:32:06,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495806408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:06,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:06,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 21:32:06,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071416385] [2023-12-15 21:32:06,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:06,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 21:32:06,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:06,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 21:32:06,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-15 21:32:06,932 INFO L87 Difference]: Start difference. First operand 213 states and 281 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 21:32:07,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:07,326 INFO L93 Difference]: Finished difference Result 302 states and 397 transitions. [2023-12-15 21:32:07,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-15 21:32:07,326 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2023-12-15 21:32:07,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:07,328 INFO L225 Difference]: With dead ends: 302 [2023-12-15 21:32:07,328 INFO L226 Difference]: Without dead ends: 300 [2023-12-15 21:32:07,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2023-12-15 21:32:07,328 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 268 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:07,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 841 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 21:32:07,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-15 21:32:07,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 223. [2023-12-15 21:32:07,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 184 states have (on average 1.2771739130434783) internal successors, (235), 186 states have internal predecessors, (235), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-15 21:32:07,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 291 transitions. [2023-12-15 21:32:07,340 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 291 transitions. Word has length 108 [2023-12-15 21:32:07,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:07,340 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 291 transitions. [2023-12-15 21:32:07,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 21:32:07,340 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 291 transitions. [2023-12-15 21:32:07,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-15 21:32:07,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:07,341 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:07,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:07,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-15 21:32:07,547 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:07,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:07,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1226234806, now seen corresponding path program 1 times [2023-12-15 21:32:07,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:07,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319413424] [2023-12-15 21:32:07,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:07,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:07,563 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:07,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844694775] [2023-12-15 21:32:07,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:07,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:07,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:07,569 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:07,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-15 21:32:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:07,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-15 21:32:07,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:07,705 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 17 treesize of output 13 [2023-12-15 21:32:07,713 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 33 treesize of output 17 [2023-12-15 21:32:07,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 55 treesize of output 37 [2023-12-15 21:32:07,744 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:07,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:07,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:07,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319413424] [2023-12-15 21:32:07,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:07,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844694775] [2023-12-15 21:32:07,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844694775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:07,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:07,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:32:07,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120000926] [2023-12-15 21:32:07,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:07,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:32:07,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:07,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:32:07,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:32:07,745 INFO L87 Difference]: Start difference. First operand 223 states and 291 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:07,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:07,820 INFO L93 Difference]: Finished difference Result 456 states and 597 transitions. [2023-12-15 21:32:07,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:32:07,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2023-12-15 21:32:07,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:07,821 INFO L225 Difference]: With dead ends: 456 [2023-12-15 21:32:07,821 INFO L226 Difference]: Without dead ends: 252 [2023-12-15 21:32:07,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:32:07,822 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 110 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:07,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 488 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:32:07,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-12-15 21:32:07,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 223. [2023-12-15 21:32:07,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 184 states have (on average 1.266304347826087) internal successors, (233), 186 states have internal predecessors, (233), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-15 21:32:07,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 289 transitions. [2023-12-15 21:32:07,835 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 289 transitions. Word has length 108 [2023-12-15 21:32:07,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:07,835 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 289 transitions. [2023-12-15 21:32:07,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:07,835 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 289 transitions. [2023-12-15 21:32:07,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-15 21:32:07,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:07,836 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:07,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:08,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:08,042 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:08,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:08,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1168976504, now seen corresponding path program 1 times [2023-12-15 21:32:08,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:08,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549315621] [2023-12-15 21:32:08,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:08,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:08,074 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:08,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [593343016] [2023-12-15 21:32:08,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:08,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:08,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:08,086 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:08,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-15 21:32:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:08,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-15 21:32:08,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:08,246 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 17 treesize of output 13 [2023-12-15 21:32:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:08,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:08,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:08,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549315621] [2023-12-15 21:32:08,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:08,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593343016] [2023-12-15 21:32:08,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593343016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:08,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:08,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:32:08,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651515605] [2023-12-15 21:32:08,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:08,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:32:08,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:08,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:32:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:32:08,274 INFO L87 Difference]: Start difference. First operand 223 states and 289 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:08,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:08,336 INFO L93 Difference]: Finished difference Result 442 states and 572 transitions. [2023-12-15 21:32:08,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:32:08,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2023-12-15 21:32:08,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:08,338 INFO L225 Difference]: With dead ends: 442 [2023-12-15 21:32:08,338 INFO L226 Difference]: Without dead ends: 238 [2023-12-15 21:32:08,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:32:08,340 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 92 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:08,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 458 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:32:08,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-15 21:32:08,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 237. [2023-12-15 21:32:08,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 193 states have (on average 1.2435233160621761) internal successors, (240), 195 states have internal predecessors, (240), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-15 21:32:08,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 302 transitions. [2023-12-15 21:32:08,359 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 302 transitions. Word has length 108 [2023-12-15 21:32:08,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:08,359 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 302 transitions. [2023-12-15 21:32:08,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:08,359 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 302 transitions. [2023-12-15 21:32:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-15 21:32:08,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:08,361 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:08,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:08,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-15 21:32:08,567 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:08,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:08,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1978323130, now seen corresponding path program 1 times [2023-12-15 21:32:08,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:08,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035846754] [2023-12-15 21:32:08,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:08,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:08,582 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:08,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855289316] [2023-12-15 21:32:08,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:08,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:08,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:08,583 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:08,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-15 21:32:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:08,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-15 21:32:08,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:08,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:08,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:08,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035846754] [2023-12-15 21:32:08,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:08,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855289316] [2023-12-15 21:32:08,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855289316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:08,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:08,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:32:08,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452706881] [2023-12-15 21:32:08,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:08,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:32:08,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:08,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:32:08,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:32:08,757 INFO L87 Difference]: Start difference. First operand 237 states and 302 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:08,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:08,792 INFO L93 Difference]: Finished difference Result 465 states and 591 transitions. [2023-12-15 21:32:08,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:32:08,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2023-12-15 21:32:08,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:08,809 INFO L225 Difference]: With dead ends: 465 [2023-12-15 21:32:08,809 INFO L226 Difference]: Without dead ends: 253 [2023-12-15 21:32:08,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:32:08,810 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 34 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:08,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 468 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:32:08,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-12-15 21:32:08,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 243. [2023-12-15 21:32:08,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 199 states have (on average 1.236180904522613) internal successors, (246), 201 states have internal predecessors, (246), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-15 21:32:08,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 308 transitions. [2023-12-15 21:32:08,824 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 308 transitions. Word has length 108 [2023-12-15 21:32:08,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:08,824 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 308 transitions. [2023-12-15 21:32:08,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:08,824 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 308 transitions. [2023-12-15 21:32:08,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-15 21:32:08,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:08,825 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:08,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:09,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-15 21:32:09,031 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:09,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:09,031 INFO L85 PathProgramCache]: Analyzing trace with hash -717304088, now seen corresponding path program 1 times [2023-12-15 21:32:09,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:09,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005424360] [2023-12-15 21:32:09,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:09,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:09,048 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:09,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576667468] [2023-12-15 21:32:09,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:09,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:09,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:09,050 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:09,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-15 21:32:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:09,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:32:09,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:09,217 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:09,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:09,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005424360] [2023-12-15 21:32:09,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:09,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576667468] [2023-12-15 21:32:09,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576667468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:09,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:09,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:32:09,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247650568] [2023-12-15 21:32:09,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:09,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:32:09,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:09,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:32:09,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:32:09,219 INFO L87 Difference]: Start difference. First operand 243 states and 308 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:09,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:09,248 INFO L93 Difference]: Finished difference Result 571 states and 735 transitions. [2023-12-15 21:32:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:32:09,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 108 [2023-12-15 21:32:09,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:09,249 INFO L225 Difference]: With dead ends: 571 [2023-12-15 21:32:09,249 INFO L226 Difference]: Without dead ends: 353 [2023-12-15 21:32:09,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:32:09,250 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 124 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:09,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 349 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:32:09,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-12-15 21:32:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 285. [2023-12-15 21:32:09,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 241 states have (on average 1.2738589211618256) internal successors, (307), 243 states have internal predecessors, (307), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-15 21:32:09,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 369 transitions. [2023-12-15 21:32:09,263 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 369 transitions. Word has length 108 [2023-12-15 21:32:09,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:09,263 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 369 transitions. [2023-12-15 21:32:09,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:09,263 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 369 transitions. [2023-12-15 21:32:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-15 21:32:09,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:09,264 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:09,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:09,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-15 21:32:09,470 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:09,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:09,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1319089133, now seen corresponding path program 1 times [2023-12-15 21:32:09,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:09,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188940280] [2023-12-15 21:32:09,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:09,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:09,483 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:09,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540869652] [2023-12-15 21:32:09,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:09,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:09,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:09,484 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:09,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-15 21:32:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:09,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-15 21:32:09,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:09,681 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 81 treesize of output 53 [2023-12-15 21:32:09,807 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:32:09,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 42 [2023-12-15 21:32:09,854 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-15 21:32:09,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:32:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:10,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:10,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188940280] [2023-12-15 21:32:10,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:10,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540869652] [2023-12-15 21:32:10,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540869652] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:32:10,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:32:10,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 14 [2023-12-15 21:32:10,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933298502] [2023-12-15 21:32:10,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:10,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 21:32:10,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:10,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 21:32:10,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-15 21:32:10,095 INFO L87 Difference]: Start difference. First operand 285 states and 369 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:10,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:10,654 INFO L93 Difference]: Finished difference Result 910 states and 1177 transitions. [2023-12-15 21:32:10,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 21:32:10,655 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 110 [2023-12-15 21:32:10,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:10,657 INFO L225 Difference]: With dead ends: 910 [2023-12-15 21:32:10,657 INFO L226 Difference]: Without dead ends: 650 [2023-12-15 21:32:10,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 205 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2023-12-15 21:32:10,658 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 370 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:10,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1451 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:32:10,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-12-15 21:32:10,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 466. [2023-12-15 21:32:10,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 403 states have (on average 1.2754342431761787) internal successors, (514), 407 states have internal predecessors, (514), 43 states have call successors, (43), 19 states have call predecessors, (43), 19 states have return successors, (43), 39 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-15 21:32:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 600 transitions. [2023-12-15 21:32:10,681 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 600 transitions. Word has length 110 [2023-12-15 21:32:10,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:10,682 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 600 transitions. [2023-12-15 21:32:10,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:10,682 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 600 transitions. [2023-12-15 21:32:10,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-15 21:32:10,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:10,683 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:10,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:10,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-15 21:32:10,888 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:10,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:10,889 INFO L85 PathProgramCache]: Analyzing trace with hash 307971883, now seen corresponding path program 1 times [2023-12-15 21:32:10,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:10,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940519042] [2023-12-15 21:32:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:10,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:10,903 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:10,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951113355] [2023-12-15 21:32:10,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:10,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:10,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:10,914 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:10,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-15 21:32:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:11,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-15 21:32:11,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:11,169 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:32:11,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 20 [2023-12-15 21:32:11,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:32:11,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2023-12-15 21:32:11,207 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:11,207 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:11,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:11,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940519042] [2023-12-15 21:32:11,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:11,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951113355] [2023-12-15 21:32:11,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951113355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:11,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:11,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:32:11,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069374651] [2023-12-15 21:32:11,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:11,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:32:11,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:11,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:32:11,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:32:11,209 INFO L87 Difference]: Start difference. First operand 466 states and 600 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:11,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:11,421 INFO L93 Difference]: Finished difference Result 1033 states and 1330 transitions. [2023-12-15 21:32:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:32:11,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 110 [2023-12-15 21:32:11,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:11,426 INFO L225 Difference]: With dead ends: 1033 [2023-12-15 21:32:11,426 INFO L226 Difference]: Without dead ends: 592 [2023-12-15 21:32:11,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:32:11,427 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 246 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:11,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 711 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:32:11,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-12-15 21:32:11,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 454. [2023-12-15 21:32:11,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 391 states have (on average 1.2736572890025575) internal successors, (498), 395 states have internal predecessors, (498), 43 states have call successors, (43), 19 states have call predecessors, (43), 19 states have return successors, (43), 39 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-15 21:32:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 584 transitions. [2023-12-15 21:32:11,451 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 584 transitions. Word has length 110 [2023-12-15 21:32:11,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:11,451 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 584 transitions. [2023-12-15 21:32:11,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 584 transitions. [2023-12-15 21:32:11,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-15 21:32:11,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:11,453 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:11,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:11,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:11,658 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:11,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:11,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1589674769, now seen corresponding path program 1 times [2023-12-15 21:32:11,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:11,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129633757] [2023-12-15 21:32:11,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:11,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:11,675 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:11,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1834042733] [2023-12-15 21:32:11,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:11,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:11,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:11,676 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:11,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-15 21:32:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:11,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-15 21:32:11,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:11,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:32:11,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 20 [2023-12-15 21:32:12,003 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:32:12,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2023-12-15 21:32:12,009 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:12,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:12,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:12,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129633757] [2023-12-15 21:32:12,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:12,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834042733] [2023-12-15 21:32:12,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834042733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:12,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:12,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:32:12,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403749539] [2023-12-15 21:32:12,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:12,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:32:12,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:12,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:32:12,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:32:12,010 INFO L87 Difference]: Start difference. First operand 454 states and 584 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:12,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:12,181 INFO L93 Difference]: Finished difference Result 1071 states and 1366 transitions. [2023-12-15 21:32:12,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:32:12,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 110 [2023-12-15 21:32:12,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:12,183 INFO L225 Difference]: With dead ends: 1071 [2023-12-15 21:32:12,183 INFO L226 Difference]: Without dead ends: 642 [2023-12-15 21:32:12,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:32:12,184 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 215 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:12,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 613 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:32:12,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-12-15 21:32:12,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 458. [2023-12-15 21:32:12,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 394 states have (on average 1.266497461928934) internal successors, (499), 398 states have internal predecessors, (499), 43 states have call successors, (43), 20 states have call predecessors, (43), 20 states have return successors, (43), 39 states have call predecessors, (43), 43 states have call successors, (43) [2023-12-15 21:32:12,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 585 transitions. [2023-12-15 21:32:12,214 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 585 transitions. Word has length 110 [2023-12-15 21:32:12,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:12,214 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 585 transitions. [2023-12-15 21:32:12,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:12,214 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 585 transitions. [2023-12-15 21:32:12,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-15 21:32:12,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:12,215 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:12,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:12,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:12,422 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:12,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:12,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1694175277, now seen corresponding path program 1 times [2023-12-15 21:32:12,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:12,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403957937] [2023-12-15 21:32:12,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:12,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:12,441 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:12,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018829535] [2023-12-15 21:32:12,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:12,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:12,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:12,442 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:12,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-15 21:32:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:12,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-15 21:32:12,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:12,710 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 65 treesize of output 41 [2023-12-15 21:32:12,856 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:32:12,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 32 [2023-12-15 21:32:12,898 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-15 21:32:12,898 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:32:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:13,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:13,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403957937] [2023-12-15 21:32:13,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:13,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018829535] [2023-12-15 21:32:13,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018829535] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:32:13,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:32:13,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 16 [2023-12-15 21:32:13,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798741159] [2023-12-15 21:32:13,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:13,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 21:32:13,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:13,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 21:32:13,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-12-15 21:32:13,116 INFO L87 Difference]: Start difference. First operand 458 states and 585 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:13,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:13,570 INFO L93 Difference]: Finished difference Result 1147 states and 1458 transitions. [2023-12-15 21:32:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 21:32:13,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 110 [2023-12-15 21:32:13,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:13,573 INFO L225 Difference]: With dead ends: 1147 [2023-12-15 21:32:13,573 INFO L226 Difference]: Without dead ends: 718 [2023-12-15 21:32:13,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2023-12-15 21:32:13,574 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 280 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:13,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1450 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:32:13,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-12-15 21:32:13,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 586. [2023-12-15 21:32:13,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 497 states have (on average 1.2474849094567404) internal successors, (620), 503 states have internal predecessors, (620), 59 states have call successors, (59), 29 states have call predecessors, (59), 29 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-15 21:32:13,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 738 transitions. [2023-12-15 21:32:13,610 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 738 transitions. Word has length 110 [2023-12-15 21:32:13,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:13,611 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 738 transitions. [2023-12-15 21:32:13,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:13,611 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 738 transitions. [2023-12-15 21:32:13,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 21:32:13,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:13,612 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:13,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:13,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:13,817 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:13,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:13,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2061867531, now seen corresponding path program 1 times [2023-12-15 21:32:13,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:13,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685367156] [2023-12-15 21:32:13,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:13,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:13,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:13,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [792184103] [2023-12-15 21:32:13,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:13,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:13,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:13,849 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:13,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-15 21:32:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:13,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-15 21:32:13,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:14,012 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:14,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:14,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:14,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685367156] [2023-12-15 21:32:14,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:14,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792184103] [2023-12-15 21:32:14,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792184103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:14,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:14,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 21:32:14,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507901608] [2023-12-15 21:32:14,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:14,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:32:14,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:14,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:32:14,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:32:14,014 INFO L87 Difference]: Start difference. First operand 586 states and 738 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:14,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:14,094 INFO L93 Difference]: Finished difference Result 1227 states and 1532 transitions. [2023-12-15 21:32:14,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:32:14,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2023-12-15 21:32:14,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:14,096 INFO L225 Difference]: With dead ends: 1227 [2023-12-15 21:32:14,096 INFO L226 Difference]: Without dead ends: 670 [2023-12-15 21:32:14,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-15 21:32:14,098 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 43 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:14,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 589 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:32:14,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2023-12-15 21:32:14,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 592. [2023-12-15 21:32:14,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 503 states have (on average 1.2445328031809144) internal successors, (626), 509 states have internal predecessors, (626), 59 states have call successors, (59), 29 states have call predecessors, (59), 29 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-15 21:32:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 744 transitions. [2023-12-15 21:32:14,133 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 744 transitions. Word has length 111 [2023-12-15 21:32:14,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:14,133 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 744 transitions. [2023-12-15 21:32:14,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:14,133 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 744 transitions. [2023-12-15 21:32:14,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-15 21:32:14,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:14,134 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:14,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:14,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:14,339 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:14,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:14,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1986480272, now seen corresponding path program 1 times [2023-12-15 21:32:14,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:14,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887311230] [2023-12-15 21:32:14,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:14,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:14,357 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:14,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [955305734] [2023-12-15 21:32:14,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:14,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:14,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:14,362 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:14,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-15 21:32:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:14,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 21:32:14,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-15 21:32:14,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:32:14,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:14,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887311230] [2023-12-15 21:32:14,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:14,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955305734] [2023-12-15 21:32:14,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955305734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:32:14,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:32:14,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:32:14,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15120189] [2023-12-15 21:32:14,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:32:14,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:32:14,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:14,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:32:14,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:32:14,522 INFO L87 Difference]: Start difference. First operand 592 states and 744 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:14,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:14,577 INFO L93 Difference]: Finished difference Result 1209 states and 1514 transitions. [2023-12-15 21:32:14,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:32:14,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 113 [2023-12-15 21:32:14,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:14,579 INFO L225 Difference]: With dead ends: 1209 [2023-12-15 21:32:14,579 INFO L226 Difference]: Without dead ends: 646 [2023-12-15 21:32:14,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:32:14,581 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 9 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:14,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 252 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:32:14,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-15 21:32:14,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 598. [2023-12-15 21:32:14,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 509 states have (on average 1.2416502946954813) internal successors, (632), 515 states have internal predecessors, (632), 59 states have call successors, (59), 29 states have call predecessors, (59), 29 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-15 21:32:14,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 750 transitions. [2023-12-15 21:32:14,615 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 750 transitions. Word has length 113 [2023-12-15 21:32:14,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:14,615 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 750 transitions. [2023-12-15 21:32:14,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-15 21:32:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 750 transitions. [2023-12-15 21:32:14,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-15 21:32:14,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:32:14,616 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:14,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-12-15 21:32:14,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:14,822 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:32:14,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:32:14,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1028623346, now seen corresponding path program 1 times [2023-12-15 21:32:14,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:32:14,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009568844] [2023-12-15 21:32:14,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:14,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:32:14,834 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:32:14,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396699592] [2023-12-15 21:32:14,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:32:14,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:14,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:32:14,836 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:32:14,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-15 21:32:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:32:15,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-15 21:32:15,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:32:15,077 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 29 treesize of output 13 [2023-12-15 21:32:15,092 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 29 treesize of output 13 [2023-12-15 21:32:15,175 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 29 treesize of output 13 [2023-12-15 21:32:15,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 35 treesize of output 23 [2023-12-15 21:32:15,207 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 58 proven. 33 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-12-15 21:32:15,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:32:15,399 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 3 proven. 33 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-15 21:32:15,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:32:15,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009568844] [2023-12-15 21:32:15,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:32:15,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396699592] [2023-12-15 21:32:15,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396699592] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:32:15,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:32:15,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-15 21:32:15,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200885188] [2023-12-15 21:32:15,400 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:32:15,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 21:32:15,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:32:15,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 21:32:15,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-15 21:32:15,401 INFO L87 Difference]: Start difference. First operand 598 states and 750 transitions. Second operand has 10 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2023-12-15 21:32:15,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:32:15,693 INFO L93 Difference]: Finished difference Result 1109 states and 1361 transitions. [2023-12-15 21:32:15,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 21:32:15,694 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) Word has length 113 [2023-12-15 21:32:15,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:32:15,694 INFO L225 Difference]: With dead ends: 1109 [2023-12-15 21:32:15,694 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 21:32:15,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 212 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-12-15 21:32:15,697 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 190 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:32:15,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 321 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:32:15,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 21:32:15,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 21:32:15,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 21:32:15,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 21:32:15,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2023-12-15 21:32:15,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:32:15,700 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 21:32:15,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 4 states have call successors, (25) [2023-12-15 21:32:15,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 21:32:15,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 21:32:15,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:32:15,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-15 21:32:15,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:32:15,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 21:32:30,499 WARN L293 SmtUtils]: Spent 11.19s on a formula simplification. DAG size of input: 357 DAG size of output: 1 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-15 21:32:36,451 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-15 21:32:36,451 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-15 21:32:36,451 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-15 21:32:36,451 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-15 21:32:36,451 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|))) (and (= |~#signed_char_Array_0~0.offset| 0) (<= 1 (mod (select .cse0 3) 256)) (<= (mod (select .cse0 0) 256) 0) (= |~#BOOL_unsigned_char_Array_0~0.offset| 0))) [2023-12-15 21:32:36,451 INFO L899 garLoopResultBuilder]: For program point L85-1(line 85) no Hoare annotation was computed. [2023-12-15 21:32:36,451 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-15 21:32:36,451 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-15 21:32:36,451 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-15 21:32:36,451 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|))) (and (= |~#signed_char_Array_0~0.offset| 0) (<= 1 (mod (select .cse0 3) 256)) (<= (mod (select .cse0 0) 256) 0) (= |~#BOOL_unsigned_char_Array_0~0.offset| 0))) [2023-12-15 21:32:36,452 INFO L899 garLoopResultBuilder]: For program point L86-1(line 86) no Hoare annotation was computed. [2023-12-15 21:32:36,452 INFO L895 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: (let ((.cse18 (select |#memory_int#5| |~#unsigned_short_int_Array_0~0.base|))) (let ((.cse16 (select .cse18 |~#unsigned_short_int_Array_0~0.offset|))) (let ((.cse6 (select |#memory_int#2| |~#signed_char_Array_0~0.base|)) (.cse15 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|)) (.cse11 (mod .cse16 65536)) (.cse17 (mod (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse12 (div .cse11 .cse17)) (.cse8 (mod (select .cse15 4) 256)) (.cse5 (select .cse6 2))) (let ((.cse7 (= (select .cse18 (+ 2 |~#unsigned_short_int_Array_0~0.offset|)) .cse17)) (.cse0 (= |~#signed_char_Array_0~0.offset| 0)) (.cse10 (= (select (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|) |~#signed_long_int_Array_0~0.offset|) .cse5)) (.cse1 (= .cse8 0)) (.cse2 (not (= .cse17 0))) (.cse13 (<= 1 (mod (select .cse15 3) 256))) (.cse3 (<= (+ .cse12 1) .cse11)) (.cse4 (= |~#BOOL_unsigned_char_Array_0~0.offset| 0)) (.cse14 (= (select .cse6 1) .cse16))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= (+ .cse5 4) (select .cse6 0))) (let ((.cse9 (= (mod (select .cse15 2) 256) 0))) (and .cse7 (or (= .cse8 1) .cse9) .cse0 .cse10 (<= .cse11 .cse12) .cse2 .cse13 (or .cse1 (not .cse9)) .cse4 .cse14)) (and .cse7 .cse0 .cse10 .cse1 .cse2 .cse13 .cse3 .cse4 .cse14))))))) [2023-12-15 21:32:36,452 INFO L899 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2023-12-15 21:32:36,452 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|))) (and (= |~#signed_char_Array_0~0.offset| 0) (<= 1 (mod (select .cse0 3) 256)) (<= (mod (select .cse0 0) 256) 0) (= |~#BOOL_unsigned_char_Array_0~0.offset| 0) (= |ULTIMATE.start_updateVariables_#t~mem55#1| (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|)))) [2023-12-15 21:32:36,452 INFO L899 garLoopResultBuilder]: For program point L87-1(line 87) no Hoare annotation was computed. [2023-12-15 21:32:36,452 INFO L899 garLoopResultBuilder]: For program point L54(lines 54 66) no Hoare annotation was computed. [2023-12-15 21:32:36,452 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (let ((.cse19 (select |#memory_int#5| |~#unsigned_short_int_Array_0~0.base|))) (let ((.cse17 (select .cse19 |~#unsigned_short_int_Array_0~0.offset|))) (let ((.cse16 (select |#memory_int#2| |~#signed_char_Array_0~0.base|)) (.cse13 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|)) (.cse5 (mod .cse17 65536)) (.cse18 (mod (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse6 (div .cse5 .cse18)) (.cse1 (mod (select .cse13 4) 256)) (.cse15 (select .cse16 2))) (let ((.cse0 (= (select .cse19 (+ 2 |~#unsigned_short_int_Array_0~0.offset|)) .cse18)) (.cse3 (= |~#signed_char_Array_0~0.offset| 0)) (.cse4 (= (select (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|) |~#signed_long_int_Array_0~0.offset|) .cse15)) (.cse9 (= .cse1 0)) (.cse7 (not (= .cse18 0))) (.cse8 (<= 1 (mod (select .cse13 3) 256))) (.cse14 (<= (+ .cse6 1) .cse5)) (.cse10 (= |ULTIMATE.start_updateVariables_#t~mem39#1| (select .cse13 0))) (.cse11 (= |~#BOOL_unsigned_char_Array_0~0.offset| 0)) (.cse12 (= (select .cse16 1) .cse17))) (or (let ((.cse2 (= (mod (select .cse13 2) 256) 0))) (and .cse0 (or (= .cse1 1) .cse2) .cse3 .cse4 (<= .cse5 .cse6) .cse7 .cse8 (or .cse9 (not .cse2)) .cse10 .cse11 .cse12)) (and .cse3 .cse9 .cse7 .cse14 .cse10 .cse11 (<= (+ .cse15 4) (select .cse16 0))) (and .cse0 .cse3 .cse4 .cse9 .cse7 .cse8 .cse14 .cse10 .cse11 .cse12))))))) [2023-12-15 21:32:36,452 INFO L899 garLoopResultBuilder]: For program point L71-1(line 71) no Hoare annotation was computed. [2023-12-15 21:32:36,452 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-12-15 21:32:36,452 INFO L899 garLoopResultBuilder]: For program point L55-2(lines 55 65) no Hoare annotation was computed. [2023-12-15 21:32:36,452 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 64) no Hoare annotation was computed. [2023-12-15 21:32:36,452 INFO L895 garLoopResultBuilder]: At program point L73(line 73) the Hoare annotation is: (let ((.cse16 (select |#memory_int#5| |~#unsigned_short_int_Array_0~0.base|))) (let ((.cse13 (select .cse16 |~#unsigned_short_int_Array_0~0.offset|)) (.cse8 (select |#memory_int#2| |~#signed_char_Array_0~0.base|))) (let ((.cse14 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|)) (.cse7 (select .cse8 2)) (.cse4 (mod .cse13 65536)) (.cse15 (mod (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse3 (div .cse4 .cse15)) (.cse9 (= (select .cse16 (+ 2 |~#unsigned_short_int_Array_0~0.offset|)) .cse15)) (.cse0 (= |~#signed_char_Array_0~0.offset| 0)) (.cse10 (= (select (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|) |~#signed_long_int_Array_0~0.offset|) .cse7)) (.cse1 (= (mod (select .cse14 4) 256) 0)) (.cse2 (not (= .cse15 0))) (.cse11 (<= 1 (mod (select .cse14 3) 256))) (.cse5 (<= (mod (select .cse14 0) 256) 0)) (.cse6 (= |~#BOOL_unsigned_char_Array_0~0.offset| 0)) (.cse12 (= (select .cse8 1) .cse13))) (or (and .cse0 .cse1 .cse2 (<= (+ .cse3 1) .cse4) .cse5 .cse6 (<= (+ .cse7 4) (select .cse8 0))) (and .cse9 .cse0 .cse10 (<= .cse4 .cse3) .cse2 .cse11 .cse5 .cse6 .cse12) (and .cse9 .cse0 .cse10 .cse1 .cse2 .cse11 .cse5 .cse6 .cse12)))))) [2023-12-15 21:32:36,452 INFO L899 garLoopResultBuilder]: For program point L73-1(line 73) no Hoare annotation was computed. [2023-12-15 21:32:36,452 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-12-15 21:32:36,452 INFO L899 garLoopResultBuilder]: For program point L57-2(line 57) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L57-4(line 57) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L57-6(lines 57 61) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (let ((.cse16 (select |#memory_int#5| |~#unsigned_short_int_Array_0~0.base|))) (let ((.cse13 (select .cse16 |~#unsigned_short_int_Array_0~0.offset|)) (.cse8 (select |#memory_int#2| |~#signed_char_Array_0~0.base|))) (let ((.cse14 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|)) (.cse7 (select .cse8 2)) (.cse4 (mod .cse13 65536)) (.cse15 (mod (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse3 (div .cse4 .cse15)) (.cse9 (= (select .cse16 (+ 2 |~#unsigned_short_int_Array_0~0.offset|)) .cse15)) (.cse0 (= |~#signed_char_Array_0~0.offset| 0)) (.cse10 (= (select (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|) |~#signed_long_int_Array_0~0.offset|) .cse7)) (.cse1 (= (mod (select .cse14 4) 256) 0)) (.cse2 (not (= .cse15 0))) (.cse11 (<= 1 (mod (select .cse14 3) 256))) (.cse5 (<= (mod (select .cse14 0) 256) 0)) (.cse6 (= |~#BOOL_unsigned_char_Array_0~0.offset| 0)) (.cse12 (= (select .cse8 1) .cse13))) (or (and .cse0 .cse1 .cse2 (<= (+ .cse3 1) .cse4) .cse5 .cse6 (<= (+ .cse7 4) (select .cse8 0))) (and .cse9 .cse0 .cse10 (<= .cse4 .cse3) .cse2 .cse11 .cse5 .cse6 .cse12) (and .cse9 .cse0 .cse10 .cse1 .cse2 .cse11 .cse5 .cse6 .cse12)))))) [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L74-1(line 74) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 67) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse16 (select |#memory_int#5| |~#unsigned_short_int_Array_0~0.base|))) (let ((.cse13 (select .cse16 |~#unsigned_short_int_Array_0~0.offset|)) (.cse9 (select |#memory_int#2| |~#signed_char_Array_0~0.base|))) (let ((.cse8 (select .cse9 2)) (.cse14 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|)) (.cse5 (mod .cse13 65536)) (.cse15 (mod (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse4 (div .cse5 .cse15)) (.cse0 (= |ULTIMATE.start_updateVariables_#t~mem44#1| (select .cse14 3))) (.cse10 (= (select .cse16 (+ 2 |~#unsigned_short_int_Array_0~0.offset|)) .cse15)) (.cse1 (= |~#signed_char_Array_0~0.offset| 0)) (.cse11 (= (select (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|) |~#signed_long_int_Array_0~0.offset|) .cse8)) (.cse2 (= (mod (select .cse14 4) 256) 0)) (.cse3 (not (= .cse15 0))) (.cse6 (<= (mod (select .cse14 0) 256) 0)) (.cse7 (= |~#BOOL_unsigned_char_Array_0~0.offset| 0)) (.cse12 (= (select .cse9 1) .cse13))) (or (and .cse0 .cse1 .cse2 .cse3 (<= (+ .cse4 1) .cse5) .cse6 .cse7 (<= (+ .cse8 4) (select .cse9 0))) (and .cse0 .cse10 .cse1 .cse11 (<= .cse5 .cse4) .cse3 .cse6 .cse7 .cse12) (and .cse0 .cse10 .cse1 .cse11 .cse2 .cse3 .cse6 .cse7 .cse12)))))) [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L76-1(line 76) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 45) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 43 45) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L60-2(line 60) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse2 (select |#memory_int#2| |~#signed_char_Array_0~0.base|))) (let ((.cse0 (= |~#signed_char_Array_0~0.offset| 0)) (.cse1 (select .cse2 2)) (.cse3 (let ((.cse11 (select |#memory_int#5| |~#unsigned_short_int_Array_0~0.base|))) (let ((.cse4 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|)) (.cse8 (mod (select .cse11 |~#unsigned_short_int_Array_0~0.offset|) 65536)) (.cse12 (mod (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse7 (div .cse8 .cse12)) (.cse5 (not (= .cse12 0))) (.cse6 (<= 1 (mod (select .cse4 3) 256))) (.cse9 (<= (mod (select .cse4 0) 256) 0)) (.cse10 (= |~#BOOL_unsigned_char_Array_0~0.offset| 0))) (or (and (= (mod (select .cse4 4) 256) 0) .cse5 .cse6 (<= (+ .cse7 1) .cse8) .cse9 .cse10) (and (= (select .cse11 (+ 2 |~#unsigned_short_int_Array_0~0.offset|)) .cse12) (<= .cse8 .cse7) .cse5 .cse6 .cse9 .cse10))))))) (or (and .cse0 (<= (+ .cse1 4) (select .cse2 0)) .cse3) (and .cse0 (= (select (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|) |~#signed_long_int_Array_0~0.offset|) .cse1) .cse3)))) [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L44-2(line 44) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,453 INFO L899 garLoopResultBuilder]: For program point L94-3(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-5(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-7(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-8(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-9(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-10(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-11(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-13(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-15(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-17(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-18(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-19(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-20(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-22(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-23(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-24(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-26(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-28(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-30(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-32(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-34(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-35(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-37(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-39(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-41(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,454 INFO L899 garLoopResultBuilder]: For program point L94-43(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L94-44(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L94-46(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L895 garLoopResultBuilder]: At program point L79(line 79) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (let ((.cse7 (select |#memory_int#5| |~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|)) (.cse4 (mod (select .cse7 |~#unsigned_short_int_Array_0~0.offset|) 65536)) (.cse8 (mod (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse3 (div .cse4 .cse8)) (.cse1 (not (= .cse8 0))) (.cse2 (<= 1 (mod (select .cse0 3) 256))) (.cse5 (<= (mod (select .cse0 0) 256) 0)) (.cse6 (= |~#BOOL_unsigned_char_Array_0~0.offset| 0))) (or (and (= (mod (select .cse0 4) 256) 0) .cse1 .cse2 (<= (+ .cse3 1) .cse4) .cse5 .cse6) (and (= (select .cse7 (+ 2 |~#unsigned_short_int_Array_0~0.offset|)) .cse8) (<= .cse4 .cse3) .cse1 .cse2 .cse5 .cse6)))))) [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L94-47(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L79-1(line 79) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L94-49(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L94-50(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L94-52(line 94) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (let ((.cse7 (select |#memory_int#5| |~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|)) (.cse4 (mod (select .cse7 |~#unsigned_short_int_Array_0~0.offset|) 65536)) (.cse8 (mod (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse3 (div .cse4 .cse8)) (.cse1 (not (= .cse8 0))) (.cse2 (<= 1 (mod (select .cse0 3) 256))) (.cse5 (<= (mod (select .cse0 0) 256) 0)) (.cse6 (= |~#BOOL_unsigned_char_Array_0~0.offset| 0))) (or (and (= (mod (select .cse0 4) 256) 0) .cse1 .cse2 (<= (+ .cse3 1) .cse4) .cse5 .cse6) (and (= (select .cse7 (+ 2 |~#unsigned_short_int_Array_0~0.offset|)) .cse8) (<= .cse4 .cse3) .cse1 .cse2 .cse5 .cse6)))))) [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L80-1(line 80) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 51) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L47-2(lines 47 51) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L48-2(line 48) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-15 21:32:36,455 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (let ((.cse7 (select |#memory_int#5| |~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|)) (.cse4 (mod (select .cse7 |~#unsigned_short_int_Array_0~0.offset|) 65536)) (.cse8 (mod (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse3 (div .cse4 .cse8)) (.cse1 (not (= .cse8 0))) (.cse2 (<= 1 (mod (select .cse0 3) 256))) (.cse5 (<= (mod (select .cse0 0) 256) 0)) (.cse6 (= |~#BOOL_unsigned_char_Array_0~0.offset| 0))) (or (and (= (mod (select .cse0 4) 256) 0) .cse1 .cse2 (<= (+ .cse3 1) .cse4) .cse5 .cse6) (and (= (select .cse7 (+ 2 |~#unsigned_short_int_Array_0~0.offset|)) .cse8) (<= .cse4 .cse3) .cse1 .cse2 .cse5 .cse6)))))) [2023-12-15 21:32:36,455 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2023-12-15 21:32:36,456 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (let ((.cse7 (select |#memory_int#5| |~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|)) (.cse4 (mod (select .cse7 |~#unsigned_short_int_Array_0~0.offset|) 65536)) (.cse8 (mod (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse3 (div .cse4 .cse8)) (.cse1 (not (= .cse8 0))) (.cse2 (<= 1 (mod (select .cse0 3) 256))) (.cse5 (<= (mod (select .cse0 0) 256) 0)) (.cse6 (= |~#BOOL_unsigned_char_Array_0~0.offset| 0))) (or (and (= (mod (select .cse0 4) 256) 0) .cse1 .cse2 (<= (+ .cse3 1) .cse4) .cse5 .cse6) (and (= (select .cse7 (+ 2 |~#unsigned_short_int_Array_0~0.offset|)) .cse8) (<= .cse4 .cse3) .cse1 .cse2 .cse5 .cse6)))))) [2023-12-15 21:32:36,456 INFO L899 garLoopResultBuilder]: For program point L83-1(line 83) no Hoare annotation was computed. [2023-12-15 21:32:36,456 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-12-15 21:32:36,456 INFO L899 garLoopResultBuilder]: For program point L50-2(line 50) no Hoare annotation was computed. [2023-12-15 21:32:36,456 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 100 106) the Hoare annotation is: (let ((.cse19 (select |#memory_int#5| |~#unsigned_short_int_Array_0~0.base|))) (let ((.cse18 (select .cse19 |~#unsigned_short_int_Array_0~0.offset|))) (let ((.cse16 (select |#memory_int#2| |~#signed_char_Array_0~0.base|)) (.cse11 (mod .cse18 65536)) (.cse17 (mod (select (select |#memory_int#4| |~#unsigned_char_Array_0~0.base|) |~#unsigned_char_Array_0~0.offset|) 256))) (let ((.cse12 (div .cse11 .cse17)) (.cse2 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|)) (.cse15 (select .cse16 2))) (let ((.cse0 (= (select .cse19 (+ 2 |~#unsigned_short_int_Array_0~0.offset|)) .cse17)) (.cse3 (= (select (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|) |~#signed_long_int_Array_0~0.offset|) .cse15)) (.cse5 (<= 1 (mod (select .cse2 3) 256))) (.cse8 (= (select .cse16 1) .cse18)) (.cse13 (mod (select .cse2 0) 256)) (.cse14 (select .cse2 4)) (.cse1 (= |~#signed_char_Array_0~0.offset| 0)) (.cse4 (not (= .cse17 0))) (.cse6 (<= (+ .cse12 1) .cse11)) (.cse7 (= |~#BOOL_unsigned_char_Array_0~0.offset| 0))) (or (and .cse0 .cse1 (<= (mod (select .cse2 |~#BOOL_unsigned_char_Array_0~0.offset|) 256) 0) .cse3 .cse4 .cse5 .cse6 .cse7 (= 0 (select .cse2 (+ |~#BOOL_unsigned_char_Array_0~0.offset| 4))) .cse8) (let ((.cse9 (mod .cse14 256)) (.cse10 (= (mod (select .cse2 2) 256) 0))) (and .cse0 (or (= .cse9 1) .cse10) .cse1 .cse3 (<= .cse11 .cse12) .cse4 .cse5 (or (= .cse9 0) (not .cse10)) (<= .cse13 0) .cse7 .cse8)) (and (= .cse13 0) (= .cse14 0) .cse1 .cse4 .cse6 (<= (mod ~last_1_unsigned_short_int_Array_0_0_~0 65536) (mod ~last_1_unsigned_short_int_Array_0_1_~0 65536)) .cse7 (<= (+ .cse15 4) (select .cse16 0))))))))) [2023-12-15 21:32:36,456 INFO L899 garLoopResultBuilder]: For program point L100-3(lines 100 106) no Hoare annotation was computed. [2023-12-15 21:32:36,458 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:32:36,459 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:32:36,471 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][2 + ~#unsigned_short_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,472 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,474 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,474 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][~#signed_long_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,474 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][2] could not be translated [2023-12-15 21:32:36,474 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,474 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][3] could not be translated [2023-12-15 21:32:36,474 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,474 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,474 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,474 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset + 4] could not be translated [2023-12-15 21:32:36,475 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated [2023-12-15 21:32:36,475 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,475 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][2 + ~#unsigned_short_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,475 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,476 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][4] could not be translated [2023-12-15 21:32:36,476 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][2] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][~#signed_long_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][2] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][3] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][4] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][2] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][0] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,477 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][0] could not be translated [2023-12-15 21:32:36,478 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][4] could not be translated [2023-12-15 21:32:36,478 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,478 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,478 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,478 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated [2023-12-15 21:32:36,478 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][2] could not be translated [2023-12-15 21:32:36,479 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][0] could not be translated [2023-12-15 21:32:36,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:32:36 BoogieIcfgContainer [2023-12-15 21:32:36,479 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:32:36,479 INFO L158 Benchmark]: Toolchain (without parser) took 40612.97ms. Allocated memory was 314.6MB in the beginning and 571.5MB in the end (delta: 256.9MB). Free memory was 258.9MB in the beginning and 355.0MB in the end (delta: -96.1MB). Peak memory consumption was 319.5MB. Max. memory is 8.0GB. [2023-12-15 21:32:36,480 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 202.4MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:32:36,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.27ms. Allocated memory is still 314.6MB. Free memory was 258.9MB in the beginning and 244.8MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-15 21:32:36,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.14ms. Allocated memory is still 314.6MB. Free memory was 244.8MB in the beginning and 240.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 21:32:36,480 INFO L158 Benchmark]: Boogie Preprocessor took 86.92ms. Allocated memory is still 314.6MB. Free memory was 240.6MB in the beginning and 235.9MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 21:32:36,480 INFO L158 Benchmark]: RCFGBuilder took 538.83ms. Allocated memory is still 314.6MB. Free memory was 235.9MB in the beginning and 202.8MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-12-15 21:32:36,480 INFO L158 Benchmark]: TraceAbstraction took 39640.81ms. Allocated memory was 314.6MB in the beginning and 571.5MB in the end (delta: 256.9MB). Free memory was 201.8MB in the beginning and 355.0MB in the end (delta: -153.3MB). Peak memory consumption was 262.9MB. Max. memory is 8.0GB. [2023-12-15 21:32:36,481 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 202.4MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 263.27ms. Allocated memory is still 314.6MB. Free memory was 258.9MB in the beginning and 244.8MB in the end (delta: 14.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 78.14ms. Allocated memory is still 314.6MB. Free memory was 244.8MB in the beginning and 240.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 86.92ms. Allocated memory is still 314.6MB. Free memory was 240.6MB in the beginning and 235.9MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 538.83ms. Allocated memory is still 314.6MB. Free memory was 235.9MB in the beginning and 202.8MB in the end (delta: 33.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * TraceAbstraction took 39640.81ms. Allocated memory was 314.6MB in the beginning and 571.5MB in the end (delta: 256.9MB). Free memory was 201.8MB in the beginning and 355.0MB in the end (delta: -153.3MB). Peak memory consumption was 262.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][2 + ~#unsigned_short_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][~#signed_long_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset + 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][2 + ~#unsigned_short_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][~#signed_long_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][3] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_char_Array_0~0!base][~#unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#5[~#unsigned_short_int_Array_0~0!base][~#unsigned_short_int_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][0] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.6s, OverallIterations: 24, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 20.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3829 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3800 mSDsluCounter, 14991 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11447 mSDsCounter, 164 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4371 IncrementalHoareTripleChecker+Invalid, 4535 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 164 mSolverCounterUnsat, 3544 mSDtfsCounter, 4371 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3388 GetRequests, 3136 SyntacticMatches, 12 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=598occurred in iteration=23, InterpolantAutomatonStates: 214, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 24 MinimizatonAttempts, 1263 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 681 PreInvPairs, 747 NumberOfFragments, 2621 HoareAnnotationTreeSize, 681 FormulaSimplifications, 14906 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 15 FormulaSimplificationsInter, 51882 FormulaSimplificationTreeSizeReductionInter, 19.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2671 NumberOfCodeBlocks, 2671 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3285 ConstructedInterpolants, 0 QuantifiedInterpolants, 13399 SizeOfPredicates, 152 NumberOfNonLiveVariables, 8669 ConjunctsInSsa, 312 ConjunctsInUnsatCore, 31 InterpolantComputations, 21 PerfectInterpolantSequences, 9315/9672 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-15 21:32:36,544 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...