/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/combinations/Problem05_label46+token_ring.13.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:39:54,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:39:55,047 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 17:39:55,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:39:55,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:39:55,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:39:55,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:39:55,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:39:55,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:39:55,079 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:39:55,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:39:55,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:39:55,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:39:55,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:39:55,081 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:39:55,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:39:55,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:39:55,082 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:39:55,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:39:55,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:39:55,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:39:55,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:39:55,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:39:55,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:39:55,083 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:39:55,083 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:39:55,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:39:55,083 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:39:55,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:39:55,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:39:55,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:39:55,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:39:55,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:39:55,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:39:55,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:39:55,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:39:55,086 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:39:55,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:39:55,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:39:55,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:39:55,086 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:39:55,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:39:55,086 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:39:55,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:39:55,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:39:55,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:39:55,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:39:55,297 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:39:55,297 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:39:55,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.13.cil-2.c [2023-12-15 17:39:56,405 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:39:56,904 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:39:56,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.13.cil-2.c [2023-12-15 17:39:56,953 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/995cbca0d/4a364a1f524b49c489b21ba763c3c82d/FLAG5a2fe7a8d [2023-12-15 17:39:56,974 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/995cbca0d/4a364a1f524b49c489b21ba763c3c82d [2023-12-15 17:39:56,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:39:56,977 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:39:56,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:39:56,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:39:56,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:39:56,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:39:56" (1/1) ... [2023-12-15 17:39:56,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5285febb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:56, skipping insertion in model container [2023-12-15 17:39:56,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:39:56" (1/1) ... [2023-12-15 17:39:57,155 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:39:58,279 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.13.cil-2.c[382357,382370] [2023-12-15 17:39:58,295 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.13.cil-2.c[383339,383352] [2023-12-15 17:39:58,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:39:58,561 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:39:59,076 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.13.cil-2.c[382357,382370] [2023-12-15 17:39:59,079 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.13.cil-2.c[383339,383352] [2023-12-15 17:39:59,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:39:59,149 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:39:59,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59 WrapperNode [2023-12-15 17:39:59,149 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:39:59,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:39:59,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:39:59,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:39:59,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,491 INFO L138 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13293 [2023-12-15 17:39:59,491 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:39:59,492 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:39:59,492 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:39:59,492 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:39:59,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,626 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,688 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 17:39:59,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:39:59,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:39:59,951 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:39:59,951 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:39:59,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (1/1) ... [2023-12-15 17:39:59,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:39:59,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:39:59,988 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 17:40:00,003 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 17:40:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:40:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 17:40:00,027 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 17:40:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 17:40:00,027 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 17:40:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 17:40:00,027 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 17:40:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 17:40:00,027 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 17:40:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 17:40:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 17:40:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 17:40:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 17:40:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:40:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:40:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:40:00,135 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:40:00,137 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:40:06,171 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:40:06,235 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:40:06,235 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-15 17:40:06,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:40:06 BoogieIcfgContainer [2023-12-15 17:40:06,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:40:06,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:40:06,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:40:06,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:40:06,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:39:56" (1/3) ... [2023-12-15 17:40:06,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d331e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:40:06, skipping insertion in model container [2023-12-15 17:40:06,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:39:59" (2/3) ... [2023-12-15 17:40:06,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d331e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:40:06, skipping insertion in model container [2023-12-15 17:40:06,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:40:06" (3/3) ... [2023-12-15 17:40:06,241 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.13.cil-2.c [2023-12-15 17:40:06,253 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:40:06,253 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 17:40:06,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:40:06,313 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;@57ed3a91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:40:06,313 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 17:40:06,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 17:40:06,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:06,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:06,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:06,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:06,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:06,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1828825109, now seen corresponding path program 1 times [2023-12-15 17:40:06,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:06,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132727875] [2023-12-15 17:40:06,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:06,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:06,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:06,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:06,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:06,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:06,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:06,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:06,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132727875] [2023-12-15 17:40:06,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132727875] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:06,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:06,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:06,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531289357] [2023-12-15 17:40:06,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:06,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:06,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:06,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:06,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:06,874 INFO L87 Difference]: Start difference. First operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:09,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:09,786 INFO L93 Difference]: Finished difference Result 5170 states and 9654 transitions. [2023-12-15 17:40:09,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:40:09,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:09,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:09,806 INFO L225 Difference]: With dead ends: 5170 [2023-12-15 17:40:09,806 INFO L226 Difference]: Without dead ends: 2678 [2023-12-15 17:40:09,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-15 17:40:09,819 INFO L413 NwaCegarLoop]: 4276 mSDtfsCounter, 1247 mSDsluCounter, 20684 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 24960 SdHoareTripleChecker+Invalid, 2317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:09,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 24960 Invalid, 2317 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 2256 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-15 17:40:09,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2023-12-15 17:40:09,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2492. [2023-12-15 17:40:09,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2457 states have (on average 1.8347578347578348) internal successors, (4508), 2459 states have internal predecessors, (4508), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 17:40:09,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4562 transitions. [2023-12-15 17:40:09,926 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4562 transitions. Word has length 171 [2023-12-15 17:40:09,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:09,927 INFO L495 AbstractCegarLoop]: Abstraction has 2492 states and 4562 transitions. [2023-12-15 17:40:09,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:09,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4562 transitions. [2023-12-15 17:40:09,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:09,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:09,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:09,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:40:09,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:09,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:09,931 INFO L85 PathProgramCache]: Analyzing trace with hash 16739435, now seen corresponding path program 1 times [2023-12-15 17:40:09,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:09,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670728792] [2023-12-15 17:40:09,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:09,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:09,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:10,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:10,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:10,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:10,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:10,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:10,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:10,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670728792] [2023-12-15 17:40:10,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670728792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:10,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:10,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:40:10,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934259094] [2023-12-15 17:40:10,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:10,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:40:10,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:10,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:40:10,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:40:10,128 INFO L87 Difference]: Start difference. First operand 2492 states and 4562 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:11,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:11,750 INFO L93 Difference]: Finished difference Result 2990 states and 5392 transitions. [2023-12-15 17:40:11,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:40:11,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:11,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:11,759 INFO L225 Difference]: With dead ends: 2990 [2023-12-15 17:40:11,759 INFO L226 Difference]: Without dead ends: 2634 [2023-12-15 17:40:11,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 17:40:11,762 INFO L413 NwaCegarLoop]: 4272 mSDtfsCounter, 1036 mSDsluCounter, 12217 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 16489 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:11,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 16489 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 17:40:11,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2023-12-15 17:40:11,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2492. [2023-12-15 17:40:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2457 states have (on average 1.8343508343508343) internal successors, (4507), 2459 states have internal predecessors, (4507), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 17:40:11,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4561 transitions. [2023-12-15 17:40:11,806 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4561 transitions. Word has length 171 [2023-12-15 17:40:11,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:11,806 INFO L495 AbstractCegarLoop]: Abstraction has 2492 states and 4561 transitions. [2023-12-15 17:40:11,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4561 transitions. [2023-12-15 17:40:11,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:11,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:11,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:11,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:40:11,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:11,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:11,809 INFO L85 PathProgramCache]: Analyzing trace with hash 628008493, now seen corresponding path program 1 times [2023-12-15 17:40:11,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:11,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023412607] [2023-12-15 17:40:11,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:11,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:11,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:12,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:12,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:12,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:12,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:12,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:12,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023412607] [2023-12-15 17:40:12,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023412607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:12,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:12,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 17:40:12,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54897800] [2023-12-15 17:40:12,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:12,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:40:12,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:12,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:40:12,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:40:12,101 INFO L87 Difference]: Start difference. First operand 2492 states and 4561 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:14,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:14,921 INFO L93 Difference]: Finished difference Result 3501 states and 6249 transitions. [2023-12-15 17:40:14,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:40:14,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:14,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:14,933 INFO L225 Difference]: With dead ends: 3501 [2023-12-15 17:40:14,934 INFO L226 Difference]: Without dead ends: 3149 [2023-12-15 17:40:14,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:40:14,939 INFO L413 NwaCegarLoop]: 4238 mSDtfsCounter, 5542 mSDsluCounter, 12708 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 16946 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:14,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 16946 Invalid, 2578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 17:40:14,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2023-12-15 17:40:15,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 2866. [2023-12-15 17:40:15,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2802 states have (on average 1.8115631691648821) internal successors, (5076), 2805 states have internal predecessors, (5076), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2023-12-15 17:40:15,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 5177 transitions. [2023-12-15 17:40:15,014 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 5177 transitions. Word has length 171 [2023-12-15 17:40:15,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:15,014 INFO L495 AbstractCegarLoop]: Abstraction has 2866 states and 5177 transitions. [2023-12-15 17:40:15,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:15,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 5177 transitions. [2023-12-15 17:40:15,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:15,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:15,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:15,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:40:15,017 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:15,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:15,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1907357233, now seen corresponding path program 1 times [2023-12-15 17:40:15,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:15,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774713074] [2023-12-15 17:40:15,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:15,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:15,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:15,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:15,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774713074] [2023-12-15 17:40:15,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774713074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:15,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:15,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:15,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698924631] [2023-12-15 17:40:15,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:15,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:15,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:15,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:15,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:15,290 INFO L87 Difference]: Start difference. First operand 2866 states and 5177 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:19,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:19,709 INFO L93 Difference]: Finished difference Result 4412 states and 7765 transitions. [2023-12-15 17:40:19,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:19,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:19,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:19,722 INFO L225 Difference]: With dead ends: 4412 [2023-12-15 17:40:19,722 INFO L226 Difference]: Without dead ends: 3686 [2023-12-15 17:40:19,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:40:19,725 INFO L413 NwaCegarLoop]: 4449 mSDtfsCounter, 5591 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3997 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5611 SdHoareTripleChecker+Valid, 21912 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:19,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5611 Valid, 21912 Invalid, 4060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3997 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-15 17:40:19,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2023-12-15 17:40:19,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3211. [2023-12-15 17:40:19,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.7918537524053881) internal successors, (5587), 3122 states have internal predecessors, (5587), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:40:19,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5734 transitions. [2023-12-15 17:40:19,794 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5734 transitions. Word has length 171 [2023-12-15 17:40:19,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:19,795 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5734 transitions. [2023-12-15 17:40:19,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:19,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5734 transitions. [2023-12-15 17:40:19,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:19,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:19,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:19,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:40:19,797 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:19,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:19,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1642709743, now seen corresponding path program 1 times [2023-12-15 17:40:19,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:19,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545573903] [2023-12-15 17:40:19,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:19,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:19,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:19,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:20,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:20,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:20,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:20,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:20,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545573903] [2023-12-15 17:40:20,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545573903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:20,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:20,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:20,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925595662] [2023-12-15 17:40:20,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:20,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:20,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:20,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:20,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:20,050 INFO L87 Difference]: Start difference. First operand 3211 states and 5734 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:22,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:22,006 INFO L93 Difference]: Finished difference Result 4777 states and 8368 transitions. [2023-12-15 17:40:22,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:22,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:22,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:22,018 INFO L225 Difference]: With dead ends: 4777 [2023-12-15 17:40:22,018 INFO L226 Difference]: Without dead ends: 3706 [2023-12-15 17:40:22,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:40:22,026 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5278 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5299 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:22,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5299 Valid, 16750 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1847 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 17:40:22,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3706 states. [2023-12-15 17:40:22,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3706 to 3211. [2023-12-15 17:40:22,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.790891597177678) internal successors, (5584), 3122 states have internal predecessors, (5584), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:40:22,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5731 transitions. [2023-12-15 17:40:22,102 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5731 transitions. Word has length 171 [2023-12-15 17:40:22,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:22,102 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5731 transitions. [2023-12-15 17:40:22,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:22,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5731 transitions. [2023-12-15 17:40:22,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:22,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:22,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:22,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:40:22,105 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:22,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:22,105 INFO L85 PathProgramCache]: Analyzing trace with hash 319530797, now seen corresponding path program 1 times [2023-12-15 17:40:22,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:22,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107611531] [2023-12-15 17:40:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:22,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:22,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:22,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:22,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107611531] [2023-12-15 17:40:22,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107611531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:22,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:22,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:22,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706852878] [2023-12-15 17:40:22,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:22,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:22,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:22,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:22,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:22,326 INFO L87 Difference]: Start difference. First operand 3211 states and 5731 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:23,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:23,844 INFO L93 Difference]: Finished difference Result 4773 states and 8351 transitions. [2023-12-15 17:40:23,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:23,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:23,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:23,855 INFO L225 Difference]: With dead ends: 4773 [2023-12-15 17:40:23,855 INFO L226 Difference]: Without dead ends: 3702 [2023-12-15 17:40:23,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:40:23,861 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5276 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5297 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:23,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5297 Valid, 16750 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 17:40:23,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2023-12-15 17:40:23,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 3211. [2023-12-15 17:40:23,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.7899294419499678) internal successors, (5581), 3122 states have internal predecessors, (5581), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:40:23,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5728 transitions. [2023-12-15 17:40:23,946 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5728 transitions. Word has length 171 [2023-12-15 17:40:23,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:23,946 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5728 transitions. [2023-12-15 17:40:23,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:23,947 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5728 transitions. [2023-12-15 17:40:23,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:23,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:23,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:23,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:40:23,949 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:23,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:23,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2078457041, now seen corresponding path program 1 times [2023-12-15 17:40:23,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:23,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431458648] [2023-12-15 17:40:23,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:23,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:24,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:24,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:24,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:24,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:24,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:24,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:24,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431458648] [2023-12-15 17:40:24,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431458648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:24,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:24,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:24,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854427233] [2023-12-15 17:40:24,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:24,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:24,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:24,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:24,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:24,150 INFO L87 Difference]: Start difference. First operand 3211 states and 5728 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:25,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:25,862 INFO L93 Difference]: Finished difference Result 4769 states and 8334 transitions. [2023-12-15 17:40:25,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:25,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:25,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:25,879 INFO L225 Difference]: With dead ends: 4769 [2023-12-15 17:40:25,880 INFO L226 Difference]: Without dead ends: 3698 [2023-12-15 17:40:25,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:40:25,885 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5111 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 2082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:25,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5132 Valid, 20880 Invalid, 2082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 17:40:25,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2023-12-15 17:40:25,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3211. [2023-12-15 17:40:25,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.788967286722258) internal successors, (5578), 3122 states have internal predecessors, (5578), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:40:25,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5725 transitions. [2023-12-15 17:40:25,948 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5725 transitions. Word has length 171 [2023-12-15 17:40:25,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:25,948 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5725 transitions. [2023-12-15 17:40:25,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:25,949 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5725 transitions. [2023-12-15 17:40:25,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:25,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:25,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:25,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 17:40:25,950 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:25,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:25,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1740169491, now seen corresponding path program 1 times [2023-12-15 17:40:25,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:25,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689345642] [2023-12-15 17:40:25,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:25,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:26,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:26,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:26,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:26,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:26,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:26,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:26,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689345642] [2023-12-15 17:40:26,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689345642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:26,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:26,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:26,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553477345] [2023-12-15 17:40:26,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:26,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:26,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:26,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:26,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:26,171 INFO L87 Difference]: Start difference. First operand 3211 states and 5725 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:29,374 INFO L93 Difference]: Finished difference Result 5735 states and 9906 transitions. [2023-12-15 17:40:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:29,375 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:29,393 INFO L225 Difference]: With dead ends: 5735 [2023-12-15 17:40:29,393 INFO L226 Difference]: Without dead ends: 4664 [2023-12-15 17:40:29,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:40:29,398 INFO L413 NwaCegarLoop]: 4247 mSDtfsCounter, 5674 mSDsluCounter, 16920 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5694 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:29,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5694 Valid, 21167 Invalid, 3358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 17:40:29,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4664 states. [2023-12-15 17:40:29,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4664 to 3914. [2023-12-15 17:40:29,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3914 states, 3763 states have (on average 1.7573744352909912) internal successors, (6613), 3769 states have internal predecessors, (6613), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-15 17:40:29,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 6856 transitions. [2023-12-15 17:40:29,595 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 6856 transitions. Word has length 171 [2023-12-15 17:40:29,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:29,597 INFO L495 AbstractCegarLoop]: Abstraction has 3914 states and 6856 transitions. [2023-12-15 17:40:29,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:29,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 6856 transitions. [2023-12-15 17:40:29,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:29,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:29,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:29,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 17:40:29,599 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:29,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:29,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1313614993, now seen corresponding path program 1 times [2023-12-15 17:40:29,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:29,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529422530] [2023-12-15 17:40:29,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:29,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:29,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:29,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:29,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529422530] [2023-12-15 17:40:29,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529422530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:29,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:29,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:29,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206859516] [2023-12-15 17:40:29,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:29,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:29,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:29,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:29,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:29,817 INFO L87 Difference]: Start difference. First operand 3914 states and 6856 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:31,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:31,641 INFO L93 Difference]: Finished difference Result 6425 states and 11025 transitions. [2023-12-15 17:40:31,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:31,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:31,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:31,662 INFO L225 Difference]: With dead ends: 6425 [2023-12-15 17:40:31,662 INFO L226 Difference]: Without dead ends: 4651 [2023-12-15 17:40:31,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:40:31,667 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5110 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5131 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:31,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5131 Valid, 20880 Invalid, 2056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 17:40:31,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2023-12-15 17:40:31,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 3914. [2023-12-15 17:40:31,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3914 states, 3763 states have (on average 1.7560457082115333) internal successors, (6608), 3769 states have internal predecessors, (6608), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-15 17:40:31,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 6851 transitions. [2023-12-15 17:40:31,749 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 6851 transitions. Word has length 171 [2023-12-15 17:40:31,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:31,749 INFO L495 AbstractCegarLoop]: Abstraction has 3914 states and 6851 transitions. [2023-12-15 17:40:31,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:31,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 6851 transitions. [2023-12-15 17:40:31,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:31,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:31,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:31,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 17:40:31,751 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:31,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:31,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1854044499, now seen corresponding path program 1 times [2023-12-15 17:40:31,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:31,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254601311] [2023-12-15 17:40:31,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:31,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:31,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:31,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254601311] [2023-12-15 17:40:31,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254601311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:31,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:31,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:31,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253242888] [2023-12-15 17:40:31,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:31,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:31,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:31,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:31,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:31,950 INFO L87 Difference]: Start difference. First operand 3914 states and 6851 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:34,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:34,917 INFO L93 Difference]: Finished difference Result 8296 states and 14053 transitions. [2023-12-15 17:40:34,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:34,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:34,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:34,934 INFO L225 Difference]: With dead ends: 8296 [2023-12-15 17:40:34,934 INFO L226 Difference]: Without dead ends: 6522 [2023-12-15 17:40:34,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:40:34,939 INFO L413 NwaCegarLoop]: 4447 mSDtfsCounter, 5556 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3863 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5576 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:34,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5576 Valid, 21910 Invalid, 3928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3863 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 17:40:34,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2023-12-15 17:40:35,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 5320. [2023-12-15 17:40:35,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5053 states have (on average 1.7154165842074016) internal successors, (8668), 5063 states have internal predecessors, (8668), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2023-12-15 17:40:35,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 9109 transitions. [2023-12-15 17:40:35,069 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 9109 transitions. Word has length 171 [2023-12-15 17:40:35,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:35,069 INFO L495 AbstractCegarLoop]: Abstraction has 5320 states and 9109 transitions. [2023-12-15 17:40:35,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:35,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 9109 transitions. [2023-12-15 17:40:35,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:35,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:35,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:35,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 17:40:35,072 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:35,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:35,073 INFO L85 PathProgramCache]: Analyzing trace with hash -2010025041, now seen corresponding path program 1 times [2023-12-15 17:40:35,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:35,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495583649] [2023-12-15 17:40:35,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:35,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:35,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:35,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:35,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:35,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:35,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:35,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:35,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495583649] [2023-12-15 17:40:35,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495583649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:35,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:35,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:35,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468190659] [2023-12-15 17:40:35,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:35,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:35,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:35,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:35,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:35,275 INFO L87 Difference]: Start difference. First operand 5320 states and 9109 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:38,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:38,607 INFO L93 Difference]: Finished difference Result 13424 states and 22401 transitions. [2023-12-15 17:40:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:38,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:38,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:38,630 INFO L225 Difference]: With dead ends: 13424 [2023-12-15 17:40:38,630 INFO L226 Difference]: Without dead ends: 10244 [2023-12-15 17:40:38,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:40:38,643 INFO L413 NwaCegarLoop]: 4447 mSDtfsCounter, 5561 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5581 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:38,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5581 Valid, 21910 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-15 17:40:38,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10244 states. [2023-12-15 17:40:38,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10244 to 8137. [2023-12-15 17:40:38,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 7638 states have (on average 1.6750458235140089) internal successors, (12794), 7656 states have internal predecessors, (12794), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-15 17:40:39,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 13649 transitions. [2023-12-15 17:40:39,001 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 13649 transitions. Word has length 171 [2023-12-15 17:40:39,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:39,001 INFO L495 AbstractCegarLoop]: Abstraction has 8137 states and 13649 transitions. [2023-12-15 17:40:39,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:39,002 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 13649 transitions. [2023-12-15 17:40:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:39,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:39,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:39,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 17:40:39,006 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:39,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:39,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1599414675, now seen corresponding path program 1 times [2023-12-15 17:40:39,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:39,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990042546] [2023-12-15 17:40:39,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:39,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:39,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:39,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:39,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990042546] [2023-12-15 17:40:39,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990042546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:39,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:39,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:39,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675884931] [2023-12-15 17:40:39,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:39,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:39,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:39,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:39,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:39,188 INFO L87 Difference]: Start difference. First operand 8137 states and 13649 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:40,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:40,806 INFO L93 Difference]: Finished difference Result 16315 states and 27158 transitions. [2023-12-15 17:40:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:40,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:40,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:40,830 INFO L225 Difference]: With dead ends: 16315 [2023-12-15 17:40:40,831 INFO L226 Difference]: Without dead ends: 10318 [2023-12-15 17:40:40,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:40:40,847 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5277 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5298 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:40,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5298 Valid, 16750 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 17:40:40,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2023-12-15 17:40:41,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 8137. [2023-12-15 17:40:41,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 7638 states have (on average 1.6728201099764337) internal successors, (12777), 7656 states have internal predecessors, (12777), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-15 17:40:41,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 13632 transitions. [2023-12-15 17:40:41,079 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 13632 transitions. Word has length 171 [2023-12-15 17:40:41,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:41,080 INFO L495 AbstractCegarLoop]: Abstraction has 8137 states and 13632 transitions. [2023-12-15 17:40:41,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:41,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 13632 transitions. [2023-12-15 17:40:41,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:41,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:41,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:41,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 17:40:41,084 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:41,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:41,084 INFO L85 PathProgramCache]: Analyzing trace with hash 559669419, now seen corresponding path program 1 times [2023-12-15 17:40:41,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:41,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284190334] [2023-12-15 17:40:41,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:41,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:41,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:41,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:41,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:41,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:41,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:41,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284190334] [2023-12-15 17:40:41,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284190334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:41,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:41,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:41,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232751699] [2023-12-15 17:40:41,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:41,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:41,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:41,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:41,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:41,262 INFO L87 Difference]: Start difference. First operand 8137 states and 13632 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:43,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:43,058 INFO L93 Difference]: Finished difference Result 16297 states and 27071 transitions. [2023-12-15 17:40:43,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:40:43,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:43,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:43,097 INFO L225 Difference]: With dead ends: 16297 [2023-12-15 17:40:43,097 INFO L226 Difference]: Without dead ends: 10300 [2023-12-15 17:40:43,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:40:43,112 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5275 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5296 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:43,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5296 Valid, 16750 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 17:40:43,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10300 states. [2023-12-15 17:40:43,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10300 to 8137. [2023-12-15 17:40:43,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 7638 states have (on average 1.6705943964388583) internal successors, (12760), 7656 states have internal predecessors, (12760), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-15 17:40:43,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 13615 transitions. [2023-12-15 17:40:43,346 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 13615 transitions. Word has length 171 [2023-12-15 17:40:43,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:43,347 INFO L495 AbstractCegarLoop]: Abstraction has 8137 states and 13615 transitions. [2023-12-15 17:40:43,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:43,347 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 13615 transitions. [2023-12-15 17:40:43,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:43,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:43,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:43,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 17:40:43,353 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:43,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:43,353 INFO L85 PathProgramCache]: Analyzing trace with hash 629317293, now seen corresponding path program 1 times [2023-12-15 17:40:43,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:43,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785771200] [2023-12-15 17:40:43,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:43,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:43,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:43,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785771200] [2023-12-15 17:40:43,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785771200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:43,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:43,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:43,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957612242] [2023-12-15 17:40:43,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:43,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:43,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:43,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:43,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:43,585 INFO L87 Difference]: Start difference. First operand 8137 states and 13615 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:47,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:47,772 INFO L93 Difference]: Finished difference Result 23625 states and 38879 transitions. [2023-12-15 17:40:47,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:40:47,772 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:47,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:47,814 INFO L225 Difference]: With dead ends: 23625 [2023-12-15 17:40:47,814 INFO L226 Difference]: Without dead ends: 17628 [2023-12-15 17:40:47,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:40:47,831 INFO L413 NwaCegarLoop]: 4447 mSDtfsCounter, 5542 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:47,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 21910 Invalid, 3833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3768 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-15 17:40:47,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17628 states. [2023-12-15 17:40:48,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17628 to 13837. [2023-12-15 17:40:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13837 states, 12874 states have (on average 1.6367873232872456) internal successors, (21072), 12908 states have internal predecessors, (21072), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2023-12-15 17:40:48,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13837 states to 13837 states and 22809 transitions. [2023-12-15 17:40:48,267 INFO L78 Accepts]: Start accepts. Automaton has 13837 states and 22809 transitions. Word has length 171 [2023-12-15 17:40:48,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:48,268 INFO L495 AbstractCegarLoop]: Abstraction has 13837 states and 22809 transitions. [2023-12-15 17:40:48,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:48,268 INFO L276 IsEmpty]: Start isEmpty. Operand 13837 states and 22809 transitions. [2023-12-15 17:40:48,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:48,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:48,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:48,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 17:40:48,275 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:48,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:48,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1047205995, now seen corresponding path program 1 times [2023-12-15 17:40:48,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:48,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314683322] [2023-12-15 17:40:48,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:48,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:40:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:40:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:40:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:40:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:40:48,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:40:48,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314683322] [2023-12-15 17:40:48,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314683322] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:40:48,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:40:48,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:40:48,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306743736] [2023-12-15 17:40:48,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:40:48,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:40:48,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:40:48,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:40:48,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:40:48,479 INFO L87 Difference]: Start difference. First operand 13837 states and 22809 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:52,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:40:52,803 INFO L93 Difference]: Finished difference Result 49515 states and 81069 transitions. [2023-12-15 17:40:52,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:40:52,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-15 17:40:52,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:40:52,899 INFO L225 Difference]: With dead ends: 49515 [2023-12-15 17:40:52,900 INFO L226 Difference]: Without dead ends: 37818 [2023-12-15 17:40:52,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:40:52,938 INFO L413 NwaCegarLoop]: 4249 mSDtfsCounter, 6106 mSDsluCounter, 16918 mSDsCounter, 0 mSdLazyCounter, 3161 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6140 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:40:52,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6140 Valid, 21167 Invalid, 3267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [106 Valid, 3161 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-15 17:40:52,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37818 states. [2023-12-15 17:40:53,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37818 to 25198. [2023-12-15 17:40:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25198 states, 23339 states have (on average 1.6152362997557737) internal successors, (37698), 23405 states have internal predecessors, (37698), 1403 states have call successors, (1403), 390 states have call predecessors, (1403), 454 states have return successors, (2196), 1466 states have call predecessors, (2196), 1403 states have call successors, (2196) [2023-12-15 17:40:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25198 states to 25198 states and 41297 transitions. [2023-12-15 17:40:53,985 INFO L78 Accepts]: Start accepts. Automaton has 25198 states and 41297 transitions. Word has length 171 [2023-12-15 17:40:53,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:40:53,986 INFO L495 AbstractCegarLoop]: Abstraction has 25198 states and 41297 transitions. [2023-12-15 17:40:53,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:40:53,986 INFO L276 IsEmpty]: Start isEmpty. Operand 25198 states and 41297 transitions. [2023-12-15 17:40:53,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 17:40:53,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:40:53,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:53,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 17:40:53,998 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:40:53,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:40:53,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1848807699, now seen corresponding path program 1 times [2023-12-15 17:40:53,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:40:53,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326578555] [2023-12-15 17:40:53,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:40:53,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:40:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:40:54,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:40:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-15 17:40:54,102 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 17:40:54,141 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 17:40:54,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 17:40:54,142 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 172 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-28-1 term,while SimplifyDDA2 was simplifying 28 xjuncts wrt. a ATOM-1 context. [2023-12-15 17:40:54,145 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 17:40:54,150 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:40:54,152 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:40:54,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:40:54 BoogieIcfgContainer [2023-12-15 17:40:54,155 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:40:54,155 INFO L158 Benchmark]: Toolchain (without parser) took 57178.33ms. Allocated memory was 169.9MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 79.7MB in the beginning and 1.0GB in the end (delta: -956.9MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-15 17:40:54,156 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 169.9MB. Free memory was 117.9MB in the beginning and 117.8MB in the end (delta: 92.2kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:40:54,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2171.25ms. Allocated memory was 169.9MB in the beginning and 306.2MB in the end (delta: 136.3MB). Free memory was 79.7MB in the beginning and 146.6MB in the end (delta: -66.9MB). Peak memory consumption was 179.9MB. Max. memory is 8.0GB. [2023-12-15 17:40:54,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 340.74ms. Allocated memory was 306.2MB in the beginning and 497.0MB in the end (delta: 190.8MB). Free memory was 146.6MB in the beginning and 327.5MB in the end (delta: -180.9MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-15 17:40:54,157 INFO L158 Benchmark]: Boogie Preprocessor took 457.90ms. Allocated memory is still 497.0MB. Free memory was 327.5MB in the beginning and 323.8MB in the end (delta: 3.7MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. [2023-12-15 17:40:54,157 INFO L158 Benchmark]: RCFGBuilder took 6284.91ms. Allocated memory was 497.0MB in the beginning and 1.5GB in the end (delta: 976.2MB). Free memory was 323.8MB in the beginning and 1.0GB in the end (delta: -709.1MB). Peak memory consumption was 278.7MB. Max. memory is 8.0GB. [2023-12-15 17:40:54,157 INFO L158 Benchmark]: TraceAbstraction took 47917.38ms. Allocated memory was 1.5GB in the beginning and 2.3GB in the end (delta: 817.9MB). Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: -4.3MB). Peak memory consumption was 813.6MB. Max. memory is 8.0GB. [2023-12-15 17:40:54,161 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 169.9MB. Free memory was 117.9MB in the beginning and 117.8MB in the end (delta: 92.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2171.25ms. Allocated memory was 169.9MB in the beginning and 306.2MB in the end (delta: 136.3MB). Free memory was 79.7MB in the beginning and 146.6MB in the end (delta: -66.9MB). Peak memory consumption was 179.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 340.74ms. Allocated memory was 306.2MB in the beginning and 497.0MB in the end (delta: 190.8MB). Free memory was 146.6MB in the beginning and 327.5MB in the end (delta: -180.9MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 457.90ms. Allocated memory is still 497.0MB. Free memory was 327.5MB in the beginning and 323.8MB in the end (delta: 3.7MB). Peak memory consumption was 66.1MB. Max. memory is 8.0GB. * RCFGBuilder took 6284.91ms. Allocated memory was 497.0MB in the beginning and 1.5GB in the end (delta: 976.2MB). Free memory was 323.8MB in the beginning and 1.0GB in the end (delta: -709.1MB). Peak memory consumption was 278.7MB. Max. memory is 8.0GB. * TraceAbstraction took 47917.38ms. Allocated memory was 1.5GB in the beginning and 2.3GB in the end (delta: 817.9MB). Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: -4.3MB). Peak memory consumption was 813.6MB. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was analyzing trace of length 172 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-28-1 term,while SimplifyDDA2 was simplifying 28 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 11133]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11133). Cancelled while NwaCegarLoop was analyzing trace of length 172 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-28-1 term,while SimplifyDDA2 was simplifying 28 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2494 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 47.9s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 40.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73515 SdHoareTripleChecker+Valid, 28.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73182 mSDsluCounter, 297131 SdHoareTripleChecker+Invalid, 24.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 232709 mSDsCounter, 1208 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38930 IncrementalHoareTripleChecker+Invalid, 40138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1208 mSolverCounterUnsat, 64422 mSDtfsCounter, 38930 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25198occurred in iteration=15, InterpolantAutomatonStates: 153, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 28110 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2565 NumberOfCodeBlocks, 2565 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2550 ConstructedInterpolants, 0 QuantifiedInterpolants, 7484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown