/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_label43+token_ring.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:35:02,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:35:02,960 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 17:35:02,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:35:02,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:35:02,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:35:02,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:35:02,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:35:02,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:35:02,991 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:35:02,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:35:02,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:35:02,992 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:35:02,993 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:35:02,993 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:35:02,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:35:02,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:35:02,994 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:35:02,994 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:35:02,994 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:35:02,994 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:35:02,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:35:02,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:35:02,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:35:02,995 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:35:02,995 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:35:02,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:35:02,995 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:35:02,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:35:02,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:35:02,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:35:02,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:35:02,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:35:02,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:35:02,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:35:02,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:35:02,997 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:35:02,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:35:02,998 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:35:02,998 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:35:02,998 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:35:02,998 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:35:02,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:35:02,998 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:35:03,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:35:03,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:35:03,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:35:03,206 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:35:03,206 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:35:03,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c [2023-12-15 17:35:04,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:35:04,810 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:35:04,811 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c [2023-12-15 17:35:04,840 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/885f27add/f377e6d258b1416db38fe0396bb52545/FLAGc8ef82410 [2023-12-15 17:35:04,854 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/885f27add/f377e6d258b1416db38fe0396bb52545 [2023-12-15 17:35:04,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:35:04,857 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:35:04,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:35:04,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:35:04,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:35:04,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:35:04" (1/1) ... [2023-12-15 17:35:04,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c4e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:04, skipping insertion in model container [2023-12-15 17:35:04,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:35:04" (1/1) ... [2023-12-15 17:35:04,980 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:35:06,107 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_label43+token_ring.15.cil.c[381679,381692] [2023-12-15 17:35:06,128 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_label43+token_ring.15.cil.c[383339,383352] [2023-12-15 17:35:06,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:35:06,325 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:35:06,932 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_label43+token_ring.15.cil.c[381679,381692] [2023-12-15 17:35:06,936 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_label43+token_ring.15.cil.c[383339,383352] [2023-12-15 17:35:06,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:35:07,003 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:35:07,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07 WrapperNode [2023-12-15 17:35:07,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:35:07,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:35:07,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:35:07,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:35:07,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,256 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13297 [2023-12-15 17:35:07,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:35:07,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:35:07,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:35:07,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:35:07,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,492 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 17:35:07,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:35:07,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:35:07,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:35:07,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:35:07,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (1/1) ... [2023-12-15 17:35:07,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:35:07,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:35:07,845 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 17:35:07,855 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 17:35:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:35:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 17:35:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 17:35:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 17:35:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 17:35:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 17:35:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 17:35:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-15 17:35:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-15 17:35:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 17:35:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 17:35:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 17:35:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 17:35:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 17:35:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 17:35:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:35:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:35:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:35:07,977 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:35:07,978 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:35:13,497 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:35:13,579 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:35:13,579 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-15 17:35:13,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:35:13 BoogieIcfgContainer [2023-12-15 17:35:13,580 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:35:13,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:35:13,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:35:13,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:35:13,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:35:04" (1/3) ... [2023-12-15 17:35:13,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7350dd60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:35:13, skipping insertion in model container [2023-12-15 17:35:13,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:35:07" (2/3) ... [2023-12-15 17:35:13,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7350dd60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:35:13, skipping insertion in model container [2023-12-15 17:35:13,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:35:13" (3/3) ... [2023-12-15 17:35:13,587 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.15.cil.c [2023-12-15 17:35:13,599 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:35:13,599 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 17:35:13,661 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:35:13,666 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;@3c9d7e0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:35:13,666 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 17:35:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 2500 states, 2461 states have (on average 1.8748476229175133) internal successors, (4614), 2466 states have internal predecessors, (4614), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-15 17:35:13,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:13,689 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:13,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:13,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:13,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:13,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1330018896, now seen corresponding path program 1 times [2023-12-15 17:35:13,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:13,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391537307] [2023-12-15 17:35:13,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:13,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:13,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:14,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:14,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:14,109 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 17:35:14,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:14,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391537307] [2023-12-15 17:35:14,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391537307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:14,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:14,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:35:14,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571042784] [2023-12-15 17:35:14,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:14,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:35:14,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:14,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:35:14,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:35:14,141 INFO L87 Difference]: Start difference. First operand has 2500 states, 2461 states have (on average 1.8748476229175133) internal successors, (4614), 2466 states have internal predecessors, (4614), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:16,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:16,425 INFO L93 Difference]: Finished difference Result 5133 states and 9582 transitions. [2023-12-15 17:35:16,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:35:16,430 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:16,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:16,467 INFO L225 Difference]: With dead ends: 5133 [2023-12-15 17:35:16,468 INFO L226 Difference]: Without dead ends: 2635 [2023-12-15 17:35:16,495 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 17:35:16,498 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 1058 mSDsluCounter, 12236 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 16519 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:16,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 16519 Invalid, 1211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-15 17:35:16,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2023-12-15 17:35:16,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2495. [2023-12-15 17:35:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2458 states have (on average 1.8356387306753459) internal successors, (4512), 2461 states have internal predecessors, (4512), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 17:35:16,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 4568 transitions. [2023-12-15 17:35:16,622 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 4568 transitions. Word has length 172 [2023-12-15 17:35:16,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:16,622 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 4568 transitions. [2023-12-15 17:35:16,623 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:16,623 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 4568 transitions. [2023-12-15 17:35:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:16,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:16,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:16,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:35:16,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:16,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:16,634 INFO L85 PathProgramCache]: Analyzing trace with hash 831462094, now seen corresponding path program 1 times [2023-12-15 17:35:16,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:16,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127236918] [2023-12-15 17:35:16,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:16,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:16,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:16,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:16,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:16,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:16,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:16,894 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 17:35:16,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:16,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127236918] [2023-12-15 17:35:16,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127236918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:16,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:16,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:35:16,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271702064] [2023-12-15 17:35:16,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:16,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:35:16,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:16,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:35:16,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:35:16,905 INFO L87 Difference]: Start difference. First operand 2495 states and 4568 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:18,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:18,828 INFO L93 Difference]: Finished difference Result 2994 states and 5402 transitions. [2023-12-15 17:35:18,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:35:18,829 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:18,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:18,838 INFO L225 Difference]: With dead ends: 2994 [2023-12-15 17:35:18,838 INFO L226 Difference]: Without dead ends: 2635 [2023-12-15 17:35:18,840 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 17:35:18,841 INFO L413 NwaCegarLoop]: 4279 mSDtfsCounter, 1046 mSDsluCounter, 12227 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 16506 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:18,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 16506 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 17:35:18,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2023-12-15 17:35:18,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2495. [2023-12-15 17:35:18,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2458 states have (on average 1.8352318958502847) internal successors, (4511), 2461 states have internal predecessors, (4511), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 17:35:18,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 4567 transitions. [2023-12-15 17:35:18,944 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 4567 transitions. Word has length 172 [2023-12-15 17:35:18,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:18,952 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 4567 transitions. [2023-12-15 17:35:18,952 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:18,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 4567 transitions. [2023-12-15 17:35:18,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:18,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:18,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:18,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:35:18,956 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:18,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:18,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1694033588, now seen corresponding path program 1 times [2023-12-15 17:35:18,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:18,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528950489] [2023-12-15 17:35:18,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:18,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:19,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:19,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:19,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:19,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:19,441 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 17:35:19,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:19,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528950489] [2023-12-15 17:35:19,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528950489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:19,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:19,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 17:35:19,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203178649] [2023-12-15 17:35:19,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:19,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:35:19,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:19,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:35:19,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:35:19,460 INFO L87 Difference]: Start difference. First operand 2495 states and 4567 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:22,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:22,371 INFO L93 Difference]: Finished difference Result 3506 states and 6263 transitions. [2023-12-15 17:35:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:35:22,372 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:22,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:22,381 INFO L225 Difference]: With dead ends: 3506 [2023-12-15 17:35:22,381 INFO L226 Difference]: Without dead ends: 3151 [2023-12-15 17:35:22,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:35:22,383 INFO L413 NwaCegarLoop]: 4245 mSDtfsCounter, 5554 mSDsluCounter, 12730 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5574 SdHoareTripleChecker+Valid, 16975 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:22,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5574 Valid, 16975 Invalid, 2591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-15 17:35:22,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3151 states. [2023-12-15 17:35:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3151 to 2870. [2023-12-15 17:35:22,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2804 states have (on average 1.8131241084165477) internal successors, (5084), 2808 states have internal predecessors, (5084), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2023-12-15 17:35:22,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 5187 transitions. [2023-12-15 17:35:22,440 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 5187 transitions. Word has length 172 [2023-12-15 17:35:22,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:22,440 INFO L495 AbstractCegarLoop]: Abstraction has 2870 states and 5187 transitions. [2023-12-15 17:35:22,440 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:22,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 5187 transitions. [2023-12-15 17:35:22,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:22,442 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:22,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:22,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:35:22,443 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:22,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:22,443 INFO L85 PathProgramCache]: Analyzing trace with hash -688928312, now seen corresponding path program 1 times [2023-12-15 17:35:22,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:22,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840519918] [2023-12-15 17:35:22,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:22,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:22,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:22,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:22,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:22,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:22,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:22,716 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 17:35:22,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:22,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840519918] [2023-12-15 17:35:22,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840519918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:22,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:22,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:22,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969710167] [2023-12-15 17:35:22,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:22,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:22,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:22,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:22,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:22,720 INFO L87 Difference]: Start difference. First operand 2870 states and 5187 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:26,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:26,877 INFO L93 Difference]: Finished difference Result 4417 states and 7785 transitions. [2023-12-15 17:35:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:35:26,877 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:26,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:26,889 INFO L225 Difference]: With dead ends: 4417 [2023-12-15 17:35:26,889 INFO L226 Difference]: Without dead ends: 3687 [2023-12-15 17:35:26,892 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 17:35:26,893 INFO L413 NwaCegarLoop]: 4463 mSDtfsCounter, 5601 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 4012 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5621 SdHoareTripleChecker+Valid, 21973 SdHoareTripleChecker+Invalid, 4079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:26,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5621 Valid, 21973 Invalid, 4079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 4012 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-15 17:35:26,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2023-12-15 17:35:26,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3216. [2023-12-15 17:35:26,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.793976289650753) internal successors, (5599), 3126 states have internal predecessors, (5599), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:35:26,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5748 transitions. [2023-12-15 17:35:26,970 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5748 transitions. Word has length 172 [2023-12-15 17:35:26,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:26,971 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5748 transitions. [2023-12-15 17:35:26,971 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:26,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5748 transitions. [2023-12-15 17:35:26,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:26,973 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:26,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:26,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:35:26,973 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:26,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:26,974 INFO L85 PathProgramCache]: Analyzing trace with hash -303065910, now seen corresponding path program 1 times [2023-12-15 17:35:26,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:26,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222966076] [2023-12-15 17:35:26,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:26,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:27,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:27,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:27,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:27,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:27,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:27,215 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 17:35:27,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:27,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222966076] [2023-12-15 17:35:27,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222966076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:27,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:27,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:27,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72716749] [2023-12-15 17:35:27,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:27,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:27,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:27,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:27,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:27,216 INFO L87 Difference]: Start difference. First operand 3216 states and 5748 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:29,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:29,243 INFO L93 Difference]: Finished difference Result 4781 states and 8390 transitions. [2023-12-15 17:35:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:35:29,244 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:29,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:29,257 INFO L225 Difference]: With dead ends: 4781 [2023-12-15 17:35:29,257 INFO L226 Difference]: Without dead ends: 3705 [2023-12-15 17:35:29,261 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 17:35:29,262 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5289 mSDsluCounter, 12540 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5310 SdHoareTripleChecker+Valid, 16772 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:29,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5310 Valid, 16772 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 17:35:29,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2023-12-15 17:35:29,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3216. [2023-12-15 17:35:29,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.7930150592758731) internal successors, (5596), 3126 states have internal predecessors, (5596), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:35:29,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5745 transitions. [2023-12-15 17:35:29,355 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5745 transitions. Word has length 172 [2023-12-15 17:35:29,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:29,355 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5745 transitions. [2023-12-15 17:35:29,356 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:29,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5745 transitions. [2023-12-15 17:35:29,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:29,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:29,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:29,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:35:29,358 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:29,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:29,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1628059724, now seen corresponding path program 1 times [2023-12-15 17:35:29,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:29,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290568523] [2023-12-15 17:35:29,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:29,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:29,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:29,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:29,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:29,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:29,575 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 17:35:29,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:29,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290568523] [2023-12-15 17:35:29,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290568523] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:29,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:29,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:29,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280213193] [2023-12-15 17:35:29,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:29,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:29,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:29,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:29,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:29,577 INFO L87 Difference]: Start difference. First operand 3216 states and 5745 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:31,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:31,562 INFO L93 Difference]: Finished difference Result 4777 states and 8373 transitions. [2023-12-15 17:35:31,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:35:31,563 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:31,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:31,576 INFO L225 Difference]: With dead ends: 4777 [2023-12-15 17:35:31,576 INFO L226 Difference]: Without dead ends: 3701 [2023-12-15 17:35:31,580 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 17:35:31,581 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5123 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 2035 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:31,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 20907 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2035 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 17:35:31,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2023-12-15 17:35:31,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3216. [2023-12-15 17:35:31,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.7920538289009933) internal successors, (5593), 3126 states have internal predecessors, (5593), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:35:31,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5742 transitions. [2023-12-15 17:35:31,670 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5742 transitions. Word has length 172 [2023-12-15 17:35:31,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:31,671 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5742 transitions. [2023-12-15 17:35:31,672 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:31,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5742 transitions. [2023-12-15 17:35:31,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:31,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:31,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:31,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:35:31,674 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:31,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:31,674 INFO L85 PathProgramCache]: Analyzing trace with hash 304880778, now seen corresponding path program 1 times [2023-12-15 17:35:31,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:31,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165585785] [2023-12-15 17:35:31,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:31,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:31,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:31,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:31,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:31,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:31,917 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 17:35:31,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:31,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165585785] [2023-12-15 17:35:31,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165585785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:31,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:31,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:31,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436380251] [2023-12-15 17:35:31,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:31,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:31,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:31,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:31,919 INFO L87 Difference]: Start difference. First operand 3216 states and 5742 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:33,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:33,885 INFO L93 Difference]: Finished difference Result 4773 states and 8356 transitions. [2023-12-15 17:35:33,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:35:33,886 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:33,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:33,898 INFO L225 Difference]: With dead ends: 4773 [2023-12-15 17:35:33,898 INFO L226 Difference]: Without dead ends: 3697 [2023-12-15 17:35:33,902 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 17:35:33,903 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5121 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5142 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:33,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5142 Valid, 20907 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 17:35:33,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2023-12-15 17:35:34,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3216. [2023-12-15 17:35:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 3121 states have (on average 1.7910925985261135) internal successors, (5590), 3126 states have internal predecessors, (5590), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:35:34,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 5739 transitions. [2023-12-15 17:35:34,069 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 5739 transitions. Word has length 172 [2023-12-15 17:35:34,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:34,069 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 5739 transitions. [2023-12-15 17:35:34,069 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:34,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 5739 transitions. [2023-12-15 17:35:34,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:34,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:34,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:34,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 17:35:34,071 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:34,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:34,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2093107060, now seen corresponding path program 1 times [2023-12-15 17:35:34,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:34,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83579017] [2023-12-15 17:35:34,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:34,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:34,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:34,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:34,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:34,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:34,348 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 17:35:34,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:34,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83579017] [2023-12-15 17:35:34,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83579017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:34,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:34,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:34,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131127779] [2023-12-15 17:35:34,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:34,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:34,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:34,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:34,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:34,349 INFO L87 Difference]: Start difference. First operand 3216 states and 5739 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:36,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:36,957 INFO L93 Difference]: Finished difference Result 5739 states and 9934 transitions. [2023-12-15 17:35:36,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:35:36,957 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:36,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:36,969 INFO L225 Difference]: With dead ends: 5739 [2023-12-15 17:35:36,969 INFO L226 Difference]: Without dead ends: 4663 [2023-12-15 17:35:36,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:35:36,973 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 5686 mSDsluCounter, 16947 mSDsCounter, 0 mSdLazyCounter, 3263 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5706 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:36,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5706 Valid, 21201 Invalid, 3374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 3263 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 17:35:36,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4663 states. [2023-12-15 17:35:37,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4663 to 3921. [2023-12-15 17:35:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 3768 states have (on average 1.7603503184713376) internal successors, (6633), 3775 states have internal predecessors, (6633), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-15 17:35:37,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 6878 transitions. [2023-12-15 17:35:37,068 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 6878 transitions. Word has length 172 [2023-12-15 17:35:37,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:37,069 INFO L495 AbstractCegarLoop]: Abstraction has 3921 states and 6878 transitions. [2023-12-15 17:35:37,069 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:37,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 6878 transitions. [2023-12-15 17:35:37,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:37,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:37,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:37,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 17:35:37,072 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:37,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:37,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1754819510, now seen corresponding path program 1 times [2023-12-15 17:35:37,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:37,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292689809] [2023-12-15 17:35:37,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:37,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:37,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:37,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:37,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:37,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:37,272 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 17:35:37,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:37,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292689809] [2023-12-15 17:35:37,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292689809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:37,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:37,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:37,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965470775] [2023-12-15 17:35:37,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:37,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:37,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:37,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:37,274 INFO L87 Difference]: Start difference. First operand 3921 states and 6878 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:39,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:39,129 INFO L93 Difference]: Finished difference Result 6429 states and 11059 transitions. [2023-12-15 17:35:39,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:35:39,130 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:39,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:39,142 INFO L225 Difference]: With dead ends: 6429 [2023-12-15 17:35:39,142 INFO L226 Difference]: Without dead ends: 4648 [2023-12-15 17:35:39,148 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 17:35:39,148 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5120 mSDsluCounter, 16675 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5141 SdHoareTripleChecker+Valid, 20907 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:39,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5141 Valid, 20907 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 17:35:39,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4648 states. [2023-12-15 17:35:39,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4648 to 3921. [2023-12-15 17:35:39,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 3768 states have (on average 1.7590233545647558) internal successors, (6628), 3775 states have internal predecessors, (6628), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-15 17:35:39,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 6873 transitions. [2023-12-15 17:35:39,322 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 6873 transitions. Word has length 172 [2023-12-15 17:35:39,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:39,322 INFO L495 AbstractCegarLoop]: Abstraction has 3921 states and 6873 transitions. [2023-12-15 17:35:39,323 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:39,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 6873 transitions. [2023-12-15 17:35:39,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:39,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:39,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:39,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 17:35:39,325 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:39,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:39,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1328265012, now seen corresponding path program 1 times [2023-12-15 17:35:39,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:39,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073523699] [2023-12-15 17:35:39,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:39,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:39,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:39,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:39,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:39,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:39,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:39,539 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 17:35:39,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:39,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073523699] [2023-12-15 17:35:39,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073523699] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:39,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:39,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:39,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25246989] [2023-12-15 17:35:39,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:39,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:39,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:39,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:39,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:39,540 INFO L87 Difference]: Start difference. First operand 3921 states and 6873 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:43,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:43,132 INFO L93 Difference]: Finished difference Result 8298 states and 14097 transitions. [2023-12-15 17:35:43,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:35:43,133 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:43,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:43,150 INFO L225 Difference]: With dead ends: 8298 [2023-12-15 17:35:43,151 INFO L226 Difference]: Without dead ends: 6517 [2023-12-15 17:35:43,159 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 17:35:43,159 INFO L413 NwaCegarLoop]: 4461 mSDtfsCounter, 5566 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 3878 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5586 SdHoareTripleChecker+Valid, 21971 SdHoareTripleChecker+Invalid, 3947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:43,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5586 Valid, 21971 Invalid, 3947 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3878 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-15 17:35:43,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6517 states. [2023-12-15 17:35:43,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6517 to 5331. [2023-12-15 17:35:43,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5062 states have (on average 1.7194784670090872) internal successors, (8704), 5073 states have internal predecessors, (8704), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2023-12-15 17:35:43,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 9147 transitions. [2023-12-15 17:35:43,296 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 9147 transitions. Word has length 172 [2023-12-15 17:35:43,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:43,297 INFO L495 AbstractCegarLoop]: Abstraction has 5331 states and 9147 transitions. [2023-12-15 17:35:43,297 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:43,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 9147 transitions. [2023-12-15 17:35:43,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:43,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:43,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:43,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 17:35:43,300 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:43,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:43,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1868694518, now seen corresponding path program 1 times [2023-12-15 17:35:43,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:43,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671950640] [2023-12-15 17:35:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:43,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:43,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:43,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:43,508 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 17:35:43,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:43,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671950640] [2023-12-15 17:35:43,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671950640] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:43,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:43,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:43,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986072707] [2023-12-15 17:35:43,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:43,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:43,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:43,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:43,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:43,509 INFO L87 Difference]: Start difference. First operand 5331 states and 9147 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:47,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:47,439 INFO L93 Difference]: Finished difference Result 13422 states and 22477 transitions. [2023-12-15 17:35:47,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:35:47,440 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:47,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:47,463 INFO L225 Difference]: With dead ends: 13422 [2023-12-15 17:35:47,464 INFO L226 Difference]: Without dead ends: 10231 [2023-12-15 17:35:47,474 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 17:35:47,475 INFO L413 NwaCegarLoop]: 4461 mSDtfsCounter, 5571 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5591 SdHoareTripleChecker+Valid, 21971 SdHoareTripleChecker+Invalid, 3929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:47,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5591 Valid, 21971 Invalid, 3929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-15 17:35:47,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10231 states. [2023-12-15 17:35:47,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10231 to 8156. [2023-12-15 17:35:47,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8156 states, 7655 states have (on average 1.680209013716525) internal successors, (12862), 7674 states have internal predecessors, (12862), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-15 17:35:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13719 transitions. [2023-12-15 17:35:47,703 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13719 transitions. Word has length 172 [2023-12-15 17:35:47,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:47,703 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13719 transitions. [2023-12-15 17:35:47,703 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13719 transitions. [2023-12-15 17:35:47,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:47,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:47,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:47,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 17:35:47,707 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:47,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:47,708 INFO L85 PathProgramCache]: Analyzing trace with hash -2024675060, now seen corresponding path program 1 times [2023-12-15 17:35:47,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:47,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212331317] [2023-12-15 17:35:47,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:47,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:47,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:47,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:47,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:47,917 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 17:35:47,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:47,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212331317] [2023-12-15 17:35:47,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212331317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:47,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:47,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:47,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563661754] [2023-12-15 17:35:47,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:47,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:47,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:47,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:47,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:47,918 INFO L87 Difference]: Start difference. First operand 8156 states and 13719 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:49,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:49,639 INFO L93 Difference]: Finished difference Result 16319 states and 27264 transitions. [2023-12-15 17:35:49,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:35:49,639 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:49,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:49,664 INFO L225 Difference]: With dead ends: 16319 [2023-12-15 17:35:49,665 INFO L226 Difference]: Without dead ends: 10303 [2023-12-15 17:35:49,681 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 17:35:49,682 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5288 mSDsluCounter, 12540 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5309 SdHoareTripleChecker+Valid, 16772 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:49,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5309 Valid, 16772 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 17:35:49,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2023-12-15 17:35:50,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 8156. [2023-12-15 17:35:50,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8156 states, 7655 states have (on average 1.6779882429784454) internal successors, (12845), 7674 states have internal predecessors, (12845), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-15 17:35:50,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13702 transitions. [2023-12-15 17:35:50,031 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13702 transitions. Word has length 172 [2023-12-15 17:35:50,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:50,032 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13702 transitions. [2023-12-15 17:35:50,032 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:50,032 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13702 transitions. [2023-12-15 17:35:50,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:50,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:50,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:50,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 17:35:50,036 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:50,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:50,037 INFO L85 PathProgramCache]: Analyzing trace with hash 482422414, now seen corresponding path program 1 times [2023-12-15 17:35:50,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:50,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177457845] [2023-12-15 17:35:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:50,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:50,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:50,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:50,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:50,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:50,253 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 17:35:50,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:50,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177457845] [2023-12-15 17:35:50,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177457845] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:50,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:50,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:50,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135844518] [2023-12-15 17:35:50,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:50,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:50,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:50,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:50,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:50,255 INFO L87 Difference]: Start difference. First operand 8156 states and 13702 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:52,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:52,198 INFO L93 Difference]: Finished difference Result 16301 states and 27177 transitions. [2023-12-15 17:35:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:35:52,198 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:52,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:52,222 INFO L225 Difference]: With dead ends: 16301 [2023-12-15 17:35:52,222 INFO L226 Difference]: Without dead ends: 10285 [2023-12-15 17:35:52,238 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 17:35:52,239 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 5286 mSDsluCounter, 12540 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5307 SdHoareTripleChecker+Valid, 16772 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:52,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5307 Valid, 16772 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 17:35:52,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10285 states. [2023-12-15 17:35:52,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10285 to 8156. [2023-12-15 17:35:52,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8156 states, 7655 states have (on average 1.6757674722403657) internal successors, (12828), 7674 states have internal predecessors, (12828), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-15 17:35:52,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8156 states to 8156 states and 13685 transitions. [2023-12-15 17:35:52,472 INFO L78 Accepts]: Start accepts. Automaton has 8156 states and 13685 transitions. Word has length 172 [2023-12-15 17:35:52,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:52,473 INFO L495 AbstractCegarLoop]: Abstraction has 8156 states and 13685 transitions. [2023-12-15 17:35:52,473 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:52,473 INFO L276 IsEmpty]: Start isEmpty. Operand 8156 states and 13685 transitions. [2023-12-15 17:35:52,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:52,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:52,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:52,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 17:35:52,477 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:52,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1653460788, now seen corresponding path program 1 times [2023-12-15 17:35:52,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:52,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767227884] [2023-12-15 17:35:52,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:52,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:52,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:52,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:52,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:52,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:52,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:52,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:35:52,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:52,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767227884] [2023-12-15 17:35:52,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767227884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:52,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:52,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:52,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169422293] [2023-12-15 17:35:52,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:52,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:52,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:52,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:52,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:52,685 INFO L87 Difference]: Start difference. First operand 8156 states and 13685 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:56,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:35:56,524 INFO L93 Difference]: Finished difference Result 23615 states and 39019 transitions. [2023-12-15 17:35:56,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:35:56,524 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:35:56,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:35:56,570 INFO L225 Difference]: With dead ends: 23615 [2023-12-15 17:35:56,570 INFO L226 Difference]: Without dead ends: 17599 [2023-12-15 17:35:56,589 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 17:35:56,590 INFO L413 NwaCegarLoop]: 4461 mSDtfsCounter, 5552 mSDsluCounter, 17510 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5572 SdHoareTripleChecker+Valid, 21971 SdHoareTripleChecker+Invalid, 3852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:35:56,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5572 Valid, 21971 Invalid, 3852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-15 17:35:56,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17599 states. [2023-12-15 17:35:56,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17599 to 13872. [2023-12-15 17:35:57,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13872 states, 12907 states have (on average 1.642829472379329) internal successors, (21204), 12942 states have internal predecessors, (21204), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2023-12-15 17:35:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13872 states to 13872 states and 22943 transitions. [2023-12-15 17:35:57,039 INFO L78 Accepts]: Start accepts. Automaton has 13872 states and 22943 transitions. Word has length 172 [2023-12-15 17:35:57,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:35:57,039 INFO L495 AbstractCegarLoop]: Abstraction has 13872 states and 22943 transitions. [2023-12-15 17:35:57,039 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:35:57,039 INFO L276 IsEmpty]: Start isEmpty. Operand 13872 states and 22943 transitions. [2023-12-15 17:35:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:35:57,045 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:35:57,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:35:57,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 17:35:57,046 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:35:57,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:35:57,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1583812914, now seen corresponding path program 1 times [2023-12-15 17:35:57,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:35:57,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200193587] [2023-12-15 17:35:57,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:35:57,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:35:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:57,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:35:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:57,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:35:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:35:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:57,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:35:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:57,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:35:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:35:57,267 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 17:35:57,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:35:57,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200193587] [2023-12-15 17:35:57,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200193587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:35:57,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:35:57,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:35:57,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009314837] [2023-12-15 17:35:57,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:35:57,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:35:57,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:35:57,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:35:57,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:35:57,269 INFO L87 Difference]: Start difference. First operand 13872 states and 22943 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:36:01,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:36:01,520 INFO L93 Difference]: Finished difference Result 49361 states and 81209 transitions. [2023-12-15 17:36:01,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:36:01,521 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:36:01,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:36:01,640 INFO L225 Difference]: With dead ends: 49361 [2023-12-15 17:36:01,640 INFO L226 Difference]: Without dead ends: 37629 [2023-12-15 17:36:01,680 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 17:36:01,680 INFO L413 NwaCegarLoop]: 4256 mSDtfsCounter, 6118 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 3169 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6152 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 3283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 3169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:36:01,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6152 Valid, 21201 Invalid, 3283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 3169 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-15 17:36:01,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37629 states. [2023-12-15 17:36:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37629 to 25265. [2023-12-15 17:36:02,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25265 states, 23404 states have (on average 1.6218595111946676) internal successors, (37958), 23471 states have internal predecessors, (37958), 1405 states have call successors, (1405), 391 states have call predecessors, (1405), 454 states have return successors, (2196), 1466 states have call predecessors, (2196), 1403 states have call successors, (2196) [2023-12-15 17:36:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25265 states to 25265 states and 41559 transitions. [2023-12-15 17:36:02,941 INFO L78 Accepts]: Start accepts. Automaton has 25265 states and 41559 transitions. Word has length 172 [2023-12-15 17:36:02,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:36:02,941 INFO L495 AbstractCegarLoop]: Abstraction has 25265 states and 41559 transitions. [2023-12-15 17:36:02,942 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:36:02,942 INFO L276 IsEmpty]: Start isEmpty. Operand 25265 states and 41559 transitions. [2023-12-15 17:36:02,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:36:02,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:36:02,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:36:02,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 17:36:02,985 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:36:02,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:36:02,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1165924212, now seen corresponding path program 1 times [2023-12-15 17:36:02,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:36:02,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260405816] [2023-12-15 17:36:02,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:36:02,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:36:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:36:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:36:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:36:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:36:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:36:03,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:36:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:36:03,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:36:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:36:03,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:36:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:36:03,230 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 17:36:03,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:36:03,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260405816] [2023-12-15 17:36:03,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260405816] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:36:03,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:36:03,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:36:03,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702371745] [2023-12-15 17:36:03,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:36:03,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:36:03,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:36:03,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:36:03,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:36:03,233 INFO L87 Difference]: Start difference. First operand 25265 states and 41559 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-15 17:36:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 17:36:04,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-15 17:36:04,354 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 698 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:36:04,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1147 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 17:36:04,355 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 17:36:04,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 17:36:04,356 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (25265states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (1368 states constructed, input type IntersectNwa). [2023-12-15 17:36:04,357 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 17:36:04,360 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 17:36:04,361 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:36:04,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:36:04 BoogieIcfgContainer [2023-12-15 17:36:04,363 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:36:04,363 INFO L158 Benchmark]: Toolchain (without parser) took 59506.53ms. Allocated memory was 320.9MB in the beginning and 2.9GB in the end (delta: 2.6GB). Free memory was 278.2MB in the beginning and 1.9GB in the end (delta: -1.6GB). Peak memory consumption was 967.3MB. Max. memory is 8.0GB. [2023-12-15 17:36:04,363 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 226.5MB. Free memory is still 176.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:36:04,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2145.56ms. Allocated memory was 320.9MB in the beginning and 488.6MB in the end (delta: 167.8MB). Free memory was 277.9MB in the beginning and 373.6MB in the end (delta: -95.7MB). Peak memory consumption was 176.9MB. Max. memory is 8.0GB. [2023-12-15 17:36:04,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 250.89ms. Allocated memory is still 488.6MB. Free memory was 373.6MB in the beginning and 291.3MB in the end (delta: 82.3MB). Peak memory consumption was 81.8MB. Max. memory is 8.0GB. [2023-12-15 17:36:04,366 INFO L158 Benchmark]: Boogie Preprocessor took 519.95ms. Allocated memory is still 488.6MB. Free memory was 291.3MB in the beginning and 309.3MB in the end (delta: -18.0MB). Peak memory consumption was 79.2MB. Max. memory is 8.0GB. [2023-12-15 17:36:04,366 INFO L158 Benchmark]: RCFGBuilder took 5803.63ms. Allocated memory was 488.6MB in the beginning and 2.2GB in the end (delta: 1.7GB). Free memory was 309.3MB in the beginning and 1.9GB in the end (delta: -1.6GB). Peak memory consumption was 362.6MB. Max. memory is 8.0GB. [2023-12-15 17:36:04,367 INFO L158 Benchmark]: TraceAbstraction took 50780.36ms. Allocated memory was 2.2GB in the beginning and 2.9GB in the end (delta: 656.4MB). Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 64.4MB). Peak memory consumption was 720.9MB. Max. memory is 8.0GB. [2023-12-15 17:36:04,368 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2023-12-15 17:36:04,370 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 Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 226.5MB. Free memory is still 176.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2145.56ms. Allocated memory was 320.9MB in the beginning and 488.6MB in the end (delta: 167.8MB). Free memory was 277.9MB in the beginning and 373.6MB in the end (delta: -95.7MB). Peak memory consumption was 176.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 250.89ms. Allocated memory is still 488.6MB. Free memory was 373.6MB in the beginning and 291.3MB in the end (delta: 82.3MB). Peak memory consumption was 81.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 519.95ms. Allocated memory is still 488.6MB. Free memory was 291.3MB in the beginning and 309.3MB in the end (delta: -18.0MB). Peak memory consumption was 79.2MB. Max. memory is 8.0GB. * RCFGBuilder took 5803.63ms. Allocated memory was 488.6MB in the beginning and 2.2GB in the end (delta: 1.7GB). Free memory was 309.3MB in the beginning and 1.9GB in the end (delta: -1.6GB). Peak memory consumption was 362.6MB. Max. memory is 8.0GB. * TraceAbstraction took 50780.36ms. Allocated memory was 2.2GB in the beginning and 2.9GB in the end (delta: 656.4MB). Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 64.4MB). Peak memory consumption was 720.9MB. 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 constructing difference of abstraction (25265states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (1368 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 11118]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11118). Cancelled while NwaCegarLoop was constructing difference of abstraction (25265states) and FLOYD_HOARE automaton (currently 9 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (1368 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2500 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 50.7s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 42.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74007 SdHoareTripleChecker+Valid, 30.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73677 mSDsluCounter, 294472 SdHoareTripleChecker+Invalid, 26.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 229680 mSDsCounter, 1264 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39181 IncrementalHoareTripleChecker+Invalid, 40445 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1264 mSolverCounterUnsat, 64792 mSDtfsCounter, 39181 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 373 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25265occurred in iteration=15, InterpolantAutomatonStates: 149, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 27584 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 2752 NumberOfCodeBlocks, 2752 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2736 ConstructedInterpolants, 0 QuantifiedInterpolants, 8061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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