/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/systemc/transmitter.08.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 23:08:46,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 23:08:46,630 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 23:08:46,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 23:08:46,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 23:08:46,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 23:08:46,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 23:08:46,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 23:08:46,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 23:08:46,664 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 23:08:46,665 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 23:08:46,665 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 23:08:46,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 23:08:46,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 23:08:46,667 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 23:08:46,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 23:08:46,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 23:08:46,667 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 23:08:46,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 23:08:46,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 23:08:46,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 23:08:46,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 23:08:46,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 23:08:46,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 23:08:46,669 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 23:08:46,670 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 23:08:46,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 23:08:46,670 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 23:08:46,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 23:08:46,670 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 23:08:46,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 23:08:46,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 23:08:46,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:08:46,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 23:08:46,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 23:08:46,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 23:08:46,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 23:08:46,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 23:08:46,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 23:08:46,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 23:08:46,672 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 23:08:46,672 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 23:08:46,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 23:08:46,673 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 23:08:46,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 23:08:46,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 23:08:46,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 23:08:46,896 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 23:08:46,897 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 23:08:46,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.08.cil.c [2023-12-15 23:08:48,059 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 23:08:48,223 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 23:08:48,223 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.08.cil.c [2023-12-15 23:08:48,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52c8207df/c953801dfe274de1bd8afeabb183ea78/FLAGd7e9ad8e4 [2023-12-15 23:08:48,242 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52c8207df/c953801dfe274de1bd8afeabb183ea78 [2023-12-15 23:08:48,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 23:08:48,244 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 23:08:48,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 23:08:48,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 23:08:48,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 23:08:48,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363ea5cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48, skipping insertion in model container [2023-12-15 23:08:48,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,303 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 23:08:48,483 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.08.cil.c[706,719] [2023-12-15 23:08:48,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:08:48,644 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 23:08:48,653 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.08.cil.c[706,719] [2023-12-15 23:08:48,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 23:08:48,749 INFO L206 MainTranslator]: Completed translation [2023-12-15 23:08:48,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48 WrapperNode [2023-12-15 23:08:48,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 23:08:48,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 23:08:48,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 23:08:48,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 23:08:48,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,836 INFO L138 Inliner]: procedures = 44, calls = 54, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 623 [2023-12-15 23:08:48,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 23:08:48,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 23:08:48,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 23:08:48,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 23:08:48,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,856 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,890 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 23:08:48,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 23:08:48,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 23:08:48,931 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 23:08:48,931 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 23:08:48,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2023-12-15 23:08:48,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 23:08:48,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 23:08:49,006 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 23:08:49,054 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 23:08:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 23:08:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 23:08:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 23:08:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 23:08:49,071 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 23:08:49,071 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 23:08:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 23:08:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 23:08:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 23:08:49,073 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 23:08:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 23:08:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 23:08:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 23:08:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 23:08:49,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 23:08:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 23:08:49,179 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 23:08:49,180 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 23:08:49,738 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 23:08:49,775 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 23:08:49,776 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-12-15 23:08:49,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:49 BoogieIcfgContainer [2023-12-15 23:08:49,776 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 23:08:49,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 23:08:49,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 23:08:49,780 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 23:08:49,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:08:48" (1/3) ... [2023-12-15 23:08:49,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68689a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:49, skipping insertion in model container [2023-12-15 23:08:49,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (2/3) ... [2023-12-15 23:08:49,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68689a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:49, skipping insertion in model container [2023-12-15 23:08:49,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:49" (3/3) ... [2023-12-15 23:08:49,782 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.08.cil.c [2023-12-15 23:08:49,793 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 23:08:49,793 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 23:08:49,837 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 23:08:49,841 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;@4b9eaafc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 23:08:49,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 23:08:49,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 251 states, 222 states have (on average 1.7252252252252251) internal successors, (383), 224 states have internal predecessors, (383), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-15 23:08:49,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:08:49,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:08:49,859 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] [2023-12-15 23:08:49,860 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:08:49,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:08:49,864 INFO L85 PathProgramCache]: Analyzing trace with hash -178011246, now seen corresponding path program 1 times [2023-12-15 23:08:49,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:08:49,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767519909] [2023-12-15 23:08:49,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:08:49,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:08:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:50,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:08:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:50,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:08:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:50,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:08:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:50,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:08:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:08:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:50,341 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 23:08:50,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:08:50,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767519909] [2023-12-15 23:08:50,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767519909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:08:50,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:08:50,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 23:08:50,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056172184] [2023-12-15 23:08:50,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:08:50,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 23:08:50,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:08:50,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 23:08:50,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 23:08:50,370 INFO L87 Difference]: Start difference. First operand has 251 states, 222 states have (on average 1.7252252252252251) internal successors, (383), 224 states have internal predecessors, (383), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:51,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:08:51,460 INFO L93 Difference]: Finished difference Result 580 states and 988 transitions. [2023-12-15 23:08:51,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 23:08:51,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:08:51,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:08:51,470 INFO L225 Difference]: With dead ends: 580 [2023-12-15 23:08:51,471 INFO L226 Difference]: Without dead ends: 337 [2023-12-15 23:08:51,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 23:08:51,476 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 674 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:08:51,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 447 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:08:51,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-12-15 23:08:51,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 249. [2023-12-15 23:08:51,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 221 states have (on average 1.6063348416289593) internal successors, (355), 222 states have internal predecessors, (355), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-15 23:08:51,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 397 transitions. [2023-12-15 23:08:51,520 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 397 transitions. Word has length 125 [2023-12-15 23:08:51,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:08:51,520 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 397 transitions. [2023-12-15 23:08:51,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:51,521 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 397 transitions. [2023-12-15 23:08:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:08:51,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:08:51,523 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] [2023-12-15 23:08:51,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 23:08:51,524 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:08:51,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:08:51,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2115069780, now seen corresponding path program 1 times [2023-12-15 23:08:51,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:08:51,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688829752] [2023-12-15 23:08:51,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:08:51,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:08:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:08:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:08:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:51,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:08:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:51,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:08:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:51,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:08:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:51,711 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 23:08:51,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:08:51,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688829752] [2023-12-15 23:08:51,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688829752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:08:51,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:08:51,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:08:51,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071928766] [2023-12-15 23:08:51,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:08:51,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:08:51,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:08:51,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:08:51,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:08:51,714 INFO L87 Difference]: Start difference. First operand 249 states and 397 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:53,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:08:53,165 INFO L93 Difference]: Finished difference Result 905 states and 1486 transitions. [2023-12-15 23:08:53,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 23:08:53,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:08:53,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:08:53,172 INFO L225 Difference]: With dead ends: 905 [2023-12-15 23:08:53,172 INFO L226 Difference]: Without dead ends: 670 [2023-12-15 23:08:53,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:08:53,176 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1014 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 23:08:53,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 748 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 23:08:53,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2023-12-15 23:08:53,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 495. [2023-12-15 23:08:53,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 444 states have (on average 1.6126126126126126) internal successors, (716), 446 states have internal predecessors, (716), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2023-12-15 23:08:53,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 793 transitions. [2023-12-15 23:08:53,224 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 793 transitions. Word has length 125 [2023-12-15 23:08:53,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:08:53,225 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 793 transitions. [2023-12-15 23:08:53,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:53,225 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 793 transitions. [2023-12-15 23:08:53,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:08:53,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:08:53,230 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] [2023-12-15 23:08:53,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 23:08:53,231 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:08:53,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:08:53,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1592641033, now seen corresponding path program 1 times [2023-12-15 23:08:53,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:08:53,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073426488] [2023-12-15 23:08:53,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:08:53,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:08:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:53,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:08:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:53,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:08:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:53,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:08:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:08:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:08:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:53,398 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 23:08:53,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:08:53,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073426488] [2023-12-15 23:08:53,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073426488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:08:53,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:08:53,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:08:53,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67559] [2023-12-15 23:08:53,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:08:53,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:08:53,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:08:53,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:08:53,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:08:53,400 INFO L87 Difference]: Start difference. First operand 495 states and 793 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:55,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:08:55,830 INFO L93 Difference]: Finished difference Result 1601 states and 2604 transitions. [2023-12-15 23:08:55,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:08:55,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:08:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:08:55,834 INFO L225 Difference]: With dead ends: 1601 [2023-12-15 23:08:55,834 INFO L226 Difference]: Without dead ends: 1120 [2023-12-15 23:08:55,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:08:55,836 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1106 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 3195 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 3248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 3195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:08:55,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 1430 Invalid, 3248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 3195 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-15 23:08:55,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-12-15 23:08:55,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 723. [2023-12-15 23:08:55,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 649 states have (on average 1.6040061633281972) internal successors, (1041), 652 states have internal predecessors, (1041), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2023-12-15 23:08:55,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1152 transitions. [2023-12-15 23:08:55,861 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1152 transitions. Word has length 125 [2023-12-15 23:08:55,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:08:55,861 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 1152 transitions. [2023-12-15 23:08:55,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:55,862 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1152 transitions. [2023-12-15 23:08:55,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:08:55,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:08:55,863 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] [2023-12-15 23:08:55,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 23:08:55,863 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:08:55,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:08:55,863 INFO L85 PathProgramCache]: Analyzing trace with hash 729160885, now seen corresponding path program 1 times [2023-12-15 23:08:55,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:08:55,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372416288] [2023-12-15 23:08:55,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:08:55,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:08:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:55,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:08:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:55,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:08:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:56,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:08:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:56,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:08:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:56,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:08:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:56,024 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 23:08:56,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:08:56,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372416288] [2023-12-15 23:08:56,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372416288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:08:56,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:08:56,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:08:56,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144403945] [2023-12-15 23:08:56,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:08:56,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:08:56,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:08:56,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:08:56,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:08:56,025 INFO L87 Difference]: Start difference. First operand 723 states and 1152 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:58,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:08:58,661 INFO L93 Difference]: Finished difference Result 2467 states and 4001 transitions. [2023-12-15 23:08:58,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:08:58,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:08:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:08:58,670 INFO L225 Difference]: With dead ends: 2467 [2023-12-15 23:08:58,671 INFO L226 Difference]: Without dead ends: 1758 [2023-12-15 23:08:58,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:08:58,679 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1104 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 3191 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 3246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-15 23:08:58,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 1428 Invalid, 3246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3191 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-15 23:08:58,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2023-12-15 23:08:58,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1180. [2023-12-15 23:08:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1060 states have (on average 1.5962264150943397) internal successors, (1692), 1065 states have internal predecessors, (1692), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-15 23:08:58,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1875 transitions. [2023-12-15 23:08:58,741 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1875 transitions. Word has length 125 [2023-12-15 23:08:58,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:08:58,741 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1875 transitions. [2023-12-15 23:08:58,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:58,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1875 transitions. [2023-12-15 23:08:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:08:58,743 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:08:58,743 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] [2023-12-15 23:08:58,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 23:08:58,744 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:08:58,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:08:58,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1412699593, now seen corresponding path program 1 times [2023-12-15 23:08:58,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:08:58,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496819137] [2023-12-15 23:08:58,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:08:58,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:08:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:58,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:08:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:58,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:08:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:08:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:58,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:08:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:58,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:08:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:08:58,915 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 23:08:58,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:08:58,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496819137] [2023-12-15 23:08:58,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496819137] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:08:58,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:08:58,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:08:58,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288742607] [2023-12-15 23:08:58,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:08:58,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:08:58,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:08:58,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:08:58,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:08:58,921 INFO L87 Difference]: Start difference. First operand 1180 states and 1875 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:08:59,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:08:59,941 INFO L93 Difference]: Finished difference Result 2808 states and 4544 transitions. [2023-12-15 23:08:59,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:08:59,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:08:59,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:08:59,947 INFO L225 Difference]: With dead ends: 2808 [2023-12-15 23:08:59,948 INFO L226 Difference]: Without dead ends: 1642 [2023-12-15 23:08:59,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:08:59,950 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 801 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:08:59,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 721 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:08:59,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2023-12-15 23:09:00,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1180. [2023-12-15 23:09:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1060 states have (on average 1.5915094339622642) internal successors, (1687), 1065 states have internal predecessors, (1687), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-15 23:09:00,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1870 transitions. [2023-12-15 23:09:00,017 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1870 transitions. Word has length 125 [2023-12-15 23:09:00,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:00,017 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1870 transitions. [2023-12-15 23:09:00,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:00,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1870 transitions. [2023-12-15 23:09:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:00,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:00,019 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] [2023-12-15 23:09:00,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 23:09:00,019 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:00,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:00,019 INFO L85 PathProgramCache]: Analyzing trace with hash -2035981195, now seen corresponding path program 1 times [2023-12-15 23:09:00,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:00,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209055185] [2023-12-15 23:09:00,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:00,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:00,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:00,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:00,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:00,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:00,172 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 23:09:00,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:00,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209055185] [2023-12-15 23:09:00,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209055185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:00,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:00,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:09:00,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425048810] [2023-12-15 23:09:00,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:00,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:09:00,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:00,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:09:00,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:09:00,174 INFO L87 Difference]: Start difference. First operand 1180 states and 1870 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:01,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:01,078 INFO L93 Difference]: Finished difference Result 2802 states and 4518 transitions. [2023-12-15 23:09:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:09:01,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:01,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:01,084 INFO L225 Difference]: With dead ends: 2802 [2023-12-15 23:09:01,084 INFO L226 Difference]: Without dead ends: 1636 [2023-12-15 23:09:01,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:09:01,088 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 853 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:01,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 605 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 23:09:01,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2023-12-15 23:09:01,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1180. [2023-12-15 23:09:01,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1060 states have (on average 1.5867924528301887) internal successors, (1682), 1065 states have internal predecessors, (1682), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-15 23:09:01,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1865 transitions. [2023-12-15 23:09:01,129 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1865 transitions. Word has length 125 [2023-12-15 23:09:01,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:01,130 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1865 transitions. [2023-12-15 23:09:01,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:01,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1865 transitions. [2023-12-15 23:09:01,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:01,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:01,132 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] [2023-12-15 23:09:01,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 23:09:01,132 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:01,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:01,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1917539721, now seen corresponding path program 1 times [2023-12-15 23:09:01,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:01,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047976712] [2023-12-15 23:09:01,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:01,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:01,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:01,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:01,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:01,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:01,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:01,302 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 23:09:01,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:01,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047976712] [2023-12-15 23:09:01,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047976712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:01,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:01,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:09:01,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379476588] [2023-12-15 23:09:01,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:01,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:09:01,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:01,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:09:01,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:09:01,303 INFO L87 Difference]: Start difference. First operand 1180 states and 1865 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:02,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:02,319 INFO L93 Difference]: Finished difference Result 2795 states and 4490 transitions. [2023-12-15 23:09:02,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:09:02,319 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:02,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:02,325 INFO L225 Difference]: With dead ends: 2795 [2023-12-15 23:09:02,325 INFO L226 Difference]: Without dead ends: 1629 [2023-12-15 23:09:02,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:09:02,327 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 743 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:02,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 722 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:09:02,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2023-12-15 23:09:02,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1180. [2023-12-15 23:09:02,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1060 states have (on average 1.5820754716981131) internal successors, (1677), 1065 states have internal predecessors, (1677), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2023-12-15 23:09:02,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1860 transitions. [2023-12-15 23:09:02,363 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1860 transitions. Word has length 125 [2023-12-15 23:09:02,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:02,363 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1860 transitions. [2023-12-15 23:09:02,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:02,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1860 transitions. [2023-12-15 23:09:02,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:02,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:02,365 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] [2023-12-15 23:09:02,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 23:09:02,365 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:02,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:02,365 INFO L85 PathProgramCache]: Analyzing trace with hash -528245707, now seen corresponding path program 1 times [2023-12-15 23:09:02,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:02,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854526353] [2023-12-15 23:09:02,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:02,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:02,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:02,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:02,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:02,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:02,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:02,497 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 23:09:02,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:02,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854526353] [2023-12-15 23:09:02,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854526353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:02,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:02,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:09:02,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306770414] [2023-12-15 23:09:02,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:02,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:09:02,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:02,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:09:02,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:09:02,499 INFO L87 Difference]: Start difference. First operand 1180 states and 1860 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:05,040 INFO L93 Difference]: Finished difference Result 4107 states and 6560 transitions. [2023-12-15 23:09:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:09:05,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:05,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:05,050 INFO L225 Difference]: With dead ends: 4107 [2023-12-15 23:09:05,051 INFO L226 Difference]: Without dead ends: 2941 [2023-12-15 23:09:05,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:09:05,053 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1082 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 3160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:05,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 1428 Invalid, 3160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-15 23:09:05,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2023-12-15 23:09:05,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2107. [2023-12-15 23:09:05,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2107 states, 1895 states have (on average 1.5736147757255936) internal successors, (2982), 1904 states have internal predecessors, (2982), 149 states have call successors, (149), 54 states have call predecessors, (149), 62 states have return successors, (184), 156 states have call predecessors, (184), 149 states have call successors, (184) [2023-12-15 23:09:05,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 3315 transitions. [2023-12-15 23:09:05,125 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 3315 transitions. Word has length 125 [2023-12-15 23:09:05,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:05,125 INFO L495 AbstractCegarLoop]: Abstraction has 2107 states and 3315 transitions. [2023-12-15 23:09:05,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:05,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 3315 transitions. [2023-12-15 23:09:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:05,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:05,127 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] [2023-12-15 23:09:05,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 23:09:05,127 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:05,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:05,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1733327543, now seen corresponding path program 1 times [2023-12-15 23:09:05,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:05,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130092597] [2023-12-15 23:09:05,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:05,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:05,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:05,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:05,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:05,274 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 23:09:05,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:05,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130092597] [2023-12-15 23:09:05,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130092597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:05,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:05,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:09:05,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993272228] [2023-12-15 23:09:05,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:05,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:09:05,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:05,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:09:05,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:09:05,276 INFO L87 Difference]: Start difference. First operand 2107 states and 3315 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:07,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:07,745 INFO L93 Difference]: Finished difference Result 7420 states and 11833 transitions. [2023-12-15 23:09:07,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 23:09:07,745 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:07,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:07,763 INFO L225 Difference]: With dead ends: 7420 [2023-12-15 23:09:07,763 INFO L226 Difference]: Without dead ends: 5327 [2023-12-15 23:09:07,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-15 23:09:07,769 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1078 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 3077 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 3132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:07,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 1428 Invalid, 3132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3077 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-15 23:09:07,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5327 states. [2023-12-15 23:09:07,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5327 to 3970. [2023-12-15 23:09:07,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3970 states, 3574 states have (on average 1.5685506435366536) internal successors, (5606), 3591 states have internal predecessors, (5606), 277 states have call successors, (277), 102 states have call predecessors, (277), 118 states have return successors, (374), 292 states have call predecessors, (374), 277 states have call successors, (374) [2023-12-15 23:09:07,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3970 states to 3970 states and 6257 transitions. [2023-12-15 23:09:07,941 INFO L78 Accepts]: Start accepts. Automaton has 3970 states and 6257 transitions. Word has length 125 [2023-12-15 23:09:07,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:07,941 INFO L495 AbstractCegarLoop]: Abstraction has 3970 states and 6257 transitions. [2023-12-15 23:09:07,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:07,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3970 states and 6257 transitions. [2023-12-15 23:09:07,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:07,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:07,945 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] [2023-12-15 23:09:07,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 23:09:07,945 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:07,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:07,945 INFO L85 PathProgramCache]: Analyzing trace with hash 426185145, now seen corresponding path program 1 times [2023-12-15 23:09:07,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:07,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532997090] [2023-12-15 23:09:07,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:07,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:07,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:08,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:08,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:08,080 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 23:09:08,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:08,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532997090] [2023-12-15 23:09:08,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532997090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:08,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:08,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:09:08,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036617681] [2023-12-15 23:09:08,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:08,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:09:08,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:08,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:09:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:09:08,082 INFO L87 Difference]: Start difference. First operand 3970 states and 6257 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:10,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:10,436 INFO L93 Difference]: Finished difference Result 15563 states and 24863 transitions. [2023-12-15 23:09:10,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 23:09:10,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:10,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:10,477 INFO L225 Difference]: With dead ends: 15563 [2023-12-15 23:09:10,477 INFO L226 Difference]: Without dead ends: 11607 [2023-12-15 23:09:10,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-12-15 23:09:10,487 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1142 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 3137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:10,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 1405 Invalid, 3137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-15 23:09:10,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11607 states. [2023-12-15 23:09:10,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11607 to 7661. [2023-12-15 23:09:10,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7661 states, 6913 states have (on average 1.5680601764790973) internal successors, (10840), 6946 states have internal predecessors, (10840), 517 states have call successors, (517), 198 states have call predecessors, (517), 230 states have return successors, (792), 548 states have call predecessors, (792), 517 states have call successors, (792) [2023-12-15 23:09:10,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7661 states to 7661 states and 12149 transitions. [2023-12-15 23:09:10,815 INFO L78 Accepts]: Start accepts. Automaton has 7661 states and 12149 transitions. Word has length 125 [2023-12-15 23:09:10,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:10,815 INFO L495 AbstractCegarLoop]: Abstraction has 7661 states and 12149 transitions. [2023-12-15 23:09:10,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:10,816 INFO L276 IsEmpty]: Start isEmpty. Operand 7661 states and 12149 transitions. [2023-12-15 23:09:10,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:10,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:10,823 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] [2023-12-15 23:09:10,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 23:09:10,824 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:10,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:10,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1971285385, now seen corresponding path program 1 times [2023-12-15 23:09:10,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:10,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188111904] [2023-12-15 23:09:10,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:10,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:10,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:10,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:10,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:10,941 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 23:09:10,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:10,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188111904] [2023-12-15 23:09:10,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188111904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:10,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:10,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:09:10,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333315495] [2023-12-15 23:09:10,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:10,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:09:10,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:10,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:09:10,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:09:10,943 INFO L87 Difference]: Start difference. First operand 7661 states and 12149 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:12,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:12,081 INFO L93 Difference]: Finished difference Result 17678 states and 28470 transitions. [2023-12-15 23:09:12,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:09:12,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:12,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:12,120 INFO L225 Difference]: With dead ends: 17678 [2023-12-15 23:09:12,120 INFO L226 Difference]: Without dead ends: 10031 [2023-12-15 23:09:12,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:09:12,141 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 746 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:12,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 721 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:09:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10031 states. [2023-12-15 23:09:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10031 to 7661. [2023-12-15 23:09:12,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7661 states, 6913 states have (on average 1.5632865615507017) internal successors, (10807), 6946 states have internal predecessors, (10807), 517 states have call successors, (517), 198 states have call predecessors, (517), 230 states have return successors, (792), 548 states have call predecessors, (792), 517 states have call successors, (792) [2023-12-15 23:09:12,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7661 states to 7661 states and 12116 transitions. [2023-12-15 23:09:12,447 INFO L78 Accepts]: Start accepts. Automaton has 7661 states and 12116 transitions. Word has length 125 [2023-12-15 23:09:12,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:12,447 INFO L495 AbstractCegarLoop]: Abstraction has 7661 states and 12116 transitions. [2023-12-15 23:09:12,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:12,448 INFO L276 IsEmpty]: Start isEmpty. Operand 7661 states and 12116 transitions. [2023-12-15 23:09:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:12,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:12,457 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] [2023-12-15 23:09:12,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 23:09:12,457 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:12,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:12,458 INFO L85 PathProgramCache]: Analyzing trace with hash -940244487, now seen corresponding path program 1 times [2023-12-15 23:09:12,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:12,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690328680] [2023-12-15 23:09:12,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:12,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:12,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:12,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:12,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:12,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:12,579 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 23:09:12,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:12,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690328680] [2023-12-15 23:09:12,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690328680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:12,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:12,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:09:12,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616741940] [2023-12-15 23:09:12,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:12,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:09:12,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:12,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:09:12,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:09:12,580 INFO L87 Difference]: Start difference. First operand 7661 states and 12116 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:15,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:15,138 INFO L93 Difference]: Finished difference Result 29398 states and 47069 transitions. [2023-12-15 23:09:15,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 23:09:15,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:15,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:15,195 INFO L225 Difference]: With dead ends: 29398 [2023-12-15 23:09:15,196 INFO L226 Difference]: Without dead ends: 21751 [2023-12-15 23:09:15,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-12-15 23:09:15,219 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 1327 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 2317 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:15,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 930 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2317 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 23:09:15,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21751 states. [2023-12-15 23:09:15,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21751 to 15091. [2023-12-15 23:09:15,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15091 states, 13655 states have (on average 1.5615525448553644) internal successors, (21323), 13720 states have internal predecessors, (21323), 981 states have call successors, (981), 390 states have call predecessors, (981), 454 states have return successors, (1774), 1044 states have call predecessors, (1774), 981 states have call successors, (1774) [2023-12-15 23:09:15,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15091 states to 15091 states and 24078 transitions. [2023-12-15 23:09:15,809 INFO L78 Accepts]: Start accepts. Automaton has 15091 states and 24078 transitions. Word has length 125 [2023-12-15 23:09:15,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:15,809 INFO L495 AbstractCegarLoop]: Abstraction has 15091 states and 24078 transitions. [2023-12-15 23:09:15,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:15,810 INFO L276 IsEmpty]: Start isEmpty. Operand 15091 states and 24078 transitions. [2023-12-15 23:09:15,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:15,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:15,828 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] [2023-12-15 23:09:15,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 23:09:15,828 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:15,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:15,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1448319543, now seen corresponding path program 1 times [2023-12-15 23:09:15,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:15,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823180064] [2023-12-15 23:09:15,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:15,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:15,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:15,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:15,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:15,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:15,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:15,964 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 23:09:15,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:15,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823180064] [2023-12-15 23:09:15,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823180064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:15,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:15,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:09:15,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187341816] [2023-12-15 23:09:15,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:15,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:09:15,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:15,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:09:15,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:09:15,966 INFO L87 Difference]: Start difference. First operand 15091 states and 24078 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:19,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:19,193 INFO L93 Difference]: Finished difference Result 57090 states and 92197 transitions. [2023-12-15 23:09:19,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 23:09:19,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:19,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:19,287 INFO L225 Difference]: With dead ends: 57090 [2023-12-15 23:09:19,288 INFO L226 Difference]: Without dead ends: 42013 [2023-12-15 23:09:19,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-12-15 23:09:19,316 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1106 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 3029 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 3086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:19,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 1405 Invalid, 3086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3029 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-15 23:09:19,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42013 states. [2023-12-15 23:09:20,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42013 to 29948. [2023-12-15 23:09:20,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29948 states, 27168 states have (on average 1.5611381036513545) internal successors, (42413), 27297 states have internal predecessors, (42413), 1877 states have call successors, (1877), 774 states have call predecessors, (1877), 902 states have return successors, (4192), 2004 states have call predecessors, (4192), 1877 states have call successors, (4192) [2023-12-15 23:09:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29948 states to 29948 states and 48482 transitions. [2023-12-15 23:09:20,598 INFO L78 Accepts]: Start accepts. Automaton has 29948 states and 48482 transitions. Word has length 125 [2023-12-15 23:09:20,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:20,600 INFO L495 AbstractCegarLoop]: Abstraction has 29948 states and 48482 transitions. [2023-12-15 23:09:20,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:20,600 INFO L276 IsEmpty]: Start isEmpty. Operand 29948 states and 48482 transitions. [2023-12-15 23:09:20,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:20,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:20,632 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] [2023-12-15 23:09:20,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 23:09:20,632 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:20,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:20,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1245576647, now seen corresponding path program 1 times [2023-12-15 23:09:20,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:20,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804688491] [2023-12-15 23:09:20,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:20,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:20,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:20,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:20,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:20,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:20,755 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 23:09:20,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:20,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804688491] [2023-12-15 23:09:20,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804688491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:20,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:20,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:09:20,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17488015] [2023-12-15 23:09:20,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:20,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:09:20,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:20,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:09:20,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:09:20,757 INFO L87 Difference]: Start difference. First operand 29948 states and 48482 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:22,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:22,671 INFO L93 Difference]: Finished difference Result 68230 states and 112619 transitions. [2023-12-15 23:09:22,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:09:22,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:22,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:22,806 INFO L225 Difference]: With dead ends: 68230 [2023-12-15 23:09:22,806 INFO L226 Difference]: Without dead ends: 38296 [2023-12-15 23:09:22,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:09:22,878 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 746 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:22,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 721 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 23:09:22,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38296 states. [2023-12-15 23:09:24,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38296 to 29948. [2023-12-15 23:09:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29948 states, 27168 states have (on average 1.5563898704358068) internal successors, (42284), 27297 states have internal predecessors, (42284), 1877 states have call successors, (1877), 774 states have call predecessors, (1877), 902 states have return successors, (4192), 2004 states have call predecessors, (4192), 1877 states have call successors, (4192) [2023-12-15 23:09:24,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29948 states to 29948 states and 48353 transitions. [2023-12-15 23:09:24,305 INFO L78 Accepts]: Start accepts. Automaton has 29948 states and 48353 transitions. Word has length 125 [2023-12-15 23:09:24,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:24,307 INFO L495 AbstractCegarLoop]: Abstraction has 29948 states and 48353 transitions. [2023-12-15 23:09:24,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:24,307 INFO L276 IsEmpty]: Start isEmpty. Operand 29948 states and 48353 transitions. [2023-12-15 23:09:24,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:24,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:24,337 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] [2023-12-15 23:09:24,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 23:09:24,337 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:24,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:24,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1992659447, now seen corresponding path program 1 times [2023-12-15 23:09:24,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:24,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748834995] [2023-12-15 23:09:24,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:24,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:24,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:24,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:24,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:24,468 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 23:09:24,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:24,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748834995] [2023-12-15 23:09:24,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748834995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:24,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:24,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:09:24,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062542650] [2023-12-15 23:09:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:24,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:09:24,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:24,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:09:24,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:09:24,469 INFO L87 Difference]: Start difference. First operand 29948 states and 48353 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:28,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:28,837 INFO L93 Difference]: Finished difference Result 109847 states and 179523 transitions. [2023-12-15 23:09:28,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 23:09:28,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:28,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:29,113 INFO L225 Difference]: With dead ends: 109847 [2023-12-15 23:09:29,114 INFO L226 Difference]: Without dead ends: 79913 [2023-12-15 23:09:29,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-12-15 23:09:29,207 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1086 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 2986 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:29,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 1405 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2986 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-15 23:09:29,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79913 states. [2023-12-15 23:09:31,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79913 to 59790. [2023-12-15 23:09:31,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59790 states, 54386 states have (on average 1.5554002868385246) internal successors, (84592), 54643 states have internal predecessors, (84592), 3605 states have call successors, (3605), 1542 states have call predecessors, (3605), 1798 states have return successors, (10422), 3860 states have call predecessors, (10422), 3605 states have call successors, (10422) [2023-12-15 23:09:32,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59790 states to 59790 states and 98619 transitions. [2023-12-15 23:09:32,007 INFO L78 Accepts]: Start accepts. Automaton has 59790 states and 98619 transitions. Word has length 125 [2023-12-15 23:09:32,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:32,007 INFO L495 AbstractCegarLoop]: Abstraction has 59790 states and 98619 transitions. [2023-12-15 23:09:32,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:32,007 INFO L276 IsEmpty]: Start isEmpty. Operand 59790 states and 98619 transitions. [2023-12-15 23:09:32,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:32,056 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:32,056 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] [2023-12-15 23:09:32,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 23:09:32,057 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:32,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:32,057 INFO L85 PathProgramCache]: Analyzing trace with hash -950922631, now seen corresponding path program 1 times [2023-12-15 23:09:32,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:32,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869443467] [2023-12-15 23:09:32,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:32,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:32,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:32,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:32,171 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 23:09:32,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:32,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869443467] [2023-12-15 23:09:32,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869443467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:32,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:32,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 23:09:32,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508558264] [2023-12-15 23:09:32,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:32,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 23:09:32,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:32,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 23:09:32,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 23:09:32,174 INFO L87 Difference]: Start difference. First operand 59790 states and 98619 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:34,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:34,903 INFO L93 Difference]: Finished difference Result 134948 states and 227942 transitions. [2023-12-15 23:09:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 23:09:34,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:34,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:35,112 INFO L225 Difference]: With dead ends: 134948 [2023-12-15 23:09:35,112 INFO L226 Difference]: Without dead ends: 75172 [2023-12-15 23:09:35,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:09:35,195 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 854 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:35,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 604 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 23:09:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75172 states. [2023-12-15 23:09:37,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75172 to 59790. [2023-12-15 23:09:37,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59790 states, 54386 states have (on average 1.5506748060162543) internal successors, (84335), 54643 states have internal predecessors, (84335), 3605 states have call successors, (3605), 1542 states have call predecessors, (3605), 1798 states have return successors, (10422), 3860 states have call predecessors, (10422), 3605 states have call successors, (10422) [2023-12-15 23:09:37,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59790 states to 59790 states and 98362 transitions. [2023-12-15 23:09:37,893 INFO L78 Accepts]: Start accepts. Automaton has 59790 states and 98362 transitions. Word has length 125 [2023-12-15 23:09:37,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:37,893 INFO L495 AbstractCegarLoop]: Abstraction has 59790 states and 98362 transitions. [2023-12-15 23:09:37,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:37,894 INFO L276 IsEmpty]: Start isEmpty. Operand 59790 states and 98362 transitions. [2023-12-15 23:09:37,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:37,941 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:37,941 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] [2023-12-15 23:09:37,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 23:09:37,942 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:37,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:37,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1834431621, now seen corresponding path program 1 times [2023-12-15 23:09:37,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:37,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861499742] [2023-12-15 23:09:37,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:37,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:37,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:38,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:38,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:38,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:38,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:38,069 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 23:09:38,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:38,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861499742] [2023-12-15 23:09:38,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861499742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:38,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:38,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:09:38,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305110015] [2023-12-15 23:09:38,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:38,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:09:38,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:38,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:09:38,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:09:38,071 INFO L87 Difference]: Start difference. First operand 59790 states and 98362 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:41,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:41,243 INFO L93 Difference]: Finished difference Result 132941 states and 219659 transitions. [2023-12-15 23:09:41,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 23:09:41,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:41,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 23:09:41,472 INFO L225 Difference]: With dead ends: 132941 [2023-12-15 23:09:41,472 INFO L226 Difference]: Without dead ends: 73166 [2023-12-15 23:09:41,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-15 23:09:41,601 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 472 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:41,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 803 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 23:09:41,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73166 states. [2023-12-15 23:09:43,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73166 to 59792. [2023-12-15 23:09:43,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59792 states, 54388 states have (on average 1.5459476355078325) internal successors, (84081), 54645 states have internal predecessors, (84081), 3605 states have call successors, (3605), 1542 states have call predecessors, (3605), 1798 states have return successors, (10422), 3860 states have call predecessors, (10422), 3605 states have call successors, (10422) [2023-12-15 23:09:44,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59792 states to 59792 states and 98108 transitions. [2023-12-15 23:09:44,157 INFO L78 Accepts]: Start accepts. Automaton has 59792 states and 98108 transitions. Word has length 125 [2023-12-15 23:09:44,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 23:09:44,157 INFO L495 AbstractCegarLoop]: Abstraction has 59792 states and 98108 transitions. [2023-12-15 23:09:44,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:44,157 INFO L276 IsEmpty]: Start isEmpty. Operand 59792 states and 98108 transitions. [2023-12-15 23:09:44,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 23:09:44,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 23:09:44,212 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] [2023-12-15 23:09:44,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 23:09:44,212 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 23:09:44,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 23:09:44,213 INFO L85 PathProgramCache]: Analyzing trace with hash 42051197, now seen corresponding path program 1 times [2023-12-15 23:09:44,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 23:09:44,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964592246] [2023-12-15 23:09:44,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 23:09:44,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 23:09:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:44,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 23:09:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:44,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 23:09:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:44,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 23:09:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:44,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 23:09:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:44,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 23:09:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 23:09:44,316 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 23:09:44,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 23:09:44,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964592246] [2023-12-15 23:09:44,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964592246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 23:09:44,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 23:09:44,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 23:09:44,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808594706] [2023-12-15 23:09:44,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 23:09:44,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 23:09:44,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 23:09:44,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 23:09:44,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 23:09:44,318 INFO L87 Difference]: Start difference. First operand 59792 states and 98108 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 23:09:47,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 23:09:47,678 INFO L93 Difference]: Finished difference Result 143187 states and 234515 transitions. [2023-12-15 23:09:47,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 23:09:47,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 125 [2023-12-15 23:09:47,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2023-12-15 23:09:47,807 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 23:09:47,978 INFO L225 Difference]: With dead ends: 143187 [2023-12-15 23:09:47,978 INFO L226 Difference]: Without dead ends: 83410 [2023-12-15 23:09:48,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-15 23:09:48,079 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 475 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 23:09:48,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 802 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 23:09:48,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83410 states. [2023-12-15 23:09:48,234 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 23:09:48,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 23:09:48,235 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-15 23:09:48,239 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 23:09:48,241 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 23:09:48,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:09:48 BoogieIcfgContainer [2023-12-15 23:09:48,243 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 23:09:48,247 INFO L158 Benchmark]: Toolchain (without parser) took 59999.22ms. Allocated memory was 329.3MB in the beginning and 5.1GB in the end (delta: 4.8GB). Free memory was 274.1MB in the beginning and 3.8GB in the end (delta: -3.5GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-15 23:09:48,247 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 233.8MB. Free memory is still 181.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 23:09:48,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.57ms. Allocated memory is still 329.3MB. Free memory was 273.7MB in the beginning and 254.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-15 23:09:48,248 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.07ms. Allocated memory is still 329.3MB. Free memory was 254.3MB in the beginning and 250.9MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 23:09:48,248 INFO L158 Benchmark]: Boogie Preprocessor took 92.02ms. Allocated memory is still 329.3MB. Free memory was 250.9MB in the beginning and 246.9MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 23:09:48,248 INFO L158 Benchmark]: RCFGBuilder took 845.67ms. Allocated memory is still 329.3MB. Free memory was 246.9MB in the beginning and 262.9MB in the end (delta: -16.0MB). Peak memory consumption was 18.4MB. Max. memory is 8.0GB. [2023-12-15 23:09:48,248 INFO L158 Benchmark]: TraceAbstraction took 58465.49ms. Allocated memory was 329.3MB in the beginning and 5.1GB in the end (delta: 4.8GB). Free memory was 262.4MB in the beginning and 3.8GB in the end (delta: -3.5GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-15 23:09:48,251 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 233.8MB. Free memory is still 181.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 504.57ms. Allocated memory is still 329.3MB. Free memory was 273.7MB in the beginning and 254.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 87.07ms. Allocated memory is still 329.3MB. Free memory was 254.3MB in the beginning and 250.9MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 92.02ms. Allocated memory is still 329.3MB. Free memory was 250.9MB in the beginning and 246.9MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 845.67ms. Allocated memory is still 329.3MB. Free memory was 246.9MB in the beginning and 262.9MB in the end (delta: -16.0MB). Peak memory consumption was 18.4MB. Max. memory is 8.0GB. * TraceAbstraction took 58465.49ms. Allocated memory was 329.3MB in the beginning and 5.1GB in the end (delta: 4.8GB). Free memory was 262.4MB in the beginning and 3.8GB in the end (delta: -3.5GB). Peak memory consumption was 1.6GB. 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: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.4s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 42.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16649 SdHoareTripleChecker+Valid, 23.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16409 mSDsluCounter, 17753 SdHoareTripleChecker+Invalid, 19.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13275 mSDsCounter, 1076 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35840 IncrementalHoareTripleChecker+Invalid, 36916 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1076 mSolverCounterUnsat, 4478 mSDtfsCounter, 35840 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 457 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59792occurred in iteration=17, InterpolantAutomatonStates: 199, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.7s AutomataMinimizationTime, 18 MinimizatonAttempts, 87064 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 2250 NumberOfCodeBlocks, 2250 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2232 ConstructedInterpolants, 0 QuantifiedInterpolants, 5984 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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