/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 [2023-12-20 00:47:19,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 00:47:19,229 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 00:47:19,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 00:47:19,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 00:47:19,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 00:47:19,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 00:47:19,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 00:47:19,261 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 00:47:19,264 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 00:47:19,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 00:47:19,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 00:47:19,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 00:47:19,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 00:47:19,266 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 00:47:19,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 00:47:19,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 00:47:19,267 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 00:47:19,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 00:47:19,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 00:47:19,267 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 00:47:19,267 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 00:47:19,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 00:47:19,268 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 00:47:19,268 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 00:47:19,268 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 00:47:19,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 00:47:19,268 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 00:47:19,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 00:47:19,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 00:47:19,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 00:47:19,270 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 00:47:19,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 00:47:19,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 00:47:19,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 00:47:19,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 00:47:19,270 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 00:47:19,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 00:47:19,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 00:47:19,271 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 00:47:19,271 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 00:47:19,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 00:47:19,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 00:47:19,271 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 00:47:19,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 00:47:19,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 00:47:19,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 00:47:19,463 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 00:47:19,463 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 00:47:19,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.08.cil.c [2023-12-20 00:47:20,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 00:47:20,616 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 00:47:20,617 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.08.cil.c [2023-12-20 00:47:20,624 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87db325e4/1cc38ae7638b4da6855860b83f380e2e/FLAG562b45ec3 [2023-12-20 00:47:20,634 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87db325e4/1cc38ae7638b4da6855860b83f380e2e [2023-12-20 00:47:20,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 00:47:20,637 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 00:47:20,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 00:47:20,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 00:47:20,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 00:47:20,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:20,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391fd4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20, skipping insertion in model container [2023-12-20 00:47:20,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:20,687 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 00:47:20,805 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] [2023-12-20 00:47:20,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 00:47:20,882 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 00:47:20,897 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] [2023-12-20 00:47:20,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 00:47:20,953 INFO L206 MainTranslator]: Completed translation [2023-12-20 00:47:20,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20 WrapperNode [2023-12-20 00:47:20,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 00:47:20,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 00:47:20,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 00:47:20,955 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 00:47:20,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:20,970 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:20,996 INFO L138 Inliner]: procedures = 44, calls = 54, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 623 [2023-12-20 00:47:20,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 00:47:20,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 00:47:20,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 00:47:20,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 00:47:21,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:21,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:21,025 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:21,036 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]. [2023-12-20 00:47:21,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:21,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:21,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:21,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:21,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:21,088 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:21,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 00:47:21,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 00:47:21,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 00:47:21,092 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 00:47:21,093 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (1/1) ... [2023-12-20 00:47:21,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 00:47:21,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:47:21,123 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) [2023-12-20 00:47:21,139 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 [2023-12-20 00:47:21,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 00:47:21,154 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-20 00:47:21,155 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-20 00:47:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-20 00:47:21,155 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-20 00:47:21,155 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-20 00:47:21,157 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-20 00:47:21,157 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-20 00:47:21,157 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-20 00:47:21,157 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-20 00:47:21,157 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-20 00:47:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 00:47:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-20 00:47:21,158 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-20 00:47:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 00:47:21,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 00:47:21,264 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 00:47:21,266 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 00:47:21,732 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 00:47:21,796 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 00:47:21,797 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-12-20 00:47:21,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 12:47:21 BoogieIcfgContainer [2023-12-20 00:47:21,797 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 00:47:21,799 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 00:47:21,799 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 00:47:21,802 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 00:47:21,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 12:47:20" (1/3) ... [2023-12-20 00:47:21,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4539fde9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 12:47:21, skipping insertion in model container [2023-12-20 00:47:21,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:47:20" (2/3) ... [2023-12-20 00:47:21,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4539fde9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 12:47:21, skipping insertion in model container [2023-12-20 00:47:21,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 12:47:21" (3/3) ... [2023-12-20 00:47:21,804 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.08.cil.c [2023-12-20 00:47:21,816 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 00:47:21,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 00:47:21,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 00:47:21,871 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;@71a4e00e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 00:47:21,871 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 00:47:21,875 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) [2023-12-20 00:47:21,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:21,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:21,888 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] [2023-12-20 00:47:21,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:21,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:21,892 INFO L85 PathProgramCache]: Analyzing trace with hash -178011246, now seen corresponding path program 1 times [2023-12-20 00:47:21,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:21,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145759418] [2023-12-20 00:47:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:21,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:22,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:22,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:22,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:22,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:22,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:22,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145759418] [2023-12-20 00:47:22,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145759418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:22,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:22,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 00:47:22,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371845472] [2023-12-20 00:47:22,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:22,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 00:47:22,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:22,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 00:47:22,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 00:47:22,394 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) [2023-12-20 00:47:23,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:23,437 INFO L93 Difference]: Finished difference Result 580 states and 988 transitions. [2023-12-20 00:47:23,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 00:47:23,439 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 [2023-12-20 00:47:23,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:23,447 INFO L225 Difference]: With dead ends: 580 [2023-12-20 00:47:23,448 INFO L226 Difference]: Without dead ends: 337 [2023-12-20 00:47:23,451 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 [2023-12-20 00:47:23,453 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 674 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2023-12-20 00:47:23,454 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] [2023-12-20 00:47:23,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-12-20 00:47:23,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 249. [2023-12-20 00:47:23,512 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) [2023-12-20 00:47:23,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 397 transitions. [2023-12-20 00:47:23,515 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 397 transitions. Word has length 125 [2023-12-20 00:47:23,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:23,516 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 397 transitions. [2023-12-20 00:47:23,516 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) [2023-12-20 00:47:23,516 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 397 transitions. [2023-12-20 00:47:23,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:23,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:23,522 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] [2023-12-20 00:47:23,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 00:47:23,523 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:23,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:23,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2115069780, now seen corresponding path program 1 times [2023-12-20 00:47:23,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:23,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133509474] [2023-12-20 00:47:23,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:23,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:23,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:23,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:23,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:23,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:23,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:23,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133509474] [2023-12-20 00:47:23,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133509474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:23,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:23,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 00:47:23,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512897024] [2023-12-20 00:47:23,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:23,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 00:47:23,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:23,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 00:47:23,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:47:23,753 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) [2023-12-20 00:47:25,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:25,244 INFO L93 Difference]: Finished difference Result 905 states and 1486 transitions. [2023-12-20 00:47:25,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 00:47:25,244 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 [2023-12-20 00:47:25,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:25,247 INFO L225 Difference]: With dead ends: 905 [2023-12-20 00:47:25,248 INFO L226 Difference]: Without dead ends: 670 [2023-12-20 00:47:25,249 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 [2023-12-20 00:47:25,250 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 [2023-12-20 00:47:25,250 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] [2023-12-20 00:47:25,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2023-12-20 00:47:25,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 495. [2023-12-20 00:47:25,284 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) [2023-12-20 00:47:25,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 793 transitions. [2023-12-20 00:47:25,286 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 793 transitions. Word has length 125 [2023-12-20 00:47:25,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:25,288 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 793 transitions. [2023-12-20 00:47:25,288 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) [2023-12-20 00:47:25,288 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 793 transitions. [2023-12-20 00:47:25,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:25,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:25,290 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] [2023-12-20 00:47:25,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 00:47:25,290 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:25,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:25,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1592641033, now seen corresponding path program 1 times [2023-12-20 00:47:25,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:25,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350859246] [2023-12-20 00:47:25,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:25,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:25,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:25,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:25,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:25,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:25,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350859246] [2023-12-20 00:47:25,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350859246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:25,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:25,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:25,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435143850] [2023-12-20 00:47:25,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:25,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:25,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:25,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:25,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:25,548 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) [2023-12-20 00:47:28,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:28,030 INFO L93 Difference]: Finished difference Result 1601 states and 2604 transitions. [2023-12-20 00:47:28,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 00:47:28,031 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 [2023-12-20 00:47:28,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:28,037 INFO L225 Difference]: With dead ends: 1601 [2023-12-20 00:47:28,037 INFO L226 Difference]: Without dead ends: 1120 [2023-12-20 00:47:28,039 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 [2023-12-20 00:47:28,041 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1106 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 3195 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 2.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:47:28,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 1430 Invalid, 3248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 3195 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-20 00:47:28,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-12-20 00:47:28,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 723. [2023-12-20 00:47:28,077 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) [2023-12-20 00:47:28,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1152 transitions. [2023-12-20 00:47:28,081 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1152 transitions. Word has length 125 [2023-12-20 00:47:28,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:28,081 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 1152 transitions. [2023-12-20 00:47:28,081 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) [2023-12-20 00:47:28,081 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1152 transitions. [2023-12-20 00:47:28,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:28,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:28,082 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] [2023-12-20 00:47:28,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 00:47:28,083 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:28,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:28,083 INFO L85 PathProgramCache]: Analyzing trace with hash 729160885, now seen corresponding path program 1 times [2023-12-20 00:47:28,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:28,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806920017] [2023-12-20 00:47:28,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:28,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:28,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:28,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:28,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:28,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:28,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:28,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:28,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806920017] [2023-12-20 00:47:28,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806920017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:28,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:28,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:28,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895840381] [2023-12-20 00:47:28,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:28,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:28,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:28,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:28,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:28,300 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) [2023-12-20 00:47:30,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:30,793 INFO L93 Difference]: Finished difference Result 2467 states and 4001 transitions. [2023-12-20 00:47:30,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 00:47:30,794 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 [2023-12-20 00:47:30,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:30,800 INFO L225 Difference]: With dead ends: 2467 [2023-12-20 00:47:30,800 INFO L226 Difference]: Without dead ends: 1758 [2023-12-20 00:47:30,802 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 [2023-12-20 00:47:30,803 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1104 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 3191 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 2.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:47:30,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 1428 Invalid, 3246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3191 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-20 00:47:30,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2023-12-20 00:47:30,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1180. [2023-12-20 00:47:30,843 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) [2023-12-20 00:47:30,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1875 transitions. [2023-12-20 00:47:30,847 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1875 transitions. Word has length 125 [2023-12-20 00:47:30,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:30,847 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1875 transitions. [2023-12-20 00:47:30,848 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) [2023-12-20 00:47:30,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1875 transitions. [2023-12-20 00:47:30,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:30,849 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:30,849 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] [2023-12-20 00:47:30,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 00:47:30,849 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:30,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:30,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1412699593, now seen corresponding path program 1 times [2023-12-20 00:47:30,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:30,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100573116] [2023-12-20 00:47:30,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:30,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:30,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:30,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:30,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:31,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:31,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:31,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:31,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:31,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100573116] [2023-12-20 00:47:31,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100573116] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:31,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:31,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:31,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176099644] [2023-12-20 00:47:31,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:31,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:31,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:31,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:31,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:31,027 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) [2023-12-20 00:47:32,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:32,041 INFO L93 Difference]: Finished difference Result 2808 states and 4544 transitions. [2023-12-20 00:47:32,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:47:32,042 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 [2023-12-20 00:47:32,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:32,048 INFO L225 Difference]: With dead ends: 2808 [2023-12-20 00:47:32,048 INFO L226 Difference]: Without dead ends: 1642 [2023-12-20 00:47:32,051 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 [2023-12-20 00:47:32,052 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 [2023-12-20 00:47:32,052 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] [2023-12-20 00:47:32,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2023-12-20 00:47:32,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1180. [2023-12-20 00:47:32,121 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) [2023-12-20 00:47:32,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1870 transitions. [2023-12-20 00:47:32,125 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1870 transitions. Word has length 125 [2023-12-20 00:47:32,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:32,126 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1870 transitions. [2023-12-20 00:47:32,126 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) [2023-12-20 00:47:32,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1870 transitions. [2023-12-20 00:47:32,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:32,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:32,127 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] [2023-12-20 00:47:32,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 00:47:32,128 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:32,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:32,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2035981195, now seen corresponding path program 1 times [2023-12-20 00:47:32,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:32,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385648586] [2023-12-20 00:47:32,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:32,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:32,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:32,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:32,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:32,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:32,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:32,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:32,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385648586] [2023-12-20 00:47:32,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385648586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:32,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:32,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:32,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687656058] [2023-12-20 00:47:32,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:32,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:32,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:32,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:32,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:32,261 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) [2023-12-20 00:47:33,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:33,203 INFO L93 Difference]: Finished difference Result 2802 states and 4518 transitions. [2023-12-20 00:47:33,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:47:33,203 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 [2023-12-20 00:47:33,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:33,209 INFO L225 Difference]: With dead ends: 2802 [2023-12-20 00:47:33,209 INFO L226 Difference]: Without dead ends: 1636 [2023-12-20 00:47:33,212 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 [2023-12-20 00:47:33,213 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 [2023-12-20 00:47:33,213 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] [2023-12-20 00:47:33,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2023-12-20 00:47:33,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1180. [2023-12-20 00:47:33,259 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) [2023-12-20 00:47:33,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1865 transitions. [2023-12-20 00:47:33,263 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1865 transitions. Word has length 125 [2023-12-20 00:47:33,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:33,263 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1865 transitions. [2023-12-20 00:47:33,263 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) [2023-12-20 00:47:33,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1865 transitions. [2023-12-20 00:47:33,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:33,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:33,265 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] [2023-12-20 00:47:33,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 00:47:33,265 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:33,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:33,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1917539721, now seen corresponding path program 1 times [2023-12-20 00:47:33,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:33,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033914728] [2023-12-20 00:47:33,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:33,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:33,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:33,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:33,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:33,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:33,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:33,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:33,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:33,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033914728] [2023-12-20 00:47:33,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033914728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:33,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:33,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:33,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950515022] [2023-12-20 00:47:33,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:33,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:33,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:33,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:33,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:33,398 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) [2023-12-20 00:47:34,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:34,370 INFO L93 Difference]: Finished difference Result 2795 states and 4490 transitions. [2023-12-20 00:47:34,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:47:34,371 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 [2023-12-20 00:47:34,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:34,378 INFO L225 Difference]: With dead ends: 2795 [2023-12-20 00:47:34,378 INFO L226 Difference]: Without dead ends: 1629 [2023-12-20 00:47:34,381 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 [2023-12-20 00:47:34,382 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 [2023-12-20 00:47:34,382 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] [2023-12-20 00:47:34,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2023-12-20 00:47:34,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1180. [2023-12-20 00:47:34,420 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) [2023-12-20 00:47:34,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1860 transitions. [2023-12-20 00:47:34,424 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1860 transitions. Word has length 125 [2023-12-20 00:47:34,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:34,424 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1860 transitions. [2023-12-20 00:47:34,424 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) [2023-12-20 00:47:34,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1860 transitions. [2023-12-20 00:47:34,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:34,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:34,426 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] [2023-12-20 00:47:34,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 00:47:34,426 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:34,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:34,426 INFO L85 PathProgramCache]: Analyzing trace with hash -528245707, now seen corresponding path program 1 times [2023-12-20 00:47:34,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:34,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288349982] [2023-12-20 00:47:34,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:34,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:34,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:34,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:34,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:34,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:34,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:34,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:34,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288349982] [2023-12-20 00:47:34,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288349982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:34,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:34,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:34,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454066340] [2023-12-20 00:47:34,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:34,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:34,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:34,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:34,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:34,568 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) [2023-12-20 00:47:36,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:36,887 INFO L93 Difference]: Finished difference Result 4107 states and 6560 transitions. [2023-12-20 00:47:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 00:47:36,888 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 [2023-12-20 00:47:36,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:36,925 INFO L225 Difference]: With dead ends: 4107 [2023-12-20 00:47:36,926 INFO L226 Difference]: Without dead ends: 2941 [2023-12-20 00:47:36,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-20 00:47:36,929 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1082 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:47:36,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 1428 Invalid, 3160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 00:47:36,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2023-12-20 00:47:37,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2107. [2023-12-20 00:47:37,023 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) [2023-12-20 00:47:37,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 3315 transitions. [2023-12-20 00:47:37,027 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 3315 transitions. Word has length 125 [2023-12-20 00:47:37,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:37,028 INFO L495 AbstractCegarLoop]: Abstraction has 2107 states and 3315 transitions. [2023-12-20 00:47:37,028 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) [2023-12-20 00:47:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 3315 transitions. [2023-12-20 00:47:37,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:37,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:37,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:47:37,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 00:47:37,036 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:37,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:37,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1733327543, now seen corresponding path program 1 times [2023-12-20 00:47:37,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:37,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019016553] [2023-12-20 00:47:37,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:37,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:37,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:37,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:37,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:37,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:37,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:37,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019016553] [2023-12-20 00:47:37,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019016553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:37,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:37,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:37,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057312757] [2023-12-20 00:47:37,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:37,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:37,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:37,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:37,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:37,179 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) [2023-12-20 00:47:39,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:39,564 INFO L93 Difference]: Finished difference Result 7420 states and 11833 transitions. [2023-12-20 00:47:39,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 00:47:39,564 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 [2023-12-20 00:47:39,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:39,579 INFO L225 Difference]: With dead ends: 7420 [2023-12-20 00:47:39,579 INFO L226 Difference]: Without dead ends: 5327 [2023-12-20 00:47:39,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-12-20 00:47:39,584 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1078 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 3077 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:47:39,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 1428 Invalid, 3132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3077 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 00:47:39,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5327 states. [2023-12-20 00:47:39,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5327 to 3970. [2023-12-20 00:47:39,721 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) [2023-12-20 00:47:39,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3970 states to 3970 states and 6257 transitions. [2023-12-20 00:47:39,729 INFO L78 Accepts]: Start accepts. Automaton has 3970 states and 6257 transitions. Word has length 125 [2023-12-20 00:47:39,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:39,729 INFO L495 AbstractCegarLoop]: Abstraction has 3970 states and 6257 transitions. [2023-12-20 00:47:39,729 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) [2023-12-20 00:47:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3970 states and 6257 transitions. [2023-12-20 00:47:39,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:39,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:39,734 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] [2023-12-20 00:47:39,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 00:47:39,734 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:39,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:39,734 INFO L85 PathProgramCache]: Analyzing trace with hash 426185145, now seen corresponding path program 1 times [2023-12-20 00:47:39,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:39,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824045299] [2023-12-20 00:47:39,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:39,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:39,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:39,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:39,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:39,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:39,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824045299] [2023-12-20 00:47:39,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824045299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:39,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:39,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:39,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241738366] [2023-12-20 00:47:39,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:39,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:39,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:39,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:39,865 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) [2023-12-20 00:47:42,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:42,501 INFO L93 Difference]: Finished difference Result 15563 states and 24863 transitions. [2023-12-20 00:47:42,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 00:47:42,502 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 [2023-12-20 00:47:42,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:42,547 INFO L225 Difference]: With dead ends: 15563 [2023-12-20 00:47:42,547 INFO L226 Difference]: Without dead ends: 11607 [2023-12-20 00:47:42,560 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 [2023-12-20 00:47:42,560 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1142 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 2.0s IncrementalHoareTripleChecker+Time [2023-12-20 00:47:42,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 1405 Invalid, 3137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-20 00:47:42,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11607 states. [2023-12-20 00:47:42,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11607 to 7661. [2023-12-20 00:47:42,944 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) [2023-12-20 00:47:42,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7661 states to 7661 states and 12149 transitions. [2023-12-20 00:47:42,962 INFO L78 Accepts]: Start accepts. Automaton has 7661 states and 12149 transitions. Word has length 125 [2023-12-20 00:47:42,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:42,962 INFO L495 AbstractCegarLoop]: Abstraction has 7661 states and 12149 transitions. [2023-12-20 00:47:42,963 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) [2023-12-20 00:47:42,963 INFO L276 IsEmpty]: Start isEmpty. Operand 7661 states and 12149 transitions. [2023-12-20 00:47:42,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:42,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:42,972 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] [2023-12-20 00:47:42,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 00:47:42,972 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:42,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:42,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1971285385, now seen corresponding path program 1 times [2023-12-20 00:47:42,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:42,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995063723] [2023-12-20 00:47:42,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:42,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:43,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:43,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:43,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:43,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:43,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:43,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:43,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995063723] [2023-12-20 00:47:43,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995063723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:43,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:43,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:43,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793609403] [2023-12-20 00:47:43,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:43,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:43,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:43,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:43,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:43,111 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) [2023-12-20 00:47:44,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:44,274 INFO L93 Difference]: Finished difference Result 17678 states and 28470 transitions. [2023-12-20 00:47:44,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:47:44,274 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 [2023-12-20 00:47:44,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:44,318 INFO L225 Difference]: With dead ends: 17678 [2023-12-20 00:47:44,319 INFO L226 Difference]: Without dead ends: 10031 [2023-12-20 00:47:44,341 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 [2023-12-20 00:47:44,342 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 [2023-12-20 00:47:44,342 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] [2023-12-20 00:47:44,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10031 states. [2023-12-20 00:47:44,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10031 to 7661. [2023-12-20 00:47:44,660 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) [2023-12-20 00:47:44,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7661 states to 7661 states and 12116 transitions. [2023-12-20 00:47:44,676 INFO L78 Accepts]: Start accepts. Automaton has 7661 states and 12116 transitions. Word has length 125 [2023-12-20 00:47:44,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:44,677 INFO L495 AbstractCegarLoop]: Abstraction has 7661 states and 12116 transitions. [2023-12-20 00:47:44,677 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) [2023-12-20 00:47:44,677 INFO L276 IsEmpty]: Start isEmpty. Operand 7661 states and 12116 transitions. [2023-12-20 00:47:44,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:44,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:44,686 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] [2023-12-20 00:47:44,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 00:47:44,686 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:44,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:44,686 INFO L85 PathProgramCache]: Analyzing trace with hash -940244487, now seen corresponding path program 1 times [2023-12-20 00:47:44,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:44,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732623754] [2023-12-20 00:47:44,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:44,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:44,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:44,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:44,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:44,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:44,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:44,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732623754] [2023-12-20 00:47:44,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732623754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:44,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:44,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:44,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346873906] [2023-12-20 00:47:44,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:44,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:44,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:44,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:44,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:44,815 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) [2023-12-20 00:47:47,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:47,364 INFO L93 Difference]: Finished difference Result 29398 states and 47069 transitions. [2023-12-20 00:47:47,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 00:47:47,364 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 [2023-12-20 00:47:47,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:47,460 INFO L225 Difference]: With dead ends: 29398 [2023-12-20 00:47:47,460 INFO L226 Difference]: Without dead ends: 21751 [2023-12-20 00:47:47,486 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 [2023-12-20 00:47:47,487 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 [2023-12-20 00:47:47,488 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] [2023-12-20 00:47:47,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21751 states. [2023-12-20 00:47:48,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21751 to 15091. [2023-12-20 00:47:48,116 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) [2023-12-20 00:47:48,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15091 states to 15091 states and 24078 transitions. [2023-12-20 00:47:48,156 INFO L78 Accepts]: Start accepts. Automaton has 15091 states and 24078 transitions. Word has length 125 [2023-12-20 00:47:48,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:48,156 INFO L495 AbstractCegarLoop]: Abstraction has 15091 states and 24078 transitions. [2023-12-20 00:47:48,156 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) [2023-12-20 00:47:48,157 INFO L276 IsEmpty]: Start isEmpty. Operand 15091 states and 24078 transitions. [2023-12-20 00:47:48,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:48,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:48,175 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] [2023-12-20 00:47:48,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 00:47:48,175 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:48,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:48,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1448319543, now seen corresponding path program 1 times [2023-12-20 00:47:48,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:48,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212155188] [2023-12-20 00:47:48,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:48,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:48,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:48,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:48,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:48,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:48,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:48,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:48,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212155188] [2023-12-20 00:47:48,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212155188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:48,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:48,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:48,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522794436] [2023-12-20 00:47:48,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:48,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:48,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:48,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:48,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:48,303 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) [2023-12-20 00:47:51,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:51,540 INFO L93 Difference]: Finished difference Result 57090 states and 92197 transitions. [2023-12-20 00:47:51,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 00:47:51,541 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 [2023-12-20 00:47:51,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:51,744 INFO L225 Difference]: With dead ends: 57090 [2023-12-20 00:47:51,745 INFO L226 Difference]: Without dead ends: 42013 [2023-12-20 00:47:51,773 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 [2023-12-20 00:47:51,773 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 [2023-12-20 00:47:51,773 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] [2023-12-20 00:47:51,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42013 states. [2023-12-20 00:47:53,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42013 to 29948. [2023-12-20 00:47:53,144 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) [2023-12-20 00:47:53,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29948 states to 29948 states and 48482 transitions. [2023-12-20 00:47:53,220 INFO L78 Accepts]: Start accepts. Automaton has 29948 states and 48482 transitions. Word has length 125 [2023-12-20 00:47:53,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:53,221 INFO L495 AbstractCegarLoop]: Abstraction has 29948 states and 48482 transitions. [2023-12-20 00:47:53,221 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) [2023-12-20 00:47:53,221 INFO L276 IsEmpty]: Start isEmpty. Operand 29948 states and 48482 transitions. [2023-12-20 00:47:53,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:53,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:53,250 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] [2023-12-20 00:47:53,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 00:47:53,251 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:53,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:53,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1245576647, now seen corresponding path program 1 times [2023-12-20 00:47:53,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:53,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821569798] [2023-12-20 00:47:53,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:53,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:53,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:53,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:53,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:53,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821569798] [2023-12-20 00:47:53,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821569798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:53,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:53,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:53,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435918459] [2023-12-20 00:47:53,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:53,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:53,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:53,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:53,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:53,373 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) [2023-12-20 00:47:55,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:47:55,346 INFO L93 Difference]: Finished difference Result 68230 states and 112619 transitions. [2023-12-20 00:47:55,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:47:55,347 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 [2023-12-20 00:47:55,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:47:55,589 INFO L225 Difference]: With dead ends: 68230 [2023-12-20 00:47:55,590 INFO L226 Difference]: Without dead ends: 38296 [2023-12-20 00:47:55,628 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 [2023-12-20 00:47:55,629 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 [2023-12-20 00:47:55,629 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] [2023-12-20 00:47:55,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38296 states. [2023-12-20 00:47:56,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38296 to 29948. [2023-12-20 00:47:56,673 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) [2023-12-20 00:47:56,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29948 states to 29948 states and 48353 transitions. [2023-12-20 00:47:56,745 INFO L78 Accepts]: Start accepts. Automaton has 29948 states and 48353 transitions. Word has length 125 [2023-12-20 00:47:56,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:47:56,746 INFO L495 AbstractCegarLoop]: Abstraction has 29948 states and 48353 transitions. [2023-12-20 00:47:56,746 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) [2023-12-20 00:47:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 29948 states and 48353 transitions. [2023-12-20 00:47:56,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:47:56,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:47:56,775 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] [2023-12-20 00:47:56,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 00:47:56,776 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:47:56,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:47:56,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1992659447, now seen corresponding path program 1 times [2023-12-20 00:47:56,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:47:56,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923392612] [2023-12-20 00:47:56,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:47:56,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:47:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:56,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:47:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:56,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:47:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:47:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:56,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:47:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:56,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:47:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:47:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:47:56,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:47:56,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923392612] [2023-12-20 00:47:56,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923392612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:47:56,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:47:56,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:47:56,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552016451] [2023-12-20 00:47:56,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:47:56,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:47:56,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:47:56,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:47:56,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:47:56,900 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) [2023-12-20 00:48:01,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:48:01,255 INFO L93 Difference]: Finished difference Result 109847 states and 179523 transitions. [2023-12-20 00:48:01,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 00:48:01,256 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 [2023-12-20 00:48:01,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:48:01,483 INFO L225 Difference]: With dead ends: 109847 [2023-12-20 00:48:01,484 INFO L226 Difference]: Without dead ends: 79913 [2023-12-20 00:48:01,541 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 [2023-12-20 00:48:01,542 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 [2023-12-20 00:48:01,542 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] [2023-12-20 00:48:01,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79913 states. [2023-12-20 00:48:04,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79913 to 59790. [2023-12-20 00:48:04,099 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) [2023-12-20 00:48:04,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59790 states to 59790 states and 98619 transitions. [2023-12-20 00:48:04,287 INFO L78 Accepts]: Start accepts. Automaton has 59790 states and 98619 transitions. Word has length 125 [2023-12-20 00:48:04,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:48:04,287 INFO L495 AbstractCegarLoop]: Abstraction has 59790 states and 98619 transitions. [2023-12-20 00:48:04,287 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) [2023-12-20 00:48:04,288 INFO L276 IsEmpty]: Start isEmpty. Operand 59790 states and 98619 transitions. [2023-12-20 00:48:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:48:04,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:48:04,337 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] [2023-12-20 00:48:04,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 00:48:04,337 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:48:04,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:48:04,338 INFO L85 PathProgramCache]: Analyzing trace with hash -950922631, now seen corresponding path program 1 times [2023-12-20 00:48:04,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:48:04,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027952836] [2023-12-20 00:48:04,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:48:04,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:48:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:04,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:48:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:04,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:48:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:04,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:48:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:48:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:04,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:48:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:48:04,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:48:04,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027952836] [2023-12-20 00:48:04,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027952836] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:48:04,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:48:04,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:48:04,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610087416] [2023-12-20 00:48:04,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:48:04,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:48:04,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:48:04,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:48:04,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:48:04,452 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) [2023-12-20 00:48:07,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:48:07,272 INFO L93 Difference]: Finished difference Result 134948 states and 227942 transitions. [2023-12-20 00:48:07,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 00:48:07,273 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 [2023-12-20 00:48:07,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:48:07,524 INFO L225 Difference]: With dead ends: 134948 [2023-12-20 00:48:07,524 INFO L226 Difference]: Without dead ends: 75172 [2023-12-20 00:48:07,640 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 [2023-12-20 00:48:07,641 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 [2023-12-20 00:48:07,641 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] [2023-12-20 00:48:07,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75172 states. [2023-12-20 00:48:10,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75172 to 59790. [2023-12-20 00:48:10,279 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) [2023-12-20 00:48:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59790 states to 59790 states and 98362 transitions. [2023-12-20 00:48:10,448 INFO L78 Accepts]: Start accepts. Automaton has 59790 states and 98362 transitions. Word has length 125 [2023-12-20 00:48:10,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:48:10,449 INFO L495 AbstractCegarLoop]: Abstraction has 59790 states and 98362 transitions. [2023-12-20 00:48:10,449 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) [2023-12-20 00:48:10,449 INFO L276 IsEmpty]: Start isEmpty. Operand 59790 states and 98362 transitions. [2023-12-20 00:48:10,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:48:10,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:48:10,499 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] [2023-12-20 00:48:10,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 00:48:10,500 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:48:10,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:48:10,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1834431621, now seen corresponding path program 1 times [2023-12-20 00:48:10,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:48:10,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299874229] [2023-12-20 00:48:10,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:48:10,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:48:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:48:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:10,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:48:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:10,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:48:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:10,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:48:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:10,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:48:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:10,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:48:10,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:48:10,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299874229] [2023-12-20 00:48:10,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299874229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:48:10,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:48:10,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 00:48:10,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714827115] [2023-12-20 00:48:10,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:48:10,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 00:48:10,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:48:10,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 00:48:10,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:48:10,798 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) [2023-12-20 00:48:13,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:48:13,755 INFO L93 Difference]: Finished difference Result 132941 states and 219659 transitions. [2023-12-20 00:48:13,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 00:48:13,756 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 [2023-12-20 00:48:13,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:48:13,965 INFO L225 Difference]: With dead ends: 132941 [2023-12-20 00:48:13,965 INFO L226 Difference]: Without dead ends: 73166 [2023-12-20 00:48:14,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-20 00:48:14,066 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 [2023-12-20 00:48:14,066 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] [2023-12-20 00:48:14,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73166 states. [2023-12-20 00:48:16,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73166 to 59792. [2023-12-20 00:48:16,644 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) [2023-12-20 00:48:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59792 states to 59792 states and 98108 transitions. [2023-12-20 00:48:16,808 INFO L78 Accepts]: Start accepts. Automaton has 59792 states and 98108 transitions. Word has length 125 [2023-12-20 00:48:16,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:48:16,809 INFO L495 AbstractCegarLoop]: Abstraction has 59792 states and 98108 transitions. [2023-12-20 00:48:16,809 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) [2023-12-20 00:48:16,809 INFO L276 IsEmpty]: Start isEmpty. Operand 59792 states and 98108 transitions. [2023-12-20 00:48:16,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:48:16,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:48:16,853 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] [2023-12-20 00:48:16,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 00:48:16,853 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:48:16,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:48:16,853 INFO L85 PathProgramCache]: Analyzing trace with hash 42051197, now seen corresponding path program 1 times [2023-12-20 00:48:16,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:48:16,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250283738] [2023-12-20 00:48:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:48:16,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:48:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:16,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:48:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:16,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:48:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:16,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:48:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:16,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:48:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:16,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:48:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:16,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:48:16,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:48:16,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250283738] [2023-12-20 00:48:16,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250283738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:48:16,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:48:16,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 00:48:16,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385795681] [2023-12-20 00:48:16,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:48:16,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 00:48:16,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:48:16,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 00:48:16,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:48:16,955 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) [2023-12-20 00:48:20,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:48:20,208 INFO L93 Difference]: Finished difference Result 143187 states and 234515 transitions. [2023-12-20 00:48:20,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 00:48:20,210 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 [2023-12-20 00:48:20,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:48:20,408 INFO L225 Difference]: With dead ends: 143187 [2023-12-20 00:48:20,409 INFO L226 Difference]: Without dead ends: 83410 [2023-12-20 00:48:20,487 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 [2023-12-20 00:48:20,488 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 475 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:48:20,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 802 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 00:48:20,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83410 states. [2023-12-20 00:48:22,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83410 to 60306. [2023-12-20 00:48:22,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60306 states, 54902 states have (on average 1.5408363994025718) internal successors, (84595), 55159 states have internal predecessors, (84595), 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) [2023-12-20 00:48:23,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60306 states to 60306 states and 98622 transitions. [2023-12-20 00:48:23,100 INFO L78 Accepts]: Start accepts. Automaton has 60306 states and 98622 transitions. Word has length 125 [2023-12-20 00:48:23,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:48:23,101 INFO L495 AbstractCegarLoop]: Abstraction has 60306 states and 98622 transitions. [2023-12-20 00:48:23,101 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) [2023-12-20 00:48:23,101 INFO L276 IsEmpty]: Start isEmpty. Operand 60306 states and 98622 transitions. [2023-12-20 00:48:23,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:48:23,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:48:23,143 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] [2023-12-20 00:48:23,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 00:48:23,143 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:48:23,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:48:23,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1100451269, now seen corresponding path program 1 times [2023-12-20 00:48:23,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:48:23,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945432308] [2023-12-20 00:48:23,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:48:23,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:48:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:23,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:48:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:48:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:23,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:48:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:23,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:48:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:23,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:48:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:23,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:48:23,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:48:23,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945432308] [2023-12-20 00:48:23,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945432308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:48:23,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:48:23,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:48:23,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32075987] [2023-12-20 00:48:23,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:48:23,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 00:48:23,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:48:23,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 00:48:23,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 00:48:23,273 INFO L87 Difference]: Start difference. First operand 60306 states and 98622 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) [2023-12-20 00:48:33,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:48:33,129 INFO L93 Difference]: Finished difference Result 344649 states and 575717 transitions. [2023-12-20 00:48:33,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 00:48:33,130 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 [2023-12-20 00:48:33,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:48:34,319 INFO L225 Difference]: With dead ends: 344649 [2023-12-20 00:48:34,320 INFO L226 Difference]: Without dead ends: 284358 [2023-12-20 00:48:34,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2023-12-20 00:48:34,622 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 2736 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 2678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:48:34,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2750 Valid, 1249 Invalid, 2678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 00:48:34,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284358 states. [2023-12-20 00:48:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284358 to 232173. [2023-12-20 00:48:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232173 states, 211601 states have (on average 1.536897273642374) internal successors, (325209), 212626 states have internal predecessors, (325209), 13379 states have call successors, (13379), 6168 states have call predecessors, (13379), 7192 states have return successors, (45673), 13634 states have call predecessors, (45673), 13379 states have call successors, (45673) [2023-12-20 00:48:45,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232173 states to 232173 states and 384261 transitions. [2023-12-20 00:48:45,067 INFO L78 Accepts]: Start accepts. Automaton has 232173 states and 384261 transitions. Word has length 125 [2023-12-20 00:48:45,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:48:45,067 INFO L495 AbstractCegarLoop]: Abstraction has 232173 states and 384261 transitions. [2023-12-20 00:48:45,067 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) [2023-12-20 00:48:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand 232173 states and 384261 transitions. [2023-12-20 00:48:45,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-20 00:48:45,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:48:45,135 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] [2023-12-20 00:48:45,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 00:48:45,136 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:48:45,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:48:45,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1917363354, now seen corresponding path program 1 times [2023-12-20 00:48:45,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:48:45,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571420982] [2023-12-20 00:48:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:48:45,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:48:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:45,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 00:48:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:45,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 00:48:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:45,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 00:48:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 00:48:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:45,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 00:48:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:48:45,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:48:45,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:48:45,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571420982] [2023-12-20 00:48:45,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571420982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:48:45,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:48:45,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 00:48:45,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572916522] [2023-12-20 00:48:45,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:48:45,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 00:48:45,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:48:45,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 00:48:45,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 00:48:45,389 INFO L87 Difference]: Start difference. First operand 232173 states and 384261 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) [2023-12-20 00:48:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:48:55,642 INFO L93 Difference]: Finished difference Result 529508 states and 888379 transitions. [2023-12-20 00:48:55,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 00:48:55,642 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 [2023-12-20 00:48:55,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:48:56,743 INFO L225 Difference]: With dead ends: 529508 [2023-12-20 00:48:56,743 INFO L226 Difference]: Without dead ends: 297350 [2023-12-20 00:48:57,206 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 [2023-12-20 00:48:57,206 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 463 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 00:48:57,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 802 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 00:48:57,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297350 states.