/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label41+token_ring.08.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 11:16:20,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 11:16:20,990 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 11:16:20,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 11:16:20,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 11:16:21,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 11:16:21,017 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 11:16:21,018 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 11:16:21,018 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 11:16:21,021 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 11:16:21,021 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 11:16:21,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 11:16:21,022 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 11:16:21,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 11:16:21,023 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 11:16:21,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 11:16:21,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 11:16:21,023 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 11:16:21,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 11:16:21,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 11:16:21,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 11:16:21,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 11:16:21,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 11:16:21,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 11:16:21,025 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 11:16:21,025 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 11:16:21,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 11:16:21,025 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 11:16:21,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 11:16:21,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 11:16:21,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 11:16:21,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 11:16:21,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 11:16:21,027 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 11:16:21,027 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 11:16:21,027 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 11:16:21,027 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 11:16:21,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 11:16:21,027 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 11:16:21,027 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 11:16:21,027 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 11:16:21,028 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 11:16:21,028 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 11:16:21,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 11:16:21,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 11:16:21,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 11:16:21,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 11:16:21,233 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 11:16:21,233 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 11:16:21,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label41+token_ring.08.cil-1.c [2023-12-20 11:16:22,173 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 11:16:22,655 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 11:16:22,656 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.08.cil-1.c [2023-12-20 11:16:22,698 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b514fead3/cb84f2df8c7a44b8b27206cdc82ffea3/FLAG528bbc49e [2023-12-20 11:16:22,712 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b514fead3/cb84f2df8c7a44b8b27206cdc82ffea3 [2023-12-20 11:16:22,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 11:16:22,714 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 11:16:22,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 11:16:22,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 11:16:22,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 11:16:22,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:16:22" (1/1) ... [2023-12-20 11:16:22,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae2a989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:22, skipping insertion in model container [2023-12-20 11:16:22,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:16:22" (1/1) ... [2023-12-20 11:16:22,894 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 11:16:23,952 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.08.cil-1.c[376251,376264] [2023-12-20 11:16:23,977 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.08.cil-1.c[383339,383352] [2023-12-20 11:16:24,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 11:16:24,148 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 11:16:24,686 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.08.cil-1.c[376251,376264] [2023-12-20 11:16:24,694 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.08.cil-1.c[383339,383352] [2023-12-20 11:16:24,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 11:16:24,758 INFO L206 MainTranslator]: Completed translation [2023-12-20 11:16:24,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24 WrapperNode [2023-12-20 11:16:24,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 11:16:24,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 11:16:24,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 11:16:24,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 11:16:24,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:24,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:25,076 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12993 [2023-12-20 11:16:25,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 11:16:25,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 11:16:25,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 11:16:25,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 11:16:25,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:25,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:25,150 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:25,203 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 11:16:25,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:25,203 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:25,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:25,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:25,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:25,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:25,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 11:16:25,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 11:16:25,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 11:16:25,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 11:16:25,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (1/1) ... [2023-12-20 11:16:25,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 11:16:25,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:16:25,558 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 11:16:25,567 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 11:16:25,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 11:16:25,578 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-20 11:16:25,578 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-20 11:16:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-20 11:16:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-20 11:16:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-20 11:16:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-20 11:16:25,579 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-20 11:16:25,579 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-20 11:16:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-20 11:16:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-20 11:16:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-20 11:16:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-20 11:16:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 11:16:25,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 11:16:25,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 11:16:25,702 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 11:16:25,704 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 11:16:30,888 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 11:16:30,979 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 11:16:30,979 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-12-20 11:16:30,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:16:30 BoogieIcfgContainer [2023-12-20 11:16:30,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 11:16:30,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 11:16:30,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 11:16:30,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 11:16:30,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 11:16:22" (1/3) ... [2023-12-20 11:16:30,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25660a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:16:30, skipping insertion in model container [2023-12-20 11:16:30,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:16:24" (2/3) ... [2023-12-20 11:16:30,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25660a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:16:30, skipping insertion in model container [2023-12-20 11:16:30,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:16:30" (3/3) ... [2023-12-20 11:16:30,985 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.08.cil-1.c [2023-12-20 11:16:30,997 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 11:16:30,997 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-20 11:16:31,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 11:16:31,058 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;@5ed1a643, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 11:16:31,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-20 11:16:31,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 2379 states, 2348 states have (on average 1.8794718909710393) internal successors, (4413), 2351 states have internal predecessors, (4413), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-20 11:16:31,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:31,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:31,080 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] [2023-12-20 11:16:31,081 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:31,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:31,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2060137260, now seen corresponding path program 1 times [2023-12-20 11:16:31,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:31,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021769448] [2023-12-20 11:16:31,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:31,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:31,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:31,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:31,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:31,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:31,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:31,538 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 11:16:31,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:31,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021769448] [2023-12-20 11:16:31,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021769448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:31,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:31,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 11:16:31,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603314579] [2023-12-20 11:16:31,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:31,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 11:16:31,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:31,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 11:16:31,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 11:16:31,568 INFO L87 Difference]: Start difference. First operand has 2379 states, 2348 states have (on average 1.8794718909710393) internal successors, (4413), 2351 states have internal predecessors, (4413), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 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 11:16:32,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:32,690 INFO L93 Difference]: Finished difference Result 4844 states and 9066 transitions. [2023-12-20 11:16:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 11:16:32,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:32,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:32,707 INFO L225 Difference]: With dead ends: 4844 [2023-12-20 11:16:32,708 INFO L226 Difference]: Without dead ends: 2465 [2023-12-20 11:16:32,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 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 11:16:32,716 INFO L413 NwaCegarLoop]: 4181 mSDtfsCounter, 695 mSDsluCounter, 12116 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 16297 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:32,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 16297 Invalid, 806 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 11:16:32,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2023-12-20 11:16:32,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2375. [2023-12-20 11:16:32,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2375 states, 2345 states have (on average 1.8426439232409382) internal successors, (4321), 2347 states have internal predecessors, (4321), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-20 11:16:32,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2375 states to 2375 states and 4365 transitions. [2023-12-20 11:16:32,803 INFO L78 Accepts]: Start accepts. Automaton has 2375 states and 4365 transitions. Word has length 121 [2023-12-20 11:16:32,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:32,804 INFO L495 AbstractCegarLoop]: Abstraction has 2375 states and 4365 transitions. [2023-12-20 11:16:32,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 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 11:16:32,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2375 states and 4365 transitions. [2023-12-20 11:16:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:32,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:32,807 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] [2023-12-20 11:16:32,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 11:16:32,807 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:32,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:32,808 INFO L85 PathProgramCache]: Analyzing trace with hash 58250990, now seen corresponding path program 1 times [2023-12-20 11:16:32,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:32,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808749977] [2023-12-20 11:16:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:32,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:32,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:32,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:32,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:32,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:32,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:32,979 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 11:16:32,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:32,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808749977] [2023-12-20 11:16:32,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808749977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:32,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:32,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 11:16:32,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607209233] [2023-12-20 11:16:32,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:32,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 11:16:32,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:32,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 11:16:32,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 11:16:32,994 INFO L87 Difference]: Start difference. First operand 2375 states and 4365 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 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 11:16:34,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:34,613 INFO L93 Difference]: Finished difference Result 3046 states and 5475 transitions. [2023-12-20 11:16:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 11:16:34,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:34,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:34,624 INFO L225 Difference]: With dead ends: 3046 [2023-12-20 11:16:34,624 INFO L226 Difference]: Without dead ends: 2806 [2023-12-20 11:16:34,626 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 11:16:34,627 INFO L413 NwaCegarLoop]: 4154 mSDtfsCounter, 4998 mSDsluCounter, 12445 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5013 SdHoareTripleChecker+Valid, 16599 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:34,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5013 Valid, 16599 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 11:16:34,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2023-12-20 11:16:34,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2627. [2023-12-20 11:16:34,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2573 states have (on average 1.8239409249902838) internal successors, (4693), 2576 states have internal predecessors, (4693), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2023-12-20 11:16:34,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4774 transitions. [2023-12-20 11:16:34,682 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4774 transitions. Word has length 121 [2023-12-20 11:16:34,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:34,682 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4774 transitions. [2023-12-20 11:16:34,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 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 11:16:34,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4774 transitions. [2023-12-20 11:16:34,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:34,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:34,686 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] [2023-12-20 11:16:34,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 11:16:34,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:34,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:34,686 INFO L85 PathProgramCache]: Analyzing trace with hash 603539502, now seen corresponding path program 1 times [2023-12-20 11:16:34,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:34,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128153905] [2023-12-20 11:16:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:34,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:34,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:34,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:34,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:34,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:34,862 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 11:16:34,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:34,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128153905] [2023-12-20 11:16:34,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128153905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:34,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:34,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:16:34,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022827151] [2023-12-20 11:16:34,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:34,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:16:34,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:34,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:16:34,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:16:34,867 INFO L87 Difference]: Start difference. First operand 2627 states and 4774 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:37,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:37,152 INFO L93 Difference]: Finished difference Result 3651 states and 6465 transitions. [2023-12-20 11:16:37,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:16:37,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:37,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:37,163 INFO L225 Difference]: With dead ends: 3651 [2023-12-20 11:16:37,163 INFO L226 Difference]: Without dead ends: 3159 [2023-12-20 11:16:37,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:16:37,166 INFO L413 NwaCegarLoop]: 4300 mSDtfsCounter, 5019 mSDsluCounter, 16941 mSDsCounter, 0 mSdLazyCounter, 2638 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5034 SdHoareTripleChecker+Valid, 21241 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:37,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5034 Valid, 21241 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2638 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 11:16:37,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2023-12-20 11:16:37,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 2860. [2023-12-20 11:16:37,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2782 states have (on average 1.8069734004313445) internal successors, (5027), 2786 states have internal predecessors, (5027), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2023-12-20 11:16:37,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 5144 transitions. [2023-12-20 11:16:37,237 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 5144 transitions. Word has length 121 [2023-12-20 11:16:37,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:37,237 INFO L495 AbstractCegarLoop]: Abstraction has 2860 states and 5144 transitions. [2023-12-20 11:16:37,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:37,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 5144 transitions. [2023-12-20 11:16:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:37,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:37,238 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] [2023-12-20 11:16:37,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 11:16:37,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:37,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:37,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1429854544, now seen corresponding path program 1 times [2023-12-20 11:16:37,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:37,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349657775] [2023-12-20 11:16:37,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:37,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:37,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:37,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:37,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:37,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:37,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:37,384 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 11:16:37,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:37,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349657775] [2023-12-20 11:16:37,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349657775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:37,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:37,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:16:37,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794687163] [2023-12-20 11:16:37,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:37,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:16:37,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:37,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:16:37,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:16:37,386 INFO L87 Difference]: Start difference. First operand 2860 states and 5144 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:39,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:39,291 INFO L93 Difference]: Finished difference Result 4537 states and 7907 transitions. [2023-12-20 11:16:39,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:16:39,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:39,310 INFO L225 Difference]: With dead ends: 4537 [2023-12-20 11:16:39,310 INFO L226 Difference]: Without dead ends: 3812 [2023-12-20 11:16:39,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:16:39,313 INFO L413 NwaCegarLoop]: 4163 mSDtfsCounter, 5097 mSDsluCounter, 16578 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5112 SdHoareTripleChecker+Valid, 20741 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:39,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5112 Valid, 20741 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 11:16:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3812 states. [2023-12-20 11:16:39,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3812 to 3327. [2023-12-20 11:16:39,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3327 states, 3201 states have (on average 1.7794439237738207) internal successors, (5696), 3207 states have internal predecessors, (5696), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2023-12-20 11:16:39,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 5889 transitions. [2023-12-20 11:16:39,467 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 5889 transitions. Word has length 121 [2023-12-20 11:16:39,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:39,467 INFO L495 AbstractCegarLoop]: Abstraction has 3327 states and 5889 transitions. [2023-12-20 11:16:39,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:39,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 5889 transitions. [2023-12-20 11:16:39,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:39,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:39,469 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] [2023-12-20 11:16:39,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 11:16:39,469 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:39,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:39,470 INFO L85 PathProgramCache]: Analyzing trace with hash 998404078, now seen corresponding path program 1 times [2023-12-20 11:16:39,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:39,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200993350] [2023-12-20 11:16:39,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:39,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:39,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:39,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:39,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:39,617 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 11:16:39,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:39,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200993350] [2023-12-20 11:16:39,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200993350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:39,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:39,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:16:39,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237916975] [2023-12-20 11:16:39,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:39,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:16:39,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:16:39,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:16:39,619 INFO L87 Difference]: Start difference. First operand 3327 states and 5889 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:40,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:40,568 INFO L93 Difference]: Finished difference Result 4994 states and 8645 transitions. [2023-12-20 11:16:40,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:16:40,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:40,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:40,579 INFO L225 Difference]: With dead ends: 4994 [2023-12-20 11:16:40,580 INFO L226 Difference]: Without dead ends: 3802 [2023-12-20 11:16:40,583 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 11:16:40,583 INFO L413 NwaCegarLoop]: 4141 mSDtfsCounter, 4837 mSDsluCounter, 12312 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4853 SdHoareTripleChecker+Valid, 16453 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:40,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4853 Valid, 16453 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 11:16:40,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2023-12-20 11:16:40,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3327. [2023-12-20 11:16:40,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3327 states, 3201 states have (on average 1.7778819119025304) internal successors, (5691), 3207 states have internal predecessors, (5691), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2023-12-20 11:16:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 5884 transitions. [2023-12-20 11:16:40,654 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 5884 transitions. Word has length 121 [2023-12-20 11:16:40,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:40,655 INFO L495 AbstractCegarLoop]: Abstraction has 3327 states and 5884 transitions. [2023-12-20 11:16:40,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:40,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 5884 transitions. [2023-12-20 11:16:40,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:40,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:40,656 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] [2023-12-20 11:16:40,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 11:16:40,657 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:40,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:40,657 INFO L85 PathProgramCache]: Analyzing trace with hash -308738320, now seen corresponding path program 1 times [2023-12-20 11:16:40,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:40,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284654225] [2023-12-20 11:16:40,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:40,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:40,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:40,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:40,782 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 11:16:40,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:40,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284654225] [2023-12-20 11:16:40,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284654225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:40,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:40,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:16:40,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080791925] [2023-12-20 11:16:40,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:40,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:16:40,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:40,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:16:40,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:16:40,784 INFO L87 Difference]: Start difference. First operand 3327 states and 5884 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:41,726 INFO L93 Difference]: Finished difference Result 4983 states and 8609 transitions. [2023-12-20 11:16:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:16:41,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:41,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:41,739 INFO L225 Difference]: With dead ends: 4983 [2023-12-20 11:16:41,739 INFO L226 Difference]: Without dead ends: 3791 [2023-12-20 11:16:41,743 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 11:16:41,744 INFO L413 NwaCegarLoop]: 4141 mSDtfsCounter, 4833 mSDsluCounter, 12312 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4849 SdHoareTripleChecker+Valid, 16453 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:41,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4849 Valid, 16453 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 11:16:41,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3791 states. [2023-12-20 11:16:41,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3791 to 3327. [2023-12-20 11:16:41,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3327 states, 3201 states have (on average 1.7763199000312402) internal successors, (5686), 3207 states have internal predecessors, (5686), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2023-12-20 11:16:41,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 5879 transitions. [2023-12-20 11:16:41,822 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 5879 transitions. Word has length 121 [2023-12-20 11:16:41,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:41,822 INFO L495 AbstractCegarLoop]: Abstraction has 3327 states and 5879 transitions. [2023-12-20 11:16:41,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:41,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 5879 transitions. [2023-12-20 11:16:41,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:41,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:41,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:16:41,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 11:16:41,824 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:41,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:41,824 INFO L85 PathProgramCache]: Analyzing trace with hash 722302578, now seen corresponding path program 1 times [2023-12-20 11:16:41,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:41,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872328302] [2023-12-20 11:16:41,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:41,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:41,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:41,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:41,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:41,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:41,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:41,958 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 11:16:41,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:41,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872328302] [2023-12-20 11:16:41,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872328302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:41,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:41,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:16:41,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217019447] [2023-12-20 11:16:41,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:41,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:16:41,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:41,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:16:41,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:16:41,959 INFO L87 Difference]: Start difference. First operand 3327 states and 5879 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:44,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:44,012 INFO L93 Difference]: Finished difference Result 6219 states and 10582 transitions. [2023-12-20 11:16:44,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:16:44,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:44,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:44,027 INFO L225 Difference]: With dead ends: 6219 [2023-12-20 11:16:44,027 INFO L226 Difference]: Without dead ends: 5027 [2023-12-20 11:16:44,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:16:44,031 INFO L413 NwaCegarLoop]: 4298 mSDtfsCounter, 5002 mSDsluCounter, 16941 mSDsCounter, 0 mSdLazyCounter, 2559 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5017 SdHoareTripleChecker+Valid, 21239 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:44,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5017 Valid, 21239 Invalid, 2614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2559 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 11:16:44,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2023-12-20 11:16:44,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 4276. [2023-12-20 11:16:44,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4054 states have (on average 1.735816477553034) internal successors, (7037), 4064 states have internal predecessors, (7037), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2023-12-20 11:16:44,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7388 transitions. [2023-12-20 11:16:44,124 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7388 transitions. Word has length 121 [2023-12-20 11:16:44,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:44,125 INFO L495 AbstractCegarLoop]: Abstraction has 4276 states and 7388 transitions. [2023-12-20 11:16:44,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:44,125 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7388 transitions. [2023-12-20 11:16:44,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:44,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:44,127 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] [2023-12-20 11:16:44,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 11:16:44,127 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:44,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:44,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1184100688, now seen corresponding path program 1 times [2023-12-20 11:16:44,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:44,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100320189] [2023-12-20 11:16:44,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:44,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:44,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:44,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:44,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:44,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:44,258 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 11:16:44,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:44,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100320189] [2023-12-20 11:16:44,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100320189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:44,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:44,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:16:44,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830882360] [2023-12-20 11:16:44,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:44,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:16:44,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:44,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:16:44,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:16:44,260 INFO L87 Difference]: Start difference. First operand 4276 states and 7388 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:45,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:45,306 INFO L93 Difference]: Finished difference Result 7177 states and 12134 transitions. [2023-12-20 11:16:45,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:16:45,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:45,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:45,327 INFO L225 Difference]: With dead ends: 7177 [2023-12-20 11:16:45,328 INFO L226 Difference]: Without dead ends: 5036 [2023-12-20 11:16:45,333 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 11:16:45,334 INFO L413 NwaCegarLoop]: 4141 mSDtfsCounter, 4724 mSDsluCounter, 16388 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4740 SdHoareTripleChecker+Valid, 20529 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:45,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4740 Valid, 20529 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 11:16:45,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5036 states. [2023-12-20 11:16:45,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5036 to 4276. [2023-12-20 11:16:45,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4054 states have (on average 1.7335964479526393) internal successors, (7028), 4064 states have internal predecessors, (7028), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2023-12-20 11:16:45,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7379 transitions. [2023-12-20 11:16:45,438 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7379 transitions. Word has length 121 [2023-12-20 11:16:45,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:45,438 INFO L495 AbstractCegarLoop]: Abstraction has 4276 states and 7379 transitions. [2023-12-20 11:16:45,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:45,438 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7379 transitions. [2023-12-20 11:16:45,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:45,440 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:45,440 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] [2023-12-20 11:16:45,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 11:16:45,440 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:45,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:45,441 INFO L85 PathProgramCache]: Analyzing trace with hash 416970418, now seen corresponding path program 1 times [2023-12-20 11:16:45,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:45,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045976074] [2023-12-20 11:16:45,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:45,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:45,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:45,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:45,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:45,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:45,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:45,587 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 11:16:45,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:45,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045976074] [2023-12-20 11:16:45,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045976074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:45,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:45,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:16:45,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866005692] [2023-12-20 11:16:45,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:45,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:16:45,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:45,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:16:45,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:16:45,589 INFO L87 Difference]: Start difference. First operand 4276 states and 7379 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:47,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:47,654 INFO L93 Difference]: Finished difference Result 9610 states and 16003 transitions. [2023-12-20 11:16:47,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:16:47,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:47,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:47,673 INFO L225 Difference]: With dead ends: 9610 [2023-12-20 11:16:47,673 INFO L226 Difference]: Without dead ends: 7469 [2023-12-20 11:16:47,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:16:47,681 INFO L413 NwaCegarLoop]: 4298 mSDtfsCounter, 4994 mSDsluCounter, 16941 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5009 SdHoareTripleChecker+Valid, 21239 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:47,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5009 Valid, 21239 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2521 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 11:16:47,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7469 states. [2023-12-20 11:16:47,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7469 to 6184. [2023-12-20 11:16:47,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6184 states, 5770 states have (on average 1.6863084922010398) internal successors, (9730), 5788 states have internal predecessors, (9730), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2023-12-20 11:16:47,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 10415 transitions. [2023-12-20 11:16:47,850 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 10415 transitions. Word has length 121 [2023-12-20 11:16:47,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:47,850 INFO L495 AbstractCegarLoop]: Abstraction has 6184 states and 10415 transitions. [2023-12-20 11:16:47,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:47,850 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 10415 transitions. [2023-12-20 11:16:47,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:47,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:47,853 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] [2023-12-20 11:16:47,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 11:16:47,853 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:47,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:47,854 INFO L85 PathProgramCache]: Analyzing trace with hash -639760784, now seen corresponding path program 1 times [2023-12-20 11:16:47,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:47,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827001770] [2023-12-20 11:16:47,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:47,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:47,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:47,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:47,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:47,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:47,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:47,978 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 11:16:47,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:47,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827001770] [2023-12-20 11:16:47,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827001770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:47,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:47,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:16:47,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908514891] [2023-12-20 11:16:47,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:47,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:16:47,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:47,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:16:47,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:16:47,980 INFO L87 Difference]: Start difference. First operand 6184 states and 10415 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:50,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:50,401 INFO L93 Difference]: Finished difference Result 18072 states and 29651 transitions. [2023-12-20 11:16:50,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:16:50,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:50,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:50,439 INFO L225 Difference]: With dead ends: 18072 [2023-12-20 11:16:50,439 INFO L226 Difference]: Without dead ends: 14023 [2023-12-20 11:16:50,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:16:50,456 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 5287 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 2498 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5311 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:50,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5311 Valid, 21232 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2498 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 11:16:50,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14023 states. [2023-12-20 11:16:50,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14023 to 9981. [2023-12-20 11:16:50,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9199 states have (on average 1.6453962387216001) internal successors, (15136), 9233 states have internal predecessors, (15136), 550 states have call successors, (550), 198 states have call predecessors, (550), 230 states have return successors, (825), 581 states have call predecessors, (825), 550 states have call successors, (825) [2023-12-20 11:16:50,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 16511 transitions. [2023-12-20 11:16:50,777 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 16511 transitions. Word has length 121 [2023-12-20 11:16:50,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:50,777 INFO L495 AbstractCegarLoop]: Abstraction has 9981 states and 16511 transitions. [2023-12-20 11:16:50,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 16511 transitions. [2023-12-20 11:16:50,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:50,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:50,782 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] [2023-12-20 11:16:50,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 11:16:50,783 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:50,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:50,783 INFO L85 PathProgramCache]: Analyzing trace with hash 711624434, now seen corresponding path program 1 times [2023-12-20 11:16:50,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:50,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018004523] [2023-12-20 11:16:50,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:50,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:50,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:50,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:50,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:50,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:50,927 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 11:16:50,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:50,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018004523] [2023-12-20 11:16:50,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018004523] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:50,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:50,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:16:50,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191028090] [2023-12-20 11:16:50,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:50,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:16:50,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:50,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:16:50,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:16:50,929 INFO L87 Difference]: Start difference. First operand 9981 states and 16511 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:53,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:53,556 INFO L93 Difference]: Finished difference Result 32883 states and 53741 transitions. [2023-12-20 11:16:53,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:16:53,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:53,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:53,620 INFO L225 Difference]: With dead ends: 32883 [2023-12-20 11:16:53,621 INFO L226 Difference]: Without dead ends: 25037 [2023-12-20 11:16:53,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:16:53,650 INFO L413 NwaCegarLoop]: 4189 mSDtfsCounter, 5120 mSDsluCounter, 16600 mSDsCounter, 0 mSdLazyCounter, 2636 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5134 SdHoareTripleChecker+Valid, 20789 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:53,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5134 Valid, 20789 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2636 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 11:16:53,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25037 states. [2023-12-20 11:16:54,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25037 to 17414. [2023-12-20 11:16:54,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17414 states, 15912 states have (on average 1.6165158371040724) internal successors, (25722), 15978 states have internal predecessors, (25722), 1046 states have call successors, (1046), 390 states have call predecessors, (1046), 454 states have return successors, (1839), 1109 states have call predecessors, (1839), 1046 states have call successors, (1839) [2023-12-20 11:16:54,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17414 states to 17414 states and 28607 transitions. [2023-12-20 11:16:54,330 INFO L78 Accepts]: Start accepts. Automaton has 17414 states and 28607 transitions. Word has length 121 [2023-12-20 11:16:54,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:54,330 INFO L495 AbstractCegarLoop]: Abstraction has 17414 states and 28607 transitions. [2023-12-20 11:16:54,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:54,330 INFO L276 IsEmpty]: Start isEmpty. Operand 17414 states and 28607 transitions. [2023-12-20 11:16:54,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:54,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:54,338 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] [2023-12-20 11:16:54,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 11:16:54,339 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:54,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:54,339 INFO L85 PathProgramCache]: Analyzing trace with hash -907350480, now seen corresponding path program 1 times [2023-12-20 11:16:54,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:54,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053161397] [2023-12-20 11:16:54,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:54,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:54,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:54,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:54,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:54,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:54,458 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 11:16:54,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:54,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053161397] [2023-12-20 11:16:54,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053161397] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:54,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:54,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:16:54,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347897819] [2023-12-20 11:16:54,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:54,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:16:54,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:54,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:16:54,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:16:54,460 INFO L87 Difference]: Start difference. First operand 17414 states and 28607 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:57,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:16:57,267 INFO L93 Difference]: Finished difference Result 61578 states and 100971 transitions. [2023-12-20 11:16:57,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:16:57,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:16:57,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:16:57,406 INFO L225 Difference]: With dead ends: 61578 [2023-12-20 11:16:57,406 INFO L226 Difference]: Without dead ends: 46299 [2023-12-20 11:16:57,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:16:57,458 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 5221 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5245 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 11:16:57,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5245 Valid, 21232 Invalid, 2525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 11:16:57,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46299 states. [2023-12-20 11:16:58,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46299 to 32439. [2023-12-20 11:16:58,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32439 states, 29529 states have (on average 1.598835043516543) internal successors, (47212), 29659 states have internal predecessors, (47212), 2006 states have call successors, (2006), 774 states have call predecessors, (2006), 902 states have return successors, (4321), 2133 states have call predecessors, (4321), 2006 states have call successors, (4321) [2023-12-20 11:16:58,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32439 states to 32439 states and 53539 transitions. [2023-12-20 11:16:58,654 INFO L78 Accepts]: Start accepts. Automaton has 32439 states and 53539 transitions. Word has length 121 [2023-12-20 11:16:58,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:16:58,655 INFO L495 AbstractCegarLoop]: Abstraction has 32439 states and 53539 transitions. [2023-12-20 11:16:58,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:16:58,655 INFO L276 IsEmpty]: Start isEmpty. Operand 32439 states and 53539 transitions. [2023-12-20 11:16:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:16:58,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:16:58,671 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] [2023-12-20 11:16:58,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 11:16:58,671 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:16:58,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:16:58,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1790859470, now seen corresponding path program 1 times [2023-12-20 11:16:58,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:16:58,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811456866] [2023-12-20 11:16:58,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:16:58,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:16:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:58,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:16:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:58,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:16:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:58,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:16:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:58,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:16:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:58,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:16:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:16:58,796 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 11:16:58,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:16:58,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811456866] [2023-12-20 11:16:58,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811456866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:16:58,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:16:58,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:16:58,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629289294] [2023-12-20 11:16:58,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:16:58,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:16:58,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:16:58,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:16:58,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:16:58,798 INFO L87 Difference]: Start difference. First operand 32439 states and 53539 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:17:02,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:17:02,526 INFO L93 Difference]: Finished difference Result 116759 states and 193853 transitions. [2023-12-20 11:17:02,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:17:02,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:17:02,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:17:02,930 INFO L225 Difference]: With dead ends: 116759 [2023-12-20 11:17:02,930 INFO L226 Difference]: Without dead ends: 86455 [2023-12-20 11:17:02,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:17:02,982 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 5030 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 2755 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5044 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:17:02,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5044 Valid, 21232 Invalid, 2812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2755 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 11:17:03,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86455 states. [2023-12-20 11:17:05,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86455 to 62617. [2023-12-20 11:17:05,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62617 states, 56955 states have (on average 1.5903081380036872) internal successors, (90576), 57213 states have internal predecessors, (90576), 3862 states have call successors, (3862), 1542 states have call predecessors, (3862), 1798 states have return successors, (10679), 4117 states have call predecessors, (10679), 3862 states have call successors, (10679) [2023-12-20 11:17:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62617 states to 62617 states and 105117 transitions. [2023-12-20 11:17:05,301 INFO L78 Accepts]: Start accepts. Automaton has 62617 states and 105117 transitions. Word has length 121 [2023-12-20 11:17:05,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:17:05,302 INFO L495 AbstractCegarLoop]: Abstraction has 62617 states and 105117 transitions. [2023-12-20 11:17:05,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:17:05,302 INFO L276 IsEmpty]: Start isEmpty. Operand 62617 states and 105117 transitions. [2023-12-20 11:17:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:17:05,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:17:05,333 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] [2023-12-20 11:17:05,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 11:17:05,333 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:17:05,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:17:05,334 INFO L85 PathProgramCache]: Analyzing trace with hash 563525812, now seen corresponding path program 1 times [2023-12-20 11:17:05,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:17:05,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473737731] [2023-12-20 11:17:05,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:17:05,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:17:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:05,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:17:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:05,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:17:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:17:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:05,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:17:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:05,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:17:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:05,458 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 11:17:05,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:17:05,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473737731] [2023-12-20 11:17:05,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473737731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:17:05,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:17:05,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:17:05,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362169141] [2023-12-20 11:17:05,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:17:05,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:17:05,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:17:05,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:17:05,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:17:05,460 INFO L87 Difference]: Start difference. First operand 62617 states and 105117 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:17:10,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:17:10,754 INFO L93 Difference]: Finished difference Result 226999 states and 384949 transitions. [2023-12-20 11:17:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:17:10,755 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:17:10,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:17:11,246 INFO L225 Difference]: With dead ends: 226999 [2023-12-20 11:17:11,246 INFO L226 Difference]: Without dead ends: 166517 [2023-12-20 11:17:11,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:17:11,366 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 5110 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5134 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:17:11,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5134 Valid, 21232 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 11:17:11,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166517 states. [2023-12-20 11:17:16,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166517 to 122970. [2023-12-20 11:17:16,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122970 states, 111932 states have (on average 1.586266661901869) internal successors, (177554), 112446 states have internal predecessors, (177554), 7446 states have call successors, (7446), 3078 states have call predecessors, (7446), 3590 states have return successors, (27641), 7957 states have call predecessors, (27641), 7446 states have call successors, (27641) [2023-12-20 11:17:16,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122970 states to 122970 states and 212641 transitions. [2023-12-20 11:17:16,703 INFO L78 Accepts]: Start accepts. Automaton has 122970 states and 212641 transitions. Word has length 121 [2023-12-20 11:17:16,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:17:16,704 INFO L495 AbstractCegarLoop]: Abstraction has 122970 states and 212641 transitions. [2023-12-20 11:17:16,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:17:16,704 INFO L276 IsEmpty]: Start isEmpty. Operand 122970 states and 212641 transitions. [2023-12-20 11:17:16,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:17:16,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:17:16,762 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] [2023-12-20 11:17:16,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 11:17:16,763 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:17:16,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:17:16,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1854378254, now seen corresponding path program 1 times [2023-12-20 11:17:16,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:17:16,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748411616] [2023-12-20 11:17:16,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:17:16,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:17:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:16,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:17:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:17,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:17:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:17,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:17:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:17,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:17:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:17,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:17:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:17,048 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 11:17:17,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:17:17,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748411616] [2023-12-20 11:17:17,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748411616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:17:17,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:17:17,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:17:17,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163485837] [2023-12-20 11:17:17,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:17:17,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:17:17,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:17:17,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:17:17,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:17:17,049 INFO L87 Difference]: Start difference. First operand 122970 states and 212641 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:17:26,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:17:26,036 INFO L93 Difference]: Finished difference Result 443638 states and 777979 transitions. [2023-12-20 11:17:26,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:17:26,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:17:26,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:17:27,329 INFO L225 Difference]: With dead ends: 443638 [2023-12-20 11:17:27,329 INFO L226 Difference]: Without dead ends: 322803 [2023-12-20 11:17:27,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:17:27,641 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 5010 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5024 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:17:27,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5024 Valid, 21232 Invalid, 2694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 11:17:27,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322803 states. [2023-12-20 11:17:37,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322803 to 243675. [2023-12-20 11:17:37,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243675 states, 222141 states have (on average 1.5846691965913542) internal successors, (352020), 223167 states have internal predecessors, (352020), 14358 states have call successors, (14358), 6150 states have call predecessors, (14358), 7174 states have return successors, (74431), 15381 states have call predecessors, (74431), 14358 states have call successors, (74431) [2023-12-20 11:17:38,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243675 states to 243675 states and 440809 transitions. [2023-12-20 11:17:38,804 INFO L78 Accepts]: Start accepts. Automaton has 243675 states and 440809 transitions. Word has length 121 [2023-12-20 11:17:38,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:17:38,804 INFO L495 AbstractCegarLoop]: Abstraction has 243675 states and 440809 transitions. [2023-12-20 11:17:38,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:17:38,805 INFO L276 IsEmpty]: Start isEmpty. Operand 243675 states and 440809 transitions. [2023-12-20 11:17:39,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-20 11:17:39,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:17:39,101 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] [2023-12-20 11:17:39,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 11:17:39,101 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:17:39,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:17:39,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1669855476, now seen corresponding path program 1 times [2023-12-20 11:17:39,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:17:39,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389492091] [2023-12-20 11:17:39,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:17:39,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:17:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:17:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 11:17:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:39,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 11:17:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 11:17:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-20 11:17:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:17:39,227 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 11:17:39,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:17:39,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389492091] [2023-12-20 11:17:39,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389492091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:17:39,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:17:39,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:17:39,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320410731] [2023-12-20 11:17:39,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:17:39,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:17:39,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:17:39,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:17:39,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:17:39,230 INFO L87 Difference]: Start difference. First operand 243675 states and 440809 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 11:17:55,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:17:55,651 INFO L93 Difference]: Finished difference Result 869237 states and 1603217 transitions. [2023-12-20 11:17:55,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:17:55,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 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 121 [2023-12-20 11:17:55,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:17:58,337 INFO L225 Difference]: With dead ends: 869237 [2023-12-20 11:17:58,337 INFO L226 Difference]: Without dead ends: 627697 [2023-12-20 11:17:59,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:17:59,146 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 5038 mSDsluCounter, 16936 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 2459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:17:59,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5062 Valid, 21232 Invalid, 2459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2401 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 11:17:59,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627697 states.