/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-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal84.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 16:38:48,281 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 16:38:48,343 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-25 16:38:48,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 16:38:48,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 16:38:48,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 16:38:48,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 16:38:48,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 16:38:48,376 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 16:38:48,379 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 16:38:48,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 16:38:48,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 16:38:48,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 16:38:48,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 16:38:48,381 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 16:38:48,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 16:38:48,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 16:38:48,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-25 16:38:48,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 16:38:48,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 16:38:48,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 16:38:48,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 16:38:48,383 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 16:38:48,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 16:38:48,383 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 16:38:48,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 16:38:48,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 16:38:48,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 16:38:48,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 16:38:48,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 16:38:48,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 16:38:48,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 16:38:48,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 16:38:48,385 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-25 16:38:48,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-25 16:38:48,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 16:38:48,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 16:38:48,386 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 16:38:48,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 16:38:48,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 16:38:48,386 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-25 16:38:48,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 16:38:48,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 16:38:48,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 16:38:48,601 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 16:38:48,601 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 16:38:48,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal84.c [2023-12-25 16:38:49,704 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 16:38:50,162 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 16:38:50,163 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal84.c [2023-12-25 16:38:50,218 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0e8ad07/b6f5d7b122e4482aa37bde16d633b9d4/FLAG66b87878c [2023-12-25 16:38:50,230 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe0e8ad07/b6f5d7b122e4482aa37bde16d633b9d4 [2023-12-25 16:38:50,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 16:38:50,234 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 16:38:50,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 16:38:50,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 16:38:50,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 16:38:50,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 04:38:50" (1/1) ... [2023-12-25 16:38:50,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf3b831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:50, skipping insertion in model container [2023-12-25 16:38:50,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 04:38:50" (1/1) ... [2023-12-25 16:38:50,401 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 16:38:50,670 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal84.c[1245,1258] [2023-12-25 16:38:51,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 16:38:51,897 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 16:38:51,907 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal84.c[1245,1258] [2023-12-25 16:38:52,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 16:38:52,887 INFO L206 MainTranslator]: Completed translation [2023-12-25 16:38:52,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52 WrapperNode [2023-12-25 16:38:52,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 16:38:52,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 16:38:52,890 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 16:38:52,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 16:38:52,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:38:53,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:38:56,863 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52337 [2023-12-25 16:38:56,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 16:38:56,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 16:38:56,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 16:38:56,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 16:38:56,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:38:56,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:38:57,865 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:38:58,488 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-12-25 16:38:58,489 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:38:58,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:38:59,466 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:38:59,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:38:59,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:38:59,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:39:00,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 16:39:00,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 16:39:00,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 16:39:00,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 16:39:00,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (1/1) ... [2023-12-25 16:39:00,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 16:39:00,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 16:39:00,857 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) [2023-12-25 16:39:00,907 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 [2023-12-25 16:39:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 16:39:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-25 16:39:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-25 16:39:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 16:39:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 16:39:03,233 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 16:39:03,234 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 16:39:29,418 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 16:39:30,219 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 16:39:30,219 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 16:39:30,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 04:39:30 BoogieIcfgContainer [2023-12-25 16:39:30,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 16:39:30,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 16:39:30,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 16:39:30,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 16:39:30,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 04:38:50" (1/3) ... [2023-12-25 16:39:30,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393cfe7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 04:39:30, skipping insertion in model container [2023-12-25 16:39:30,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:38:52" (2/3) ... [2023-12-25 16:39:30,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393cfe7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 04:39:30, skipping insertion in model container [2023-12-25 16:39:30,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 04:39:30" (3/3) ... [2023-12-25 16:39:30,229 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal84.c [2023-12-25 16:39:30,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 16:39:30,240 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 16:39:30,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 16:39:30,381 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;@1cfea2bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 16:39:30,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 16:39:30,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 10956 states, 10954 states have (on average 1.6669709695088553) internal successors, (18260), 10955 states have internal predecessors, (18260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:30,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2023-12-25 16:39:30,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:39:30,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:39:30,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:39:30,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:39:30,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1490394054, now seen corresponding path program 1 times [2023-12-25 16:39:30,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:39:30,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082185597] [2023-12-25 16:39:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:39:30,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:39:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:39:32,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:39:32,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:39:32,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082185597] [2023-12-25 16:39:32,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082185597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:39:32,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:39:32,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:39:32,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480599593] [2023-12-25 16:39:32,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:39:32,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 16:39:32,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:39:32,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 16:39:32,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:39:32,720 INFO L87 Difference]: Start difference. First operand has 10956 states, 10954 states have (on average 1.6669709695088553) internal successors, (18260), 10955 states have internal predecessors, (18260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:33,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:39:33,127 INFO L93 Difference]: Finished difference Result 21638 states and 36066 transitions. [2023-12-25 16:39:33,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 16:39:33,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 372 [2023-12-25 16:39:33,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:39:33,176 INFO L225 Difference]: With dead ends: 21638 [2023-12-25 16:39:33,176 INFO L226 Difference]: Without dead ends: 10956 [2023-12-25 16:39:33,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:39:33,200 INFO L413 NwaCegarLoop]: 18253 mSDtfsCounter, 1 mSDsluCounter, 36501 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54754 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 16:39:33,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 54754 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 16:39:33,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10956 states. [2023-12-25 16:39:33,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10956 to 10956. [2023-12-25 16:39:33,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10956 states, 10955 states have (on average 1.6666362391602008) internal successors, (18258), 10955 states have internal predecessors, (18258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:33,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10956 states to 10956 states and 18258 transitions. [2023-12-25 16:39:33,550 INFO L78 Accepts]: Start accepts. Automaton has 10956 states and 18258 transitions. Word has length 372 [2023-12-25 16:39:33,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:39:33,553 INFO L495 AbstractCegarLoop]: Abstraction has 10956 states and 18258 transitions. [2023-12-25 16:39:33,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:33,554 INFO L276 IsEmpty]: Start isEmpty. Operand 10956 states and 18258 transitions. [2023-12-25 16:39:33,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-12-25 16:39:33,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:39:33,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:39:33,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-25 16:39:33,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:39:33,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:39:33,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1044151753, now seen corresponding path program 1 times [2023-12-25 16:39:33,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:39:33,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686843977] [2023-12-25 16:39:33,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:39:33,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:39:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:39:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:39:34,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:39:34,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686843977] [2023-12-25 16:39:34,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686843977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:39:34,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:39:34,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:39:34,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195029996] [2023-12-25 16:39:34,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:39:34,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 16:39:34,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:39:34,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 16:39:34,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:39:34,434 INFO L87 Difference]: Start difference. First operand 10956 states and 18258 transitions. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:34,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:39:34,728 INFO L93 Difference]: Finished difference Result 21641 states and 36064 transitions. [2023-12-25 16:39:34,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 16:39:34,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 373 [2023-12-25 16:39:34,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:39:34,760 INFO L225 Difference]: With dead ends: 21641 [2023-12-25 16:39:34,760 INFO L226 Difference]: Without dead ends: 10959 [2023-12-25 16:39:34,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:39:34,776 INFO L413 NwaCegarLoop]: 18253 mSDtfsCounter, 1 mSDsluCounter, 36499 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54752 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 16:39:34,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 54752 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 16:39:34,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10959 states. [2023-12-25 16:39:34,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10959 to 10958. [2023-12-25 16:39:34,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10958 states, 10957 states have (on average 1.666514556904262) internal successors, (18260), 10957 states have internal predecessors, (18260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:35,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10958 states to 10958 states and 18260 transitions. [2023-12-25 16:39:35,021 INFO L78 Accepts]: Start accepts. Automaton has 10958 states and 18260 transitions. Word has length 373 [2023-12-25 16:39:35,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:39:35,022 INFO L495 AbstractCegarLoop]: Abstraction has 10958 states and 18260 transitions. [2023-12-25 16:39:35,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:35,022 INFO L276 IsEmpty]: Start isEmpty. Operand 10958 states and 18260 transitions. [2023-12-25 16:39:35,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-25 16:39:35,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:39:35,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:39:35,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-25 16:39:35,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:39:35,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:39:35,033 INFO L85 PathProgramCache]: Analyzing trace with hash 2093503028, now seen corresponding path program 1 times [2023-12-25 16:39:35,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:39:35,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537741807] [2023-12-25 16:39:35,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:39:35,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:39:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:39:36,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:39:36,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:39:36,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537741807] [2023-12-25 16:39:36,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537741807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:39:36,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:39:36,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:39:36,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843739873] [2023-12-25 16:39:36,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:39:36,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 16:39:36,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:39:36,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 16:39:36,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:39:36,304 INFO L87 Difference]: Start difference. First operand 10958 states and 18260 transitions. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:37,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:39:37,879 INFO L93 Difference]: Finished difference Result 32157 states and 53534 transitions. [2023-12-25 16:39:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 16:39:37,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 374 [2023-12-25 16:39:37,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:39:37,911 INFO L225 Difference]: With dead ends: 32157 [2023-12-25 16:39:37,911 INFO L226 Difference]: Without dead ends: 10958 [2023-12-25 16:39:37,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:39:37,938 INFO L413 NwaCegarLoop]: 18334 mSDtfsCounter, 17236 mSDsluCounter, 35862 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17236 SdHoareTripleChecker+Valid, 54196 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 16:39:37,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17236 Valid, 54196 Invalid, 1224 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [164 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 16:39:37,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10958 states. [2023-12-25 16:39:38,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10958 to 10958. [2023-12-25 16:39:38,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10958 states, 10957 states have (on average 1.6664232910468193) internal successors, (18259), 10957 states have internal predecessors, (18259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:38,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10958 states to 10958 states and 18259 transitions. [2023-12-25 16:39:38,245 INFO L78 Accepts]: Start accepts. Automaton has 10958 states and 18259 transitions. Word has length 374 [2023-12-25 16:39:38,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:39:38,245 INFO L495 AbstractCegarLoop]: Abstraction has 10958 states and 18259 transitions. [2023-12-25 16:39:38,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand 10958 states and 18259 transitions. [2023-12-25 16:39:38,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2023-12-25 16:39:38,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:39:38,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:39:38,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-25 16:39:38,249 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:39:38,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:39:38,249 INFO L85 PathProgramCache]: Analyzing trace with hash 683921845, now seen corresponding path program 1 times [2023-12-25 16:39:38,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:39:38,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390885142] [2023-12-25 16:39:38,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:39:38,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:39:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:39:39,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:39:39,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:39:39,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390885142] [2023-12-25 16:39:39,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390885142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:39:39,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:39:39,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 16:39:39,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915567434] [2023-12-25 16:39:39,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:39:39,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 16:39:39,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:39:39,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 16:39:39,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:39:39,190 INFO L87 Difference]: Start difference. First operand 10958 states and 18259 transitions. Second operand has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:40,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:39:40,243 INFO L93 Difference]: Finished difference Result 21734 states and 36212 transitions. [2023-12-25 16:39:40,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 16:39:40,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 375 [2023-12-25 16:39:40,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:39:40,263 INFO L225 Difference]: With dead ends: 21734 [2023-12-25 16:39:40,263 INFO L226 Difference]: Without dead ends: 10962 [2023-12-25 16:39:40,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 16:39:40,283 INFO L413 NwaCegarLoop]: 18245 mSDtfsCounter, 82 mSDsluCounter, 54003 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 72248 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-25 16:39:40,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 72248 Invalid, 775 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-25 16:39:40,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10962 states. [2023-12-25 16:39:40,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10962 to 10960. [2023-12-25 16:39:40,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10960 states, 10959 states have (on average 1.6663016698603887) internal successors, (18261), 10959 states have internal predecessors, (18261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:40,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10960 states to 10960 states and 18261 transitions. [2023-12-25 16:39:40,559 INFO L78 Accepts]: Start accepts. Automaton has 10960 states and 18261 transitions. Word has length 375 [2023-12-25 16:39:40,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:39:40,559 INFO L495 AbstractCegarLoop]: Abstraction has 10960 states and 18261 transitions. [2023-12-25 16:39:40,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.0) internal successors, (375), 5 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:40,560 INFO L276 IsEmpty]: Start isEmpty. Operand 10960 states and 18261 transitions. [2023-12-25 16:39:40,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-12-25 16:39:40,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:39:40,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:39:40,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-25 16:39:40,564 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:39:40,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:39:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash -899461894, now seen corresponding path program 1 times [2023-12-25 16:39:40,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:39:40,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91458529] [2023-12-25 16:39:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:39:40,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:39:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:39:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:39:41,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:39:41,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91458529] [2023-12-25 16:39:41,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91458529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:39:41,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:39:41,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 16:39:41,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117737067] [2023-12-25 16:39:41,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:39:41,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 16:39:41,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:39:41,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 16:39:41,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 16:39:41,505 INFO L87 Difference]: Start difference. First operand 10960 states and 18261 transitions. Second operand has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:44,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:39:44,048 INFO L93 Difference]: Finished difference Result 32385 states and 53956 transitions. [2023-12-25 16:39:44,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 16:39:44,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 376 [2023-12-25 16:39:44,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:39:44,074 INFO L225 Difference]: With dead ends: 32385 [2023-12-25 16:39:44,074 INFO L226 Difference]: Without dead ends: 21699 [2023-12-25 16:39:44,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 16:39:44,087 INFO L413 NwaCegarLoop]: 17699 mSDtfsCounter, 17786 mSDsluCounter, 71061 mSDsCounter, 0 mSdLazyCounter, 2831 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17786 SdHoareTripleChecker+Valid, 88760 SdHoareTripleChecker+Invalid, 2839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 16:39:44,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17786 Valid, 88760 Invalid, 2839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2831 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 16:39:44,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21699 states. [2023-12-25 16:39:44,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21699 to 11090. [2023-12-25 16:39:44,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11090 states, 11089 states have (on average 1.6661556497429886) internal successors, (18476), 11089 states have internal predecessors, (18476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:44,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11090 states to 11090 states and 18476 transitions. [2023-12-25 16:39:44,273 INFO L78 Accepts]: Start accepts. Automaton has 11090 states and 18476 transitions. Word has length 376 [2023-12-25 16:39:44,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:39:44,273 INFO L495 AbstractCegarLoop]: Abstraction has 11090 states and 18476 transitions. [2023-12-25 16:39:44,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.666666666666664) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:44,274 INFO L276 IsEmpty]: Start isEmpty. Operand 11090 states and 18476 transitions. [2023-12-25 16:39:44,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-12-25 16:39:44,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:39:44,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:39:44,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-25 16:39:44,277 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:39:44,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:39:44,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1149774823, now seen corresponding path program 1 times [2023-12-25 16:39:44,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:39:44,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274947923] [2023-12-25 16:39:44,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:39:44,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:39:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:39:45,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:39:45,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:39:45,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274947923] [2023-12-25 16:39:45,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274947923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:39:45,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:39:45,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 16:39:45,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363989732] [2023-12-25 16:39:45,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:39:45,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 16:39:45,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:39:45,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 16:39:45,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-25 16:39:45,556 INFO L87 Difference]: Start difference. First operand 11090 states and 18476 transitions. Second operand has 7 states, 7 states have (on average 53.857142857142854) internal successors, (377), 7 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:49,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:39:49,845 INFO L93 Difference]: Finished difference Result 43541 states and 72539 transitions. [2023-12-25 16:39:49,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 16:39:49,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.857142857142854) internal successors, (377), 7 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2023-12-25 16:39:49,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:39:49,881 INFO L225 Difference]: With dead ends: 43541 [2023-12-25 16:39:49,881 INFO L226 Difference]: Without dead ends: 32725 [2023-12-25 16:39:49,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-25 16:39:49,896 INFO L413 NwaCegarLoop]: 34658 mSDtfsCounter, 71593 mSDsluCounter, 103965 mSDsCounter, 0 mSdLazyCounter, 5590 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71593 SdHoareTripleChecker+Valid, 138623 SdHoareTripleChecker+Invalid, 5592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-25 16:39:49,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71593 Valid, 138623 Invalid, 5592 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 5590 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-25 16:39:49,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32725 states. [2023-12-25 16:39:50,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32725 to 11095. [2023-12-25 16:39:50,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11095 states, 11094 states have (on average 1.6659455561564809) internal successors, (18482), 11094 states have internal predecessors, (18482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:50,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11095 states to 11095 states and 18482 transitions. [2023-12-25 16:39:50,117 INFO L78 Accepts]: Start accepts. Automaton has 11095 states and 18482 transitions. Word has length 377 [2023-12-25 16:39:50,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:39:50,121 INFO L495 AbstractCegarLoop]: Abstraction has 11095 states and 18482 transitions. [2023-12-25 16:39:50,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.857142857142854) internal successors, (377), 7 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:50,122 INFO L276 IsEmpty]: Start isEmpty. Operand 11095 states and 18482 transitions. [2023-12-25 16:39:50,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-12-25 16:39:50,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:39:50,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:39:50,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-25 16:39:50,126 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:39:50,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:39:50,126 INFO L85 PathProgramCache]: Analyzing trace with hash -157367575, now seen corresponding path program 1 times [2023-12-25 16:39:50,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:39:50,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081161132] [2023-12-25 16:39:50,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:39:50,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:39:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:39:50,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:39:50,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:39:50,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081161132] [2023-12-25 16:39:50,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081161132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:39:50,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:39:50,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:39:50,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119147572] [2023-12-25 16:39:50,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:39:50,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 16:39:50,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:39:50,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 16:39:50,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:39:50,956 INFO L87 Difference]: Start difference. First operand 11095 states and 18482 transitions. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 4 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:52,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:39:52,388 INFO L93 Difference]: Finished difference Result 21920 states and 36514 transitions. [2023-12-25 16:39:52,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 16:39:52,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 4 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2023-12-25 16:39:52,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:39:52,435 INFO L225 Difference]: With dead ends: 21920 [2023-12-25 16:39:52,436 INFO L226 Difference]: Without dead ends: 11099 [2023-12-25 16:39:52,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:39:52,464 INFO L413 NwaCegarLoop]: 17530 mSDtfsCounter, 18023 mSDsluCounter, 35046 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18023 SdHoareTripleChecker+Valid, 52576 SdHoareTripleChecker+Invalid, 2188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 16:39:52,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18023 Valid, 52576 Invalid, 2188 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 16:39:52,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11099 states. [2023-12-25 16:39:52,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11099 to 11097. [2023-12-25 16:39:52,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11097 states, 11096 states have (on average 1.665825522710887) internal successors, (18484), 11096 states have internal predecessors, (18484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:52,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11097 states to 11097 states and 18484 transitions. [2023-12-25 16:39:52,664 INFO L78 Accepts]: Start accepts. Automaton has 11097 states and 18484 transitions. Word has length 377 [2023-12-25 16:39:52,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:39:52,664 INFO L495 AbstractCegarLoop]: Abstraction has 11097 states and 18484 transitions. [2023-12-25 16:39:52,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 4 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:52,665 INFO L276 IsEmpty]: Start isEmpty. Operand 11097 states and 18484 transitions. [2023-12-25 16:39:52,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-12-25 16:39:52,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:39:52,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:39:52,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-25 16:39:52,668 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:39:52,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:39:52,669 INFO L85 PathProgramCache]: Analyzing trace with hash 253242791, now seen corresponding path program 1 times [2023-12-25 16:39:52,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:39:52,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023613223] [2023-12-25 16:39:52,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:39:52,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:39:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:39:53,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:39:53,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:39:53,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023613223] [2023-12-25 16:39:53,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023613223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:39:53,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:39:53,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 16:39:53,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463558703] [2023-12-25 16:39:53,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:39:53,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 16:39:53,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:39:53,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 16:39:53,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 16:39:53,459 INFO L87 Difference]: Start difference. First operand 11097 states and 18484 transitions. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:53,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:39:53,587 INFO L93 Difference]: Finished difference Result 22168 states and 36922 transitions. [2023-12-25 16:39:53,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 16:39:53,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2023-12-25 16:39:53,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:39:53,598 INFO L225 Difference]: With dead ends: 22168 [2023-12-25 16:39:53,598 INFO L226 Difference]: Without dead ends: 11345 [2023-12-25 16:39:53,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 16:39:53,608 INFO L413 NwaCegarLoop]: 18462 mSDtfsCounter, 17797 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17797 SdHoareTripleChecker+Valid, 19128 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 16:39:53,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17797 Valid, 19128 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 16:39:53,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11345 states. [2023-12-25 16:39:53,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11345 to 11097. [2023-12-25 16:39:53,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11097 states, 11096 states have (on average 1.6656452775775055) internal successors, (18482), 11096 states have internal predecessors, (18482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11097 states to 11097 states and 18482 transitions. [2023-12-25 16:39:53,718 INFO L78 Accepts]: Start accepts. Automaton has 11097 states and 18482 transitions. Word has length 377 [2023-12-25 16:39:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:39:53,719 INFO L495 AbstractCegarLoop]: Abstraction has 11097 states and 18482 transitions. [2023-12-25 16:39:53,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:53,719 INFO L276 IsEmpty]: Start isEmpty. Operand 11097 states and 18482 transitions. [2023-12-25 16:39:53,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-12-25 16:39:53,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:39:53,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:39:53,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-25 16:39:53,776 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:39:53,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:39:53,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1851916854, now seen corresponding path program 1 times [2023-12-25 16:39:53,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:39:53,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576589440] [2023-12-25 16:39:53,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:39:53,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:39:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:39:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:39:54,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:39:54,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576589440] [2023-12-25 16:39:54,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576589440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:39:54,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:39:54,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 16:39:54,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615024110] [2023-12-25 16:39:54,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:39:54,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 16:39:54,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:39:54,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 16:39:54,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-25 16:39:54,976 INFO L87 Difference]: Start difference. First operand 11097 states and 18482 transitions. Second operand has 7 states, 7 states have (on average 54.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:59,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:39:59,256 INFO L93 Difference]: Finished difference Result 22176 states and 36930 transitions. [2023-12-25 16:39:59,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 16:39:59,257 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 54.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 378 [2023-12-25 16:39:59,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:39:59,308 INFO L225 Difference]: With dead ends: 22176 [2023-12-25 16:39:59,308 INFO L226 Difference]: Without dead ends: 11353 [2023-12-25 16:39:59,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-25 16:39:59,333 INFO L413 NwaCegarLoop]: 16397 mSDtfsCounter, 18205 mSDsluCounter, 33964 mSDsCounter, 0 mSdLazyCounter, 6373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18205 SdHoareTripleChecker+Valid, 50361 SdHoareTripleChecker+Invalid, 6373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-25 16:39:59,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18205 Valid, 50361 Invalid, 6373 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 6373 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-25 16:39:59,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11353 states. [2023-12-25 16:39:59,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11353 to 11101. [2023-12-25 16:39:59,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11101 states, 11100 states have (on average 1.6654054054054055) internal successors, (18486), 11100 states have internal predecessors, (18486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:59,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11101 states to 11101 states and 18486 transitions. [2023-12-25 16:39:59,518 INFO L78 Accepts]: Start accepts. Automaton has 11101 states and 18486 transitions. Word has length 378 [2023-12-25 16:39:59,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:39:59,519 INFO L495 AbstractCegarLoop]: Abstraction has 11101 states and 18486 transitions. [2023-12-25 16:39:59,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 54.0) internal successors, (378), 6 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:39:59,519 INFO L276 IsEmpty]: Start isEmpty. Operand 11101 states and 18486 transitions. [2023-12-25 16:39:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-12-25 16:39:59,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:39:59,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:39:59,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-25 16:39:59,522 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:39:59,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:39:59,522 INFO L85 PathProgramCache]: Analyzing trace with hash -279433868, now seen corresponding path program 1 times [2023-12-25 16:39:59,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:39:59,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336366024] [2023-12-25 16:39:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:39:59,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:39:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:00,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:00,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336366024] [2023-12-25 16:40:00,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336366024] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:00,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:00,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 16:40:00,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059785358] [2023-12-25 16:40:00,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:00,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 16:40:00,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:00,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 16:40:00,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:40:00,203 INFO L87 Difference]: Start difference. First operand 11101 states and 18486 transitions. Second operand has 5 states, 5 states have (on average 75.6) internal successors, (378), 5 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:00,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:40:00,645 INFO L93 Difference]: Finished difference Result 32723 states and 54498 transitions. [2023-12-25 16:40:00,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 16:40:00,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 75.6) internal successors, (378), 5 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 378 [2023-12-25 16:40:00,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:40:00,672 INFO L225 Difference]: With dead ends: 32723 [2023-12-25 16:40:00,672 INFO L226 Difference]: Without dead ends: 21896 [2023-12-25 16:40:00,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 16:40:00,687 INFO L413 NwaCegarLoop]: 36016 mSDtfsCounter, 35699 mSDsluCounter, 72688 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35699 SdHoareTripleChecker+Valid, 108704 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 16:40:00,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35699 Valid, 108704 Invalid, 58 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 16:40:00,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21896 states. [2023-12-25 16:40:00,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21896 to 11099. [2023-12-25 16:40:00,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11099 states, 11098 states have (on average 1.6653451072265273) internal successors, (18482), 11098 states have internal predecessors, (18482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:00,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11099 states to 11099 states and 18482 transitions. [2023-12-25 16:40:00,864 INFO L78 Accepts]: Start accepts. Automaton has 11099 states and 18482 transitions. Word has length 378 [2023-12-25 16:40:00,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:40:00,864 INFO L495 AbstractCegarLoop]: Abstraction has 11099 states and 18482 transitions. [2023-12-25 16:40:00,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.6) internal successors, (378), 5 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:00,865 INFO L276 IsEmpty]: Start isEmpty. Operand 11099 states and 18482 transitions. [2023-12-25 16:40:00,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-12-25 16:40:00,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:40:00,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:40:00,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-25 16:40:00,867 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:40:00,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:40:00,868 INFO L85 PathProgramCache]: Analyzing trace with hash 731583643, now seen corresponding path program 1 times [2023-12-25 16:40:00,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:40:00,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349624780] [2023-12-25 16:40:00,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:40:00,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:40:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:01,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:01,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:01,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349624780] [2023-12-25 16:40:01,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349624780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:01,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:01,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 16:40:01,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885729954] [2023-12-25 16:40:01,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:01,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 16:40:01,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:01,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 16:40:01,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 16:40:01,637 INFO L87 Difference]: Start difference. First operand 11099 states and 18482 transitions. Second operand has 6 states, 6 states have (on average 63.0) internal successors, (378), 5 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:04,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:40:04,692 INFO L93 Difference]: Finished difference Result 32611 states and 54311 transitions. [2023-12-25 16:40:04,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 16:40:04,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 63.0) internal successors, (378), 5 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 378 [2023-12-25 16:40:04,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:40:04,714 INFO L225 Difference]: With dead ends: 32611 [2023-12-25 16:40:04,714 INFO L226 Difference]: Without dead ends: 21786 [2023-12-25 16:40:04,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 16:40:04,729 INFO L413 NwaCegarLoop]: 34659 mSDtfsCounter, 35771 mSDsluCounter, 86823 mSDsCounter, 0 mSdLazyCounter, 4901 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35771 SdHoareTripleChecker+Valid, 121482 SdHoareTripleChecker+Invalid, 4902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 16:40:04,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35771 Valid, 121482 Invalid, 4902 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 4901 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 16:40:04,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21786 states. [2023-12-25 16:40:04,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21786 to 11233. [2023-12-25 16:40:04,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11233 states, 11232 states have (on average 1.66488603988604) internal successors, (18700), 11232 states have internal predecessors, (18700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:04,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11233 states to 11233 states and 18700 transitions. [2023-12-25 16:40:04,914 INFO L78 Accepts]: Start accepts. Automaton has 11233 states and 18700 transitions. Word has length 378 [2023-12-25 16:40:04,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:40:04,916 INFO L495 AbstractCegarLoop]: Abstraction has 11233 states and 18700 transitions. [2023-12-25 16:40:04,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.0) internal successors, (378), 5 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand 11233 states and 18700 transitions. [2023-12-25 16:40:04,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-12-25 16:40:04,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:40:04,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:40:04,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-25 16:40:04,920 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:40:04,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:40:04,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1634504221, now seen corresponding path program 1 times [2023-12-25 16:40:04,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:40:04,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858192560] [2023-12-25 16:40:04,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:40:04,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:40:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:07,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:07,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858192560] [2023-12-25 16:40:07,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858192560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:07,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:07,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 16:40:07,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449258988] [2023-12-25 16:40:07,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:07,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 16:40:07,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:07,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 16:40:07,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-25 16:40:07,362 INFO L87 Difference]: Start difference. First operand 11233 states and 18700 transitions. Second operand has 10 states, 10 states have (on average 37.8) internal successors, (378), 9 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:24,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:40:24,377 INFO L93 Difference]: Finished difference Result 44140 states and 73477 transitions. [2023-12-25 16:40:24,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 16:40:24,392 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 37.8) internal successors, (378), 9 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 378 [2023-12-25 16:40:24,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:40:24,424 INFO L225 Difference]: With dead ends: 44140 [2023-12-25 16:40:24,424 INFO L226 Difference]: Without dead ends: 33181 [2023-12-25 16:40:24,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2023-12-25 16:40:24,466 INFO L413 NwaCegarLoop]: 30793 mSDtfsCounter, 71315 mSDsluCounter, 154324 mSDsCounter, 0 mSdLazyCounter, 33215 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71315 SdHoareTripleChecker+Valid, 185117 SdHoareTripleChecker+Invalid, 33217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-25 16:40:24,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71315 Valid, 185117 Invalid, 33217 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2 Valid, 33215 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2023-12-25 16:40:24,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33181 states. [2023-12-25 16:40:24,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33181 to 11259. [2023-12-25 16:40:24,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11259 states, 11258 states have (on average 1.6645940664416414) internal successors, (18740), 11258 states have internal predecessors, (18740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:24,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11259 states to 11259 states and 18740 transitions. [2023-12-25 16:40:24,658 INFO L78 Accepts]: Start accepts. Automaton has 11259 states and 18740 transitions. Word has length 378 [2023-12-25 16:40:24,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:40:24,658 INFO L495 AbstractCegarLoop]: Abstraction has 11259 states and 18740 transitions. [2023-12-25 16:40:24,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 37.8) internal successors, (378), 9 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:24,659 INFO L276 IsEmpty]: Start isEmpty. Operand 11259 states and 18740 transitions. [2023-12-25 16:40:24,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-12-25 16:40:24,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:40:24,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:40:24,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-25 16:40:24,661 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:40:24,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:40:24,661 INFO L85 PathProgramCache]: Analyzing trace with hash -442832677, now seen corresponding path program 1 times [2023-12-25 16:40:24,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:40:24,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285515763] [2023-12-25 16:40:24,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:40:24,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:40:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:25,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:25,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:25,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285515763] [2023-12-25 16:40:25,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285515763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:25,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:25,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 16:40:25,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217706246] [2023-12-25 16:40:25,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:25,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 16:40:25,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:25,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 16:40:25,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-25 16:40:25,684 INFO L87 Difference]: Start difference. First operand 11259 states and 18740 transitions. Second operand has 9 states, 9 states have (on average 42.0) internal successors, (378), 8 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:27,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:40:27,277 INFO L93 Difference]: Finished difference Result 22249 states and 37034 transitions. [2023-12-25 16:40:27,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 16:40:27,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 42.0) internal successors, (378), 8 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 378 [2023-12-25 16:40:27,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:40:27,289 INFO L225 Difference]: With dead ends: 22249 [2023-12-25 16:40:27,290 INFO L226 Difference]: Without dead ends: 11264 [2023-12-25 16:40:27,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-25 16:40:27,306 INFO L413 NwaCegarLoop]: 17531 mSDtfsCounter, 35706 mSDsluCounter, 35749 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35706 SdHoareTripleChecker+Valid, 53280 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-25 16:40:27,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35706 Valid, 53280 Invalid, 2384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 2379 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-25 16:40:27,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11264 states. [2023-12-25 16:40:27,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11264 to 11109. [2023-12-25 16:40:27,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11109 states, 11108 states have (on average 1.6652862801584443) internal successors, (18498), 11108 states have internal predecessors, (18498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11109 states to 11109 states and 18498 transitions. [2023-12-25 16:40:27,419 INFO L78 Accepts]: Start accepts. Automaton has 11109 states and 18498 transitions. Word has length 378 [2023-12-25 16:40:27,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:40:27,419 INFO L495 AbstractCegarLoop]: Abstraction has 11109 states and 18498 transitions. [2023-12-25 16:40:27,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 42.0) internal successors, (378), 8 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:27,419 INFO L276 IsEmpty]: Start isEmpty. Operand 11109 states and 18498 transitions. [2023-12-25 16:40:27,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2023-12-25 16:40:27,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:40:27,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:40:27,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-25 16:40:27,422 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:40:27,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:40:27,422 INFO L85 PathProgramCache]: Analyzing trace with hash 534056863, now seen corresponding path program 1 times [2023-12-25 16:40:27,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:40:27,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178661785] [2023-12-25 16:40:27,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:40:27,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:40:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:28,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:28,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:28,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178661785] [2023-12-25 16:40:28,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178661785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:28,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:28,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 16:40:28,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401511959] [2023-12-25 16:40:28,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:28,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 16:40:28,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:28,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 16:40:28,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 16:40:28,172 INFO L87 Difference]: Start difference. First operand 11109 states and 18498 transitions. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:28,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:40:28,304 INFO L93 Difference]: Finished difference Result 22309 states and 37135 transitions. [2023-12-25 16:40:28,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 16:40:28,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 379 [2023-12-25 16:40:28,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:40:28,314 INFO L225 Difference]: With dead ends: 22309 [2023-12-25 16:40:28,314 INFO L226 Difference]: Without dead ends: 11474 [2023-12-25 16:40:28,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 16:40:28,324 INFO L413 NwaCegarLoop]: 18600 mSDtfsCounter, 17794 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17794 SdHoareTripleChecker+Valid, 19407 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 16:40:28,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17794 Valid, 19407 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 16:40:28,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11474 states. [2023-12-25 16:40:28,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11474 to 11109. [2023-12-25 16:40:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11109 states, 11108 states have (on average 1.6651962549513863) internal successors, (18497), 11108 states have internal predecessors, (18497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:28,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11109 states to 11109 states and 18497 transitions. [2023-12-25 16:40:28,440 INFO L78 Accepts]: Start accepts. Automaton has 11109 states and 18497 transitions. Word has length 379 [2023-12-25 16:40:28,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:40:28,441 INFO L495 AbstractCegarLoop]: Abstraction has 11109 states and 18497 transitions. [2023-12-25 16:40:28,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:28,441 INFO L276 IsEmpty]: Start isEmpty. Operand 11109 states and 18497 transitions. [2023-12-25 16:40:28,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-25 16:40:28,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:40:28,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:40:28,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-25 16:40:28,445 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:40:28,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:40:28,445 INFO L85 PathProgramCache]: Analyzing trace with hash -714070340, now seen corresponding path program 1 times [2023-12-25 16:40:28,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:40:28,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382611599] [2023-12-25 16:40:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:40:28,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:40:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:29,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:29,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:29,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382611599] [2023-12-25 16:40:29,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382611599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:29,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:29,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 16:40:29,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811512522] [2023-12-25 16:40:29,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:29,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 16:40:29,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:29,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 16:40:29,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 16:40:29,163 INFO L87 Difference]: Start difference. First operand 11109 states and 18497 transitions. Second operand has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:33,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:40:33,115 INFO L93 Difference]: Finished difference Result 22313 states and 37139 transitions. [2023-12-25 16:40:33,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 16:40:33,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 380 [2023-12-25 16:40:33,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:40:33,127 INFO L225 Difference]: With dead ends: 22313 [2023-12-25 16:40:33,127 INFO L226 Difference]: Without dead ends: 11478 [2023-12-25 16:40:33,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 16:40:33,138 INFO L413 NwaCegarLoop]: 16502 mSDtfsCounter, 18549 mSDsluCounter, 33696 mSDsCounter, 0 mSdLazyCounter, 6424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18549 SdHoareTripleChecker+Valid, 50198 SdHoareTripleChecker+Invalid, 6425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-25 16:40:33,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18549 Valid, 50198 Invalid, 6425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 6424 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-25 16:40:33,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11478 states. [2023-12-25 16:40:33,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11478 to 11111. [2023-12-25 16:40:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11111 states, 11110 states have (on average 1.665076507650765) internal successors, (18499), 11110 states have internal predecessors, (18499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:33,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11111 states to 11111 states and 18499 transitions. [2023-12-25 16:40:33,285 INFO L78 Accepts]: Start accepts. Automaton has 11111 states and 18499 transitions. Word has length 380 [2023-12-25 16:40:33,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:40:33,286 INFO L495 AbstractCegarLoop]: Abstraction has 11111 states and 18499 transitions. [2023-12-25 16:40:33,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:33,286 INFO L276 IsEmpty]: Start isEmpty. Operand 11111 states and 18499 transitions. [2023-12-25 16:40:33,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-25 16:40:33,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:40:33,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:40:33,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-25 16:40:33,291 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:40:33,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:40:33,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1195150598, now seen corresponding path program 1 times [2023-12-25 16:40:33,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:40:33,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465703575] [2023-12-25 16:40:33,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:40:33,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:40:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:33,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:33,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465703575] [2023-12-25 16:40:33,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465703575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:33,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:33,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:40:33,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954226903] [2023-12-25 16:40:33,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:33,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 16:40:33,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:33,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 16:40:33,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:40:33,775 INFO L87 Difference]: Start difference. First operand 11111 states and 18499 transitions. Second operand has 5 states, 5 states have (on average 76.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:37,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:40:37,488 INFO L93 Difference]: Finished difference Result 21950 states and 36545 transitions. [2023-12-25 16:40:37,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 16:40:37,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 380 [2023-12-25 16:40:37,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:40:37,505 INFO L225 Difference]: With dead ends: 21950 [2023-12-25 16:40:37,505 INFO L226 Difference]: Without dead ends: 11113 [2023-12-25 16:40:37,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:40:37,517 INFO L413 NwaCegarLoop]: 16208 mSDtfsCounter, 17985 mSDsluCounter, 32413 mSDsCounter, 0 mSdLazyCounter, 6129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17985 SdHoareTripleChecker+Valid, 48621 SdHoareTripleChecker+Invalid, 6131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-25 16:40:37,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17985 Valid, 48621 Invalid, 6131 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 6129 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-25 16:40:37,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11113 states. [2023-12-25 16:40:37,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11113 to 11112. [2023-12-25 16:40:37,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11112 states, 11111 states have (on average 1.6650166501665016) internal successors, (18500), 11111 states have internal predecessors, (18500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:37,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11112 states to 11112 states and 18500 transitions. [2023-12-25 16:40:37,666 INFO L78 Accepts]: Start accepts. Automaton has 11112 states and 18500 transitions. Word has length 380 [2023-12-25 16:40:37,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:40:37,667 INFO L495 AbstractCegarLoop]: Abstraction has 11112 states and 18500 transitions. [2023-12-25 16:40:37,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:37,667 INFO L276 IsEmpty]: Start isEmpty. Operand 11112 states and 18500 transitions. [2023-12-25 16:40:37,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-25 16:40:37,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:40:37,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:40:37,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-25 16:40:37,671 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:40:37,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:40:37,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2061232124, now seen corresponding path program 1 times [2023-12-25 16:40:37,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:40:37,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10096835] [2023-12-25 16:40:37,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:40:37,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:40:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:38,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:38,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10096835] [2023-12-25 16:40:38,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10096835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:38,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:38,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 16:40:38,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636741849] [2023-12-25 16:40:38,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:38,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 16:40:38,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:38,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 16:40:38,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:40:38,532 INFO L87 Difference]: Start difference. First operand 11112 states and 18500 transitions. Second operand has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:39,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:40:39,139 INFO L93 Difference]: Finished difference Result 33008 states and 54937 transitions. [2023-12-25 16:40:39,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 16:40:39,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 380 [2023-12-25 16:40:39,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:40:39,166 INFO L225 Difference]: With dead ends: 33008 [2023-12-25 16:40:39,166 INFO L226 Difference]: Without dead ends: 22170 [2023-12-25 16:40:39,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 16:40:39,182 INFO L413 NwaCegarLoop]: 36022 mSDtfsCounter, 35768 mSDsluCounter, 72823 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35768 SdHoareTripleChecker+Valid, 108845 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 16:40:39,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35768 Valid, 108845 Invalid, 70 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 16:40:39,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22170 states. [2023-12-25 16:40:39,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22170 to 11225. [2023-12-25 16:40:39,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11225 states, 11224 states have (on average 1.664112615823236) internal successors, (18678), 11224 states have internal predecessors, (18678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:39,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11225 states to 11225 states and 18678 transitions. [2023-12-25 16:40:39,379 INFO L78 Accepts]: Start accepts. Automaton has 11225 states and 18678 transitions. Word has length 380 [2023-12-25 16:40:39,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:40:39,380 INFO L495 AbstractCegarLoop]: Abstraction has 11225 states and 18678 transitions. [2023-12-25 16:40:39,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:39,381 INFO L276 IsEmpty]: Start isEmpty. Operand 11225 states and 18678 transitions. [2023-12-25 16:40:39,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-25 16:40:39,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:40:39,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:40:39,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-25 16:40:39,384 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:40:39,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:40:39,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1355708077, now seen corresponding path program 1 times [2023-12-25 16:40:39,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:40:39,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236901906] [2023-12-25 16:40:39,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:40:39,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:40:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:40,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:40,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:40,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236901906] [2023-12-25 16:40:40,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236901906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:40,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:40,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 16:40:40,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287295565] [2023-12-25 16:40:40,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:40,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 16:40:40,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:40,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 16:40:40,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-25 16:40:40,659 INFO L87 Difference]: Start difference. First operand 11225 states and 18678 transitions. Second operand has 8 states, 8 states have (on average 47.5) internal successors, (380), 7 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:44,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:40:44,614 INFO L93 Difference]: Finished difference Result 44037 states and 73276 transitions. [2023-12-25 16:40:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-25 16:40:44,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 47.5) internal successors, (380), 7 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 380 [2023-12-25 16:40:44,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:40:44,652 INFO L225 Difference]: With dead ends: 44037 [2023-12-25 16:40:44,652 INFO L226 Difference]: Without dead ends: 33086 [2023-12-25 16:40:44,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-25 16:40:44,669 INFO L413 NwaCegarLoop]: 35078 mSDtfsCounter, 71288 mSDsluCounter, 122905 mSDsCounter, 0 mSdLazyCounter, 6983 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71288 SdHoareTripleChecker+Valid, 157983 SdHoareTripleChecker+Invalid, 6984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-25 16:40:44,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71288 Valid, 157983 Invalid, 6984 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 6983 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-25 16:40:44,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33086 states. [2023-12-25 16:40:44,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33086 to 11368. [2023-12-25 16:40:44,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11368 states, 11367 states have (on average 1.6634116301574733) internal successors, (18908), 11367 states have internal predecessors, (18908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11368 states to 11368 states and 18908 transitions. [2023-12-25 16:40:44,855 INFO L78 Accepts]: Start accepts. Automaton has 11368 states and 18908 transitions. Word has length 380 [2023-12-25 16:40:44,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:40:44,855 INFO L495 AbstractCegarLoop]: Abstraction has 11368 states and 18908 transitions. [2023-12-25 16:40:44,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 47.5) internal successors, (380), 7 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 11368 states and 18908 transitions. [2023-12-25 16:40:44,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-25 16:40:44,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:40:44,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:40:44,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-25 16:40:44,858 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:40:44,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:40:44,858 INFO L85 PathProgramCache]: Analyzing trace with hash 689813307, now seen corresponding path program 1 times [2023-12-25 16:40:44,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:40:44,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428794359] [2023-12-25 16:40:44,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:40:44,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:40:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:45,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:45,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428794359] [2023-12-25 16:40:45,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428794359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:45,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:45,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 16:40:45,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276585129] [2023-12-25 16:40:45,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:45,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 16:40:45,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:45,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 16:40:45,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:40:45,614 INFO L87 Difference]: Start difference. First operand 11368 states and 18908 transitions. Second operand has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:46,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:40:46,936 INFO L93 Difference]: Finished difference Result 22475 states and 37378 transitions. [2023-12-25 16:40:46,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 16:40:46,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 380 [2023-12-25 16:40:46,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:40:46,948 INFO L225 Difference]: With dead ends: 22475 [2023-12-25 16:40:46,948 INFO L226 Difference]: Without dead ends: 11381 [2023-12-25 16:40:46,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 16:40:46,957 INFO L413 NwaCegarLoop]: 17528 mSDtfsCounter, 18212 mSDsluCounter, 35014 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18212 SdHoareTripleChecker+Valid, 52542 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-25 16:40:46,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18212 Valid, 52542 Invalid, 2211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-25 16:40:46,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11381 states. [2023-12-25 16:40:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11381 to 11376. [2023-12-25 16:40:47,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11376 states, 11375 states have (on average 1.6632087912087912) internal successors, (18919), 11375 states have internal predecessors, (18919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:47,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11376 states to 11376 states and 18919 transitions. [2023-12-25 16:40:47,066 INFO L78 Accepts]: Start accepts. Automaton has 11376 states and 18919 transitions. Word has length 380 [2023-12-25 16:40:47,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:40:47,066 INFO L495 AbstractCegarLoop]: Abstraction has 11376 states and 18919 transitions. [2023-12-25 16:40:47,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:47,066 INFO L276 IsEmpty]: Start isEmpty. Operand 11376 states and 18919 transitions. [2023-12-25 16:40:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-25 16:40:47,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:40:47,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:40:47,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-25 16:40:47,069 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:40:47,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:40:47,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1028100857, now seen corresponding path program 1 times [2023-12-25 16:40:47,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:40:47,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864815839] [2023-12-25 16:40:47,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:40:47,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:40:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:47,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:47,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864815839] [2023-12-25 16:40:47,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864815839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:47,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:47,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:40:47,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003553042] [2023-12-25 16:40:47,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:47,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 16:40:47,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:47,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 16:40:47,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:40:47,713 INFO L87 Difference]: Start difference. First operand 11376 states and 18919 transitions. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:47,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:40:47,960 INFO L93 Difference]: Finished difference Result 22479 states and 37383 transitions. [2023-12-25 16:40:47,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 16:40:47,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 380 [2023-12-25 16:40:47,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:40:47,970 INFO L225 Difference]: With dead ends: 22479 [2023-12-25 16:40:47,970 INFO L226 Difference]: Without dead ends: 11377 [2023-12-25 16:40:47,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:40:47,979 INFO L413 NwaCegarLoop]: 18248 mSDtfsCounter, 1 mSDsluCounter, 36451 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54699 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 16:40:47,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 54699 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 16:40:47,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11377 states. [2023-12-25 16:40:48,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11377 to 11374. [2023-12-25 16:40:48,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11374 states, 11373 states have (on average 1.6630616372109381) internal successors, (18914), 11373 states have internal predecessors, (18914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:48,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11374 states to 11374 states and 18914 transitions. [2023-12-25 16:40:48,090 INFO L78 Accepts]: Start accepts. Automaton has 11374 states and 18914 transitions. Word has length 380 [2023-12-25 16:40:48,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:40:48,090 INFO L495 AbstractCegarLoop]: Abstraction has 11374 states and 18914 transitions. [2023-12-25 16:40:48,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand 11374 states and 18914 transitions. [2023-12-25 16:40:48,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2023-12-25 16:40:48,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:40:48,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:40:48,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-25 16:40:48,094 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:40:48,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:40:48,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1232426411, now seen corresponding path program 1 times [2023-12-25 16:40:48,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:40:48,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7862642] [2023-12-25 16:40:48,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:40:48,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:40:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:40:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:40:49,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:40:49,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7862642] [2023-12-25 16:40:49,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7862642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:40:49,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:40:49,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 16:40:49,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698428062] [2023-12-25 16:40:49,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:40:49,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 16:40:49,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:40:49,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 16:40:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 16:40:49,016 INFO L87 Difference]: Start difference. First operand 11374 states and 18914 transitions. Second operand has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:40:53,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 16:40:58,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 16:41:02,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 16:41:02,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:41:02,954 INFO L93 Difference]: Finished difference Result 34264 states and 56941 transitions. [2023-12-25 16:41:02,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 16:41:02,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 380 [2023-12-25 16:41:02,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:41:02,976 INFO L225 Difference]: With dead ends: 34264 [2023-12-25 16:41:02,976 INFO L226 Difference]: Without dead ends: 23164 [2023-12-25 16:41:02,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-25 16:41:02,990 INFO L413 NwaCegarLoop]: 18597 mSDtfsCounter, 89509 mSDsluCounter, 54442 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89509 SdHoareTripleChecker+Valid, 73039 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-12-25 16:41:02,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89509 Valid, 73039 Invalid, 417 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2023-12-25 16:41:03,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23164 states. [2023-12-25 16:41:03,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23164 to 12065. [2023-12-25 16:41:03,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12065 states, 12064 states have (on average 1.6599801061007957) internal successors, (20026), 12064 states have internal predecessors, (20026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:03,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12065 states to 12065 states and 20026 transitions. [2023-12-25 16:41:03,297 INFO L78 Accepts]: Start accepts. Automaton has 12065 states and 20026 transitions. Word has length 380 [2023-12-25 16:41:03,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:41:03,297 INFO L495 AbstractCegarLoop]: Abstraction has 12065 states and 20026 transitions. [2023-12-25 16:41:03,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:03,298 INFO L276 IsEmpty]: Start isEmpty. Operand 12065 states and 20026 transitions. [2023-12-25 16:41:03,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2023-12-25 16:41:03,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:41:03,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:41:03,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-25 16:41:03,300 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:41:03,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:41:03,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2049395918, now seen corresponding path program 1 times [2023-12-25 16:41:03,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:41:03,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363113787] [2023-12-25 16:41:03,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:41:03,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:41:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:41:04,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:41:04,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:41:04,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363113787] [2023-12-25 16:41:04,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363113787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:41:04,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:41:04,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 16:41:04,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014870269] [2023-12-25 16:41:04,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:41:04,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 16:41:04,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:41:04,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 16:41:04,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 16:41:04,162 INFO L87 Difference]: Start difference. First operand 12065 states and 20026 transitions. Second operand has 8 states, 8 states have (on average 47.625) internal successors, (381), 7 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:09,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 16:41:14,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 16:41:16,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 16:41:17,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:41:17,714 INFO L93 Difference]: Finished difference Result 45357 states and 75388 transitions. [2023-12-25 16:41:17,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 16:41:17,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 47.625) internal successors, (381), 7 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 381 [2023-12-25 16:41:17,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:41:17,760 INFO L225 Difference]: With dead ends: 45357 [2023-12-25 16:41:17,760 INFO L226 Difference]: Without dead ends: 34257 [2023-12-25 16:41:17,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-12-25 16:41:17,774 INFO L413 NwaCegarLoop]: 18599 mSDtfsCounter, 177625 mSDsluCounter, 91629 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177625 SdHoareTripleChecker+Valid, 110228 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-12-25 16:41:17,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177625 Valid, 110228 Invalid, 643 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 641 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2023-12-25 16:41:17,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34257 states. [2023-12-25 16:41:17,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34257 to 12068. [2023-12-25 16:41:17,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12068 states, 12067 states have (on average 1.6598988978205023) internal successors, (20030), 12067 states have internal predecessors, (20030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:17,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12068 states to 12068 states and 20030 transitions. [2023-12-25 16:41:17,979 INFO L78 Accepts]: Start accepts. Automaton has 12068 states and 20030 transitions. Word has length 381 [2023-12-25 16:41:17,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:41:17,980 INFO L495 AbstractCegarLoop]: Abstraction has 12068 states and 20030 transitions. [2023-12-25 16:41:17,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 47.625) internal successors, (381), 7 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:17,980 INFO L276 IsEmpty]: Start isEmpty. Operand 12068 states and 20030 transitions. [2023-12-25 16:41:17,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2023-12-25 16:41:17,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:41:17,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:41:17,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-25 16:41:17,982 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:41:17,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:41:17,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1656368908, now seen corresponding path program 1 times [2023-12-25 16:41:17,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:41:17,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601268662] [2023-12-25 16:41:17,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:41:17,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:41:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:41:19,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:41:19,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:41:19,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601268662] [2023-12-25 16:41:19,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601268662] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:41:19,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:41:19,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 16:41:19,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980423049] [2023-12-25 16:41:19,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:41:19,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 16:41:19,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:41:19,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 16:41:19,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-25 16:41:19,370 INFO L87 Difference]: Start difference. First operand 12068 states and 20030 transitions. Second operand has 9 states, 9 states have (on average 42.333333333333336) internal successors, (381), 8 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:23,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 16:41:29,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 16:41:34,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 16:41:38,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 16:41:42,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-25 16:41:42,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:41:42,627 INFO L93 Difference]: Finished difference Result 45358 states and 75390 transitions. [2023-12-25 16:41:42,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 16:41:42,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 42.333333333333336) internal successors, (381), 8 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 381 [2023-12-25 16:41:42,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:41:42,679 INFO L225 Difference]: With dead ends: 45358 [2023-12-25 16:41:42,679 INFO L226 Difference]: Without dead ends: 34258 [2023-12-25 16:41:42,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2023-12-25 16:41:42,701 INFO L413 NwaCegarLoop]: 36252 mSDtfsCounter, 125086 mSDsluCounter, 128152 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125086 SdHoareTripleChecker+Valid, 164404 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2023-12-25 16:41:42,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125086 Valid, 164404 Invalid, 1114 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 1109 Invalid, 4 Unknown, 0 Unchecked, 22.0s Time] [2023-12-25 16:41:42,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34258 states. [2023-12-25 16:41:42,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34258 to 12071. [2023-12-25 16:41:42,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12071 states, 12070 states have (on average 1.659817729908865) internal successors, (20034), 12070 states have internal predecessors, (20034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:42,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12071 states to 12071 states and 20034 transitions. [2023-12-25 16:41:42,941 INFO L78 Accepts]: Start accepts. Automaton has 12071 states and 20034 transitions. Word has length 381 [2023-12-25 16:41:42,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:41:42,942 INFO L495 AbstractCegarLoop]: Abstraction has 12071 states and 20034 transitions. [2023-12-25 16:41:42,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 42.333333333333336) internal successors, (381), 8 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:42,942 INFO L276 IsEmpty]: Start isEmpty. Operand 12071 states and 20034 transitions. [2023-12-25 16:41:42,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2023-12-25 16:41:42,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:41:42,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:41:42,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-25 16:41:42,944 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:41:42,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:41:42,944 INFO L85 PathProgramCache]: Analyzing trace with hash -863591026, now seen corresponding path program 1 times [2023-12-25 16:41:42,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:41:42,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089858366] [2023-12-25 16:41:42,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:41:42,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:41:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:41:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:41:44,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:41:44,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089858366] [2023-12-25 16:41:44,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089858366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:41:44,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:41:44,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 16:41:44,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431215260] [2023-12-25 16:41:44,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:41:44,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 16:41:44,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:41:44,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 16:41:44,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 16:41:44,693 INFO L87 Difference]: Start difference. First operand 12071 states and 20034 transitions. Second operand has 8 states, 8 states have (on average 47.625) internal successors, (381), 8 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:48,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:41:48,357 INFO L93 Difference]: Finished difference Result 46544 states and 77268 transitions. [2023-12-25 16:41:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 16:41:48,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 47.625) internal successors, (381), 8 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 381 [2023-12-25 16:41:48,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:41:48,400 INFO L225 Difference]: With dead ends: 46544 [2023-12-25 16:41:48,400 INFO L226 Difference]: Without dead ends: 35172 [2023-12-25 16:41:48,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-12-25 16:41:48,420 INFO L413 NwaCegarLoop]: 17672 mSDtfsCounter, 71537 mSDsluCounter, 88200 mSDsCounter, 0 mSdLazyCounter, 4669 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71537 SdHoareTripleChecker+Valid, 105872 SdHoareTripleChecker+Invalid, 4670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-25 16:41:48,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71537 Valid, 105872 Invalid, 4670 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 4669 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-25 16:41:48,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35172 states. [2023-12-25 16:41:48,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35172 to 12413. [2023-12-25 16:41:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12413 states, 12412 states have (on average 1.6566226232678054) internal successors, (20562), 12412 states have internal predecessors, (20562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12413 states to 12413 states and 20562 transitions. [2023-12-25 16:41:48,648 INFO L78 Accepts]: Start accepts. Automaton has 12413 states and 20562 transitions. Word has length 381 [2023-12-25 16:41:48,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:41:48,648 INFO L495 AbstractCegarLoop]: Abstraction has 12413 states and 20562 transitions. [2023-12-25 16:41:48,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 47.625) internal successors, (381), 8 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:48,649 INFO L276 IsEmpty]: Start isEmpty. Operand 12413 states and 20562 transitions. [2023-12-25 16:41:48,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2023-12-25 16:41:48,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:41:48,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:41:48,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-25 16:41:48,651 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:41:48,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:41:48,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1167049289, now seen corresponding path program 1 times [2023-12-25 16:41:48,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:41:48,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910369983] [2023-12-25 16:41:48,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:41:48,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:41:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:41:50,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:41:50,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:41:50,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910369983] [2023-12-25 16:41:50,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910369983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:41:50,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:41:50,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 16:41:50,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700850360] [2023-12-25 16:41:50,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:41:50,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 16:41:50,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:41:50,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 16:41:50,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 16:41:50,064 INFO L87 Difference]: Start difference. First operand 12413 states and 20562 transitions. Second operand has 8 states, 8 states have (on average 47.75) internal successors, (382), 8 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:54,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:41:54,721 INFO L93 Difference]: Finished difference Result 46691 states and 77449 transitions. [2023-12-25 16:41:54,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 16:41:54,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 47.75) internal successors, (382), 8 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 382 [2023-12-25 16:41:54,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:41:54,759 INFO L225 Difference]: With dead ends: 46691 [2023-12-25 16:41:54,759 INFO L226 Difference]: Without dead ends: 35367 [2023-12-25 16:41:54,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-12-25 16:41:54,777 INFO L413 NwaCegarLoop]: 34630 mSDtfsCounter, 71478 mSDsluCounter, 156048 mSDsCounter, 0 mSdLazyCounter, 7701 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71478 SdHoareTripleChecker+Valid, 190678 SdHoareTripleChecker+Invalid, 7702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-25 16:41:54,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71478 Valid, 190678 Invalid, 7702 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 7701 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-25 16:41:54,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35367 states. [2023-12-25 16:41:54,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35367 to 12989. [2023-12-25 16:41:54,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12989 states, 12988 states have (on average 1.6521404373267632) internal successors, (21458), 12988 states have internal predecessors, (21458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12989 states to 12989 states and 21458 transitions. [2023-12-25 16:41:55,142 INFO L78 Accepts]: Start accepts. Automaton has 12989 states and 21458 transitions. Word has length 382 [2023-12-25 16:41:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:41:55,142 INFO L495 AbstractCegarLoop]: Abstraction has 12989 states and 21458 transitions. [2023-12-25 16:41:55,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 47.75) internal successors, (382), 8 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:41:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 12989 states and 21458 transitions. [2023-12-25 16:41:55,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2023-12-25 16:41:55,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:41:55,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:41:55,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-25 16:41:55,145 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:41:55,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:41:55,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2094034841, now seen corresponding path program 1 times [2023-12-25 16:41:55,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:41:55,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038051115] [2023-12-25 16:41:55,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:41:55,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:41:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:41:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:41:55,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:41:55,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038051115] [2023-12-25 16:41:55,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038051115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:41:55,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:41:55,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 16:41:55,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534996679] [2023-12-25 16:41:55,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:41:55,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 16:41:55,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:41:55,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 16:41:55,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 16:41:55,912 INFO L87 Difference]: Start difference. First operand 12989 states and 21458 transitions. Second operand has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 5 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:01,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:42:01,053 INFO L93 Difference]: Finished difference Result 24582 states and 40680 transitions. [2023-12-25 16:42:01,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 16:42:01,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 5 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 382 [2023-12-25 16:42:01,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:42:01,062 INFO L225 Difference]: With dead ends: 24582 [2023-12-25 16:42:01,062 INFO L226 Difference]: Without dead ends: 12997 [2023-12-25 16:42:01,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 16:42:01,072 INFO L413 NwaCegarLoop]: 15488 mSDtfsCounter, 35992 mSDsluCounter, 30975 mSDsCounter, 0 mSdLazyCounter, 8289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35992 SdHoareTripleChecker+Valid, 46463 SdHoareTripleChecker+Invalid, 8290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-25 16:42:01,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35992 Valid, 46463 Invalid, 8290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 8289 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-25 16:42:01,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12997 states. [2023-12-25 16:42:01,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12997 to 12993. [2023-12-25 16:42:01,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12993 states, 12992 states have (on average 1.6519396551724137) internal successors, (21462), 12992 states have internal predecessors, (21462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:01,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12993 states to 12993 states and 21462 transitions. [2023-12-25 16:42:01,224 INFO L78 Accepts]: Start accepts. Automaton has 12993 states and 21462 transitions. Word has length 382 [2023-12-25 16:42:01,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:42:01,224 INFO L495 AbstractCegarLoop]: Abstraction has 12993 states and 21462 transitions. [2023-12-25 16:42:01,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 5 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:01,224 INFO L276 IsEmpty]: Start isEmpty. Operand 12993 states and 21462 transitions. [2023-12-25 16:42:01,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-12-25 16:42:01,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:42:01,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:42:01,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-25 16:42:01,226 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:42:01,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:42:01,227 INFO L85 PathProgramCache]: Analyzing trace with hash -15907278, now seen corresponding path program 1 times [2023-12-25 16:42:01,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:42:01,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926808286] [2023-12-25 16:42:01,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:42:01,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:42:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:42:02,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:42:02,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:42:02,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926808286] [2023-12-25 16:42:02,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926808286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:42:02,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:42:02,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 16:42:02,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571425871] [2023-12-25 16:42:02,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:42:02,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 16:42:02,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:42:02,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 16:42:02,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-25 16:42:02,400 INFO L87 Difference]: Start difference. First operand 12993 states and 21462 transitions. Second operand has 7 states, 7 states have (on average 54.714285714285715) internal successors, (383), 6 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:04,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:42:04,864 INFO L93 Difference]: Finished difference Result 36831 states and 60957 transitions. [2023-12-25 16:42:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 16:42:04,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 54.714285714285715) internal successors, (383), 6 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 383 [2023-12-25 16:42:04,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:42:04,887 INFO L225 Difference]: With dead ends: 36831 [2023-12-25 16:42:04,888 INFO L226 Difference]: Without dead ends: 24996 [2023-12-25 16:42:04,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-25 16:42:04,902 INFO L413 NwaCegarLoop]: 17676 mSDtfsCounter, 89118 mSDsluCounter, 52867 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89118 SdHoareTripleChecker+Valid, 70543 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-25 16:42:04,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89118 Valid, 70543 Invalid, 3082 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-25 16:42:04,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24996 states. [2023-12-25 16:42:05,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24996 to 13125. [2023-12-25 16:42:05,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13125 states, 13124 states have (on average 1.6490399268515696) internal successors, (21642), 13124 states have internal predecessors, (21642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:05,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13125 states to 13125 states and 21642 transitions. [2023-12-25 16:42:05,083 INFO L78 Accepts]: Start accepts. Automaton has 13125 states and 21642 transitions. Word has length 383 [2023-12-25 16:42:05,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:42:05,083 INFO L495 AbstractCegarLoop]: Abstraction has 13125 states and 21642 transitions. [2023-12-25 16:42:05,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 54.714285714285715) internal successors, (383), 6 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 13125 states and 21642 transitions. [2023-12-25 16:42:05,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2023-12-25 16:42:05,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:42:05,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:42:05,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-25 16:42:05,086 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:42:05,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:42:05,087 INFO L85 PathProgramCache]: Analyzing trace with hash 359304831, now seen corresponding path program 1 times [2023-12-25 16:42:05,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:42:05,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998915715] [2023-12-25 16:42:05,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:42:05,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:42:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:42:06,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:42:06,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:42:06,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998915715] [2023-12-25 16:42:06,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998915715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:42:06,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:42:06,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 16:42:06,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298954123] [2023-12-25 16:42:06,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:42:06,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 16:42:06,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:42:06,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 16:42:06,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-25 16:42:06,290 INFO L87 Difference]: Start difference. First operand 13125 states and 21642 transitions. Second operand has 10 states, 10 states have (on average 38.4) internal successors, (384), 9 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:11,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:42:11,881 INFO L93 Difference]: Finished difference Result 49447 states and 81628 transitions. [2023-12-25 16:42:11,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 16:42:11,881 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 38.4) internal successors, (384), 9 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 384 [2023-12-25 16:42:11,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:42:11,906 INFO L225 Difference]: With dead ends: 49447 [2023-12-25 16:42:11,906 INFO L226 Difference]: Without dead ends: 37561 [2023-12-25 16:42:11,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2023-12-25 16:42:11,915 INFO L413 NwaCegarLoop]: 34625 mSDtfsCounter, 106519 mSDsluCounter, 140154 mSDsCounter, 0 mSdLazyCounter, 7867 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106519 SdHoareTripleChecker+Valid, 174779 SdHoareTripleChecker+Invalid, 7870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-25 16:42:11,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106519 Valid, 174779 Invalid, 7870 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3 Valid, 7867 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-25 16:42:11,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37561 states. [2023-12-25 16:42:12,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37561 to 13323. [2023-12-25 16:42:12,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13323 states, 13322 states have (on average 1.6487013961867587) internal successors, (21964), 13322 states have internal predecessors, (21964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:12,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13323 states to 13323 states and 21964 transitions. [2023-12-25 16:42:12,103 INFO L78 Accepts]: Start accepts. Automaton has 13323 states and 21964 transitions. Word has length 384 [2023-12-25 16:42:12,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:42:12,103 INFO L495 AbstractCegarLoop]: Abstraction has 13323 states and 21964 transitions. [2023-12-25 16:42:12,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 38.4) internal successors, (384), 9 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:12,103 INFO L276 IsEmpty]: Start isEmpty. Operand 13323 states and 21964 transitions. [2023-12-25 16:42:12,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-25 16:42:12,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:42:12,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:42:12,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-25 16:42:12,106 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:42:12,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:42:12,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1876350649, now seen corresponding path program 1 times [2023-12-25 16:42:12,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:42:12,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927984609] [2023-12-25 16:42:12,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:42:12,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:42:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:42:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:42:12,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:42:12,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927984609] [2023-12-25 16:42:12,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927984609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:42:12,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:42:12,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:42:12,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235769244] [2023-12-25 16:42:12,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:42:12,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 16:42:12,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:42:12,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 16:42:12,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:42:12,597 INFO L87 Difference]: Start difference. First operand 13323 states and 21964 transitions. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:16,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:42:16,060 INFO L93 Difference]: Finished difference Result 25129 states and 41513 transitions. [2023-12-25 16:42:16,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 16:42:16,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2023-12-25 16:42:16,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:42:16,072 INFO L225 Difference]: With dead ends: 25129 [2023-12-25 16:42:16,072 INFO L226 Difference]: Without dead ends: 13331 [2023-12-25 16:42:16,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:42:16,086 INFO L413 NwaCegarLoop]: 16208 mSDtfsCounter, 17922 mSDsluCounter, 32413 mSDsCounter, 0 mSdLazyCounter, 6129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17922 SdHoareTripleChecker+Valid, 48621 SdHoareTripleChecker+Invalid, 6131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-25 16:42:16,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17922 Valid, 48621 Invalid, 6131 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 6129 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-25 16:42:16,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13331 states. [2023-12-25 16:42:16,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13331 to 13327. [2023-12-25 16:42:16,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13327 states, 13326 states have (on average 1.6485066786732703) internal successors, (21968), 13326 states have internal predecessors, (21968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:16,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13327 states to 13327 states and 21968 transitions. [2023-12-25 16:42:16,224 INFO L78 Accepts]: Start accepts. Automaton has 13327 states and 21968 transitions. Word has length 385 [2023-12-25 16:42:16,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:42:16,224 INFO L495 AbstractCegarLoop]: Abstraction has 13327 states and 21968 transitions. [2023-12-25 16:42:16,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:16,224 INFO L276 IsEmpty]: Start isEmpty. Operand 13327 states and 21968 transitions. [2023-12-25 16:42:16,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-25 16:42:16,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:42:16,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:42:16,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-25 16:42:16,227 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:42:16,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:42:16,228 INFO L85 PathProgramCache]: Analyzing trace with hash -152235461, now seen corresponding path program 1 times [2023-12-25 16:42:16,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:42:16,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234441295] [2023-12-25 16:42:16,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:42:16,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:42:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:42:17,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:42:17,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:42:17,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234441295] [2023-12-25 16:42:17,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234441295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:42:17,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:42:17,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:42:17,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701974217] [2023-12-25 16:42:17,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:42:17,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 16:42:17,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:42:17,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 16:42:17,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 16:42:17,067 INFO L87 Difference]: Start difference. First operand 13327 states and 21968 transitions. Second operand has 5 states, 5 states have (on average 77.0) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:21,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:42:21,626 INFO L93 Difference]: Finished difference Result 25085 states and 41439 transitions. [2023-12-25 16:42:21,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 16:42:21,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2023-12-25 16:42:21,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:42:21,639 INFO L225 Difference]: With dead ends: 25085 [2023-12-25 16:42:21,639 INFO L226 Difference]: Without dead ends: 13331 [2023-12-25 16:42:21,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 16:42:21,649 INFO L413 NwaCegarLoop]: 15488 mSDtfsCounter, 17898 mSDsluCounter, 30975 mSDsCounter, 0 mSdLazyCounter, 8289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17898 SdHoareTripleChecker+Valid, 46463 SdHoareTripleChecker+Invalid, 8289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-25 16:42:21,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17898 Valid, 46463 Invalid, 8289 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 8289 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-25 16:42:21,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13331 states. [2023-12-25 16:42:21,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13331 to 13329. [2023-12-25 16:42:21,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13329 states, 13328 states have (on average 1.6484093637454982) internal successors, (21970), 13328 states have internal predecessors, (21970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13329 states to 13329 states and 21970 transitions. [2023-12-25 16:42:21,791 INFO L78 Accepts]: Start accepts. Automaton has 13329 states and 21970 transitions. Word has length 385 [2023-12-25 16:42:21,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:42:21,791 INFO L495 AbstractCegarLoop]: Abstraction has 13329 states and 21970 transitions. [2023-12-25 16:42:21,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.0) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 13329 states and 21970 transitions. [2023-12-25 16:42:21,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-25 16:42:21,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:42:21,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:42:21,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-25 16:42:21,795 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:42:21,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:42:21,795 INFO L85 PathProgramCache]: Analyzing trace with hash -11686851, now seen corresponding path program 1 times [2023-12-25 16:42:21,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:42:21,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748231037] [2023-12-25 16:42:21,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:42:21,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:42:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:42:22,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:42:22,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:42:22,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748231037] [2023-12-25 16:42:22,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748231037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:42:22,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:42:22,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 16:42:22,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523947308] [2023-12-25 16:42:22,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:42:22,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 16:42:22,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:42:22,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 16:42:22,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 16:42:22,647 INFO L87 Difference]: Start difference. First operand 13329 states and 21970 transitions. Second operand has 8 states, 8 states have (on average 48.125) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:36,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:42:36,274 INFO L93 Difference]: Finished difference Result 37815 states and 62430 transitions. [2023-12-25 16:42:36,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 16:42:36,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 48.125) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2023-12-25 16:42:36,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:42:36,301 INFO L225 Difference]: With dead ends: 37815 [2023-12-25 16:42:36,301 INFO L226 Difference]: Without dead ends: 25611 [2023-12-25 16:42:36,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-25 16:42:36,324 INFO L413 NwaCegarLoop]: 30630 mSDtfsCounter, 36039 mSDsluCounter, 107372 mSDsCounter, 0 mSdLazyCounter, 24399 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36039 SdHoareTripleChecker+Valid, 138002 SdHoareTripleChecker+Invalid, 24402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-12-25 16:42:36,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36039 Valid, 138002 Invalid, 24402 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3 Valid, 24399 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2023-12-25 16:42:36,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25611 states. [2023-12-25 16:42:36,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25611 to 13389. [2023-12-25 16:42:36,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13389 states, 13388 states have (on average 1.646399760979982) internal successors, (22042), 13388 states have internal predecessors, (22042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:36,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13389 states to 13389 states and 22042 transitions. [2023-12-25 16:42:36,495 INFO L78 Accepts]: Start accepts. Automaton has 13389 states and 22042 transitions. Word has length 385 [2023-12-25 16:42:36,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:42:36,495 INFO L495 AbstractCegarLoop]: Abstraction has 13389 states and 22042 transitions. [2023-12-25 16:42:36,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 48.125) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:36,495 INFO L276 IsEmpty]: Start isEmpty. Operand 13389 states and 22042 transitions. [2023-12-25 16:42:36,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-25 16:42:36,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:42:36,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:42:36,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-25 16:42:36,498 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:42:36,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:42:36,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1377607163, now seen corresponding path program 1 times [2023-12-25 16:42:36,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:42:36,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608384535] [2023-12-25 16:42:36,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:42:36,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:42:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:42:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:42:38,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:42:38,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608384535] [2023-12-25 16:42:38,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608384535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:42:38,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:42:38,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 16:42:38,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298862938] [2023-12-25 16:42:38,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:42:38,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 16:42:38,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:42:38,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 16:42:38,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-25 16:42:38,118 INFO L87 Difference]: Start difference. First operand 13389 states and 22042 transitions. Second operand has 8 states, 8 states have (on average 48.125) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:41,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:42:41,720 INFO L93 Difference]: Finished difference Result 47792 states and 79076 transitions. [2023-12-25 16:42:41,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 16:42:41,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 48.125) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2023-12-25 16:42:41,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:42:41,752 INFO L225 Difference]: With dead ends: 47792 [2023-12-25 16:42:41,753 INFO L226 Difference]: Without dead ends: 35977 [2023-12-25 16:42:41,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-12-25 16:42:41,770 INFO L413 NwaCegarLoop]: 17803 mSDtfsCounter, 106277 mSDsluCounter, 88236 mSDsCounter, 0 mSdLazyCounter, 4598 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106277 SdHoareTripleChecker+Valid, 106039 SdHoareTripleChecker+Invalid, 4598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-25 16:42:41,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106277 Valid, 106039 Invalid, 4598 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 4598 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-25 16:42:41,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35977 states. [2023-12-25 16:42:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35977 to 13391. [2023-12-25 16:42:41,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13391 states, 13390 states have (on average 1.646303211351755) internal successors, (22044), 13390 states have internal predecessors, (22044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:41,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13391 states to 13391 states and 22044 transitions. [2023-12-25 16:42:41,972 INFO L78 Accepts]: Start accepts. Automaton has 13391 states and 22044 transitions. Word has length 385 [2023-12-25 16:42:41,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:42:41,972 INFO L495 AbstractCegarLoop]: Abstraction has 13391 states and 22044 transitions. [2023-12-25 16:42:41,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 48.125) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:41,972 INFO L276 IsEmpty]: Start isEmpty. Operand 13391 states and 22044 transitions. [2023-12-25 16:42:41,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-25 16:42:41,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:42:41,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:42:41,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-25 16:42:41,991 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:42:41,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:42:41,991 INFO L85 PathProgramCache]: Analyzing trace with hash -671780679, now seen corresponding path program 1 times [2023-12-25 16:42:41,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:42:41,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472961468] [2023-12-25 16:42:41,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:42:41,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:42:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:42:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:42:43,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:42:43,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472961468] [2023-12-25 16:42:43,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472961468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:42:43,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:42:43,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 16:42:43,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273276356] [2023-12-25 16:42:43,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:42:43,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 16:42:43,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:42:43,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 16:42:43,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-25 16:42:43,580 INFO L87 Difference]: Start difference. First operand 13391 states and 22044 transitions. Second operand has 10 states, 10 states have (on average 38.5) internal successors, (385), 10 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:42:59,028 INFO L93 Difference]: Finished difference Result 63279 states and 104086 transitions. [2023-12-25 16:42:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-25 16:42:59,028 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 38.5) internal successors, (385), 10 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2023-12-25 16:42:59,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:42:59,080 INFO L225 Difference]: With dead ends: 63279 [2023-12-25 16:42:59,080 INFO L226 Difference]: Without dead ends: 51475 [2023-12-25 16:42:59,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2023-12-25 16:42:59,103 INFO L413 NwaCegarLoop]: 48762 mSDtfsCounter, 71442 mSDsluCounter, 289845 mSDsCounter, 0 mSdLazyCounter, 30094 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71442 SdHoareTripleChecker+Valid, 338607 SdHoareTripleChecker+Invalid, 30561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 30094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2023-12-25 16:42:59,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71442 Valid, 338607 Invalid, 30561 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [467 Valid, 30094 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2023-12-25 16:42:59,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51475 states. [2023-12-25 16:42:59,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51475 to 27656. [2023-12-25 16:42:59,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27656 states, 27655 states have (on average 1.6424154764057133) internal successors, (45421), 27655 states have internal predecessors, (45421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:59,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27656 states to 27656 states and 45421 transitions. [2023-12-25 16:42:59,688 INFO L78 Accepts]: Start accepts. Automaton has 27656 states and 45421 transitions. Word has length 385 [2023-12-25 16:42:59,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:42:59,688 INFO L495 AbstractCegarLoop]: Abstraction has 27656 states and 45421 transitions. [2023-12-25 16:42:59,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 38.5) internal successors, (385), 10 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:42:59,689 INFO L276 IsEmpty]: Start isEmpty. Operand 27656 states and 45421 transitions. [2023-12-25 16:42:59,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-25 16:42:59,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:42:59,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:42:59,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-25 16:42:59,694 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:42:59,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:42:59,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1278851670, now seen corresponding path program 1 times [2023-12-25 16:42:59,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:42:59,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459159635] [2023-12-25 16:42:59,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:42:59,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:42:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:43:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:43:00,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:43:00,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459159635] [2023-12-25 16:43:00,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459159635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:43:00,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:43:00,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 16:43:00,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715608492] [2023-12-25 16:43:00,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:43:00,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 16:43:00,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:43:00,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 16:43:00,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 16:43:00,549 INFO L87 Difference]: Start difference. First operand 27656 states and 45421 transitions. Second operand has 8 states, 8 states have (on average 48.125) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:13,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:43:13,390 INFO L93 Difference]: Finished difference Result 79139 states and 130075 transitions. [2023-12-25 16:43:13,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 16:43:13,390 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 48.125) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2023-12-25 16:43:13,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:43:13,431 INFO L225 Difference]: With dead ends: 79139 [2023-12-25 16:43:13,431 INFO L226 Difference]: Without dead ends: 54515 [2023-12-25 16:43:13,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-25 16:43:13,439 INFO L413 NwaCegarLoop]: 30926 mSDtfsCounter, 53562 mSDsluCounter, 124030 mSDsCounter, 0 mSdLazyCounter, 27998 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53562 SdHoareTripleChecker+Valid, 154956 SdHoareTripleChecker+Invalid, 28000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-12-25 16:43:13,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53562 Valid, 154956 Invalid, 28000 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2 Valid, 27998 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2023-12-25 16:43:13,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54515 states. [2023-12-25 16:43:13,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54515 to 28970. [2023-12-25 16:43:13,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28970 states, 28969 states have (on average 1.6359901964168595) internal successors, (47393), 28969 states have internal predecessors, (47393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:13,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28970 states to 28970 states and 47393 transitions. [2023-12-25 16:43:13,826 INFO L78 Accepts]: Start accepts. Automaton has 28970 states and 47393 transitions. Word has length 385 [2023-12-25 16:43:13,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:43:13,826 INFO L495 AbstractCegarLoop]: Abstraction has 28970 states and 47393 transitions. [2023-12-25 16:43:13,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 48.125) internal successors, (385), 7 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:13,826 INFO L276 IsEmpty]: Start isEmpty. Operand 28970 states and 47393 transitions. [2023-12-25 16:43:13,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-12-25 16:43:13,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:43:13,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:43:13,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-25 16:43:13,832 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:43:13,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:43:13,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1205267092, now seen corresponding path program 1 times [2023-12-25 16:43:13,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:43:13,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900150780] [2023-12-25 16:43:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:43:13,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:43:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:43:15,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:43:15,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:43:15,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900150780] [2023-12-25 16:43:15,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900150780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:43:15,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:43:15,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 16:43:15,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580305969] [2023-12-25 16:43:15,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:43:15,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 16:43:15,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:43:15,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 16:43:15,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-25 16:43:15,331 INFO L87 Difference]: Start difference. First operand 28970 states and 47393 transitions. Second operand has 10 states, 10 states have (on average 38.5) internal successors, (385), 9 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:29,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:43:29,877 INFO L93 Difference]: Finished difference Result 80464 states and 131943 transitions. [2023-12-25 16:43:29,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 16:43:29,878 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 38.5) internal successors, (385), 9 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2023-12-25 16:43:29,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:43:29,920 INFO L225 Difference]: With dead ends: 80464 [2023-12-25 16:43:29,920 INFO L226 Difference]: Without dead ends: 55183 [2023-12-25 16:43:29,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2023-12-25 16:43:29,930 INFO L413 NwaCegarLoop]: 30664 mSDtfsCounter, 70978 mSDsluCounter, 123713 mSDsCounter, 0 mSdLazyCounter, 27781 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70978 SdHoareTripleChecker+Valid, 154377 SdHoareTripleChecker+Invalid, 27785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-25 16:43:29,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70978 Valid, 154377 Invalid, 27785 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [4 Valid, 27781 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2023-12-25 16:43:29,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55183 states. [2023-12-25 16:43:30,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55183 to 28066. [2023-12-25 16:43:30,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28066 states, 28065 states have (on average 1.6406556208800998) internal successors, (46045), 28065 states have internal predecessors, (46045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:30,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28066 states to 28066 states and 46045 transitions. [2023-12-25 16:43:30,336 INFO L78 Accepts]: Start accepts. Automaton has 28066 states and 46045 transitions. Word has length 385 [2023-12-25 16:43:30,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:43:30,337 INFO L495 AbstractCegarLoop]: Abstraction has 28066 states and 46045 transitions. [2023-12-25 16:43:30,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 38.5) internal successors, (385), 9 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:30,337 INFO L276 IsEmpty]: Start isEmpty. Operand 28066 states and 46045 transitions. [2023-12-25 16:43:30,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-12-25 16:43:30,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:43:30,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:43:30,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-25 16:43:30,342 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:43:30,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:43:30,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2109807484, now seen corresponding path program 1 times [2023-12-25 16:43:30,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:43:30,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714939565] [2023-12-25 16:43:30,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:43:30,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:43:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:43:31,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:43:31,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:43:31,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714939565] [2023-12-25 16:43:31,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714939565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:43:31,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:43:31,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 16:43:31,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629988769] [2023-12-25 16:43:31,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:43:31,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 16:43:31,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:43:31,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 16:43:31,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 16:43:31,266 INFO L87 Difference]: Start difference. First operand 28066 states and 46045 transitions. Second operand has 7 states, 7 states have (on average 55.142857142857146) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:35,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:43:35,402 INFO L93 Difference]: Finished difference Result 52495 states and 86382 transitions. [2023-12-25 16:43:35,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 16:43:35,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 55.142857142857146) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 386 [2023-12-25 16:43:35,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:43:35,425 INFO L225 Difference]: With dead ends: 52495 [2023-12-25 16:43:35,425 INFO L226 Difference]: Without dead ends: 28078 [2023-12-25 16:43:35,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-25 16:43:35,438 INFO L413 NwaCegarLoop]: 16528 mSDtfsCounter, 53482 mSDsluCounter, 34474 mSDsCounter, 0 mSdLazyCounter, 6582 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53482 SdHoareTripleChecker+Valid, 51002 SdHoareTripleChecker+Invalid, 6583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-25 16:43:35,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53482 Valid, 51002 Invalid, 6583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 6582 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-25 16:43:35,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28078 states. [2023-12-25 16:43:35,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28078 to 28074. [2023-12-25 16:43:35,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28074 states, 28073 states have (on average 1.6405442952302924) internal successors, (46055), 28073 states have internal predecessors, (46055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:35,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28074 states to 28074 states and 46055 transitions. [2023-12-25 16:43:35,832 INFO L78 Accepts]: Start accepts. Automaton has 28074 states and 46055 transitions. Word has length 386 [2023-12-25 16:43:35,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:43:35,832 INFO L495 AbstractCegarLoop]: Abstraction has 28074 states and 46055 transitions. [2023-12-25 16:43:35,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 55.142857142857146) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:35,833 INFO L276 IsEmpty]: Start isEmpty. Operand 28074 states and 46055 transitions. [2023-12-25 16:43:35,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-12-25 16:43:35,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:43:35,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:43:35,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-25 16:43:35,839 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:43:35,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:43:35,840 INFO L85 PathProgramCache]: Analyzing trace with hash -134175814, now seen corresponding path program 1 times [2023-12-25 16:43:35,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:43:35,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124750231] [2023-12-25 16:43:35,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:43:35,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:43:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:43:37,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:43:37,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:43:37,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124750231] [2023-12-25 16:43:37,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124750231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:43:37,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:43:37,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 16:43:37,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761952354] [2023-12-25 16:43:37,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:43:37,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-25 16:43:37,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:43:37,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-25 16:43:37,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-25 16:43:37,514 INFO L87 Difference]: Start difference. First operand 28074 states and 46055 transitions. Second operand has 10 states, 10 states have (on average 38.6) internal successors, (386), 10 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:56,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:43:56,055 INFO L93 Difference]: Finished difference Result 136005 states and 223864 transitions. [2023-12-25 16:43:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-25 16:43:56,055 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 38.6) internal successors, (386), 10 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 386 [2023-12-25 16:43:56,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:43:56,176 INFO L225 Difference]: With dead ends: 136005 [2023-12-25 16:43:56,176 INFO L226 Difference]: Without dead ends: 111182 [2023-12-25 16:43:56,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2023-12-25 16:43:56,207 INFO L413 NwaCegarLoop]: 66258 mSDtfsCounter, 89187 mSDsluCounter, 376924 mSDsCounter, 0 mSdLazyCounter, 31629 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89187 SdHoareTripleChecker+Valid, 443182 SdHoareTripleChecker+Invalid, 32097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 31629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2023-12-25 16:43:56,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89187 Valid, 443182 Invalid, 32097 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [468 Valid, 31629 Invalid, 0 Unknown, 0 Unchecked, 16.0s Time] [2023-12-25 16:43:56,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111182 states. [2023-12-25 16:43:57,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111182 to 72965. [2023-12-25 16:43:57,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72965 states, 72964 states have (on average 1.644331451126583) internal successors, (119977), 72964 states have internal predecessors, (119977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:57,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72965 states to 72965 states and 119977 transitions. [2023-12-25 16:43:57,145 INFO L78 Accepts]: Start accepts. Automaton has 72965 states and 119977 transitions. Word has length 386 [2023-12-25 16:43:57,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:43:57,146 INFO L495 AbstractCegarLoop]: Abstraction has 72965 states and 119977 transitions. [2023-12-25 16:43:57,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 38.6) internal successors, (386), 10 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:43:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 72965 states and 119977 transitions. [2023-12-25 16:43:57,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-12-25 16:43:57,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:43:57,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:43:57,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-25 16:43:57,153 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:43:57,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:43:57,153 INFO L85 PathProgramCache]: Analyzing trace with hash -220129853, now seen corresponding path program 1 times [2023-12-25 16:43:57,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:43:57,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904327751] [2023-12-25 16:43:57,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:43:57,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:43:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:43:59,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:43:59,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:43:59,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904327751] [2023-12-25 16:43:59,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904327751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:43:59,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:43:59,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-25 16:43:59,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64232087] [2023-12-25 16:43:59,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:43:59,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 16:43:59,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:43:59,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 16:43:59,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-25 16:43:59,252 INFO L87 Difference]: Start difference. First operand 72965 states and 119977 transitions. Second operand has 11 states, 11 states have (on average 35.09090909090909) internal successors, (386), 10 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:15,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:44:15,837 INFO L93 Difference]: Finished difference Result 332711 states and 548024 transitions. [2023-12-25 16:44:15,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 16:44:15,837 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 35.09090909090909) internal successors, (386), 10 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 386 [2023-12-25 16:44:15,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:44:16,229 INFO L225 Difference]: With dead ends: 332711 [2023-12-25 16:44:16,229 INFO L226 Difference]: Without dead ends: 263639 [2023-12-25 16:44:16,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2023-12-25 16:44:16,274 INFO L413 NwaCegarLoop]: 32041 mSDtfsCounter, 88894 mSDsluCounter, 224819 mSDsCounter, 0 mSdLazyCounter, 32574 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88894 SdHoareTripleChecker+Valid, 256860 SdHoareTripleChecker+Invalid, 32575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-12-25 16:44:16,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88894 Valid, 256860 Invalid, 32575 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 32574 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2023-12-25 16:44:16,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263639 states. [2023-12-25 16:44:17,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263639 to 80977. [2023-12-25 16:44:17,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80977 states, 80976 states have (on average 1.6326936376210235) internal successors, (132209), 80976 states have internal predecessors, (132209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:18,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80977 states to 80977 states and 132209 transitions. [2023-12-25 16:44:18,112 INFO L78 Accepts]: Start accepts. Automaton has 80977 states and 132209 transitions. Word has length 386 [2023-12-25 16:44:18,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:44:18,113 INFO L495 AbstractCegarLoop]: Abstraction has 80977 states and 132209 transitions. [2023-12-25 16:44:18,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 35.09090909090909) internal successors, (386), 10 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:18,113 INFO L276 IsEmpty]: Start isEmpty. Operand 80977 states and 132209 transitions. [2023-12-25 16:44:18,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-25 16:44:18,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:44:18,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:44:18,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-25 16:44:18,128 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:44:18,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:44:18,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1108481143, now seen corresponding path program 1 times [2023-12-25 16:44:18,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:44:18,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60859502] [2023-12-25 16:44:18,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:44:18,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:44:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:44:19,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:44:19,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:44:19,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60859502] [2023-12-25 16:44:19,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60859502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:44:19,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:44:19,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 16:44:19,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519284400] [2023-12-25 16:44:19,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:44:19,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 16:44:19,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:44:19,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 16:44:19,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 16:44:19,102 INFO L87 Difference]: Start difference. First operand 80977 states and 132209 transitions. Second operand has 7 states, 7 states have (on average 55.285714285714285) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:22,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:44:22,850 INFO L93 Difference]: Finished difference Result 154574 states and 253120 transitions. [2023-12-25 16:44:22,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 16:44:22,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 55.285714285714285) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 387 [2023-12-25 16:44:22,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:44:22,921 INFO L225 Difference]: With dead ends: 154574 [2023-12-25 16:44:22,921 INFO L226 Difference]: Without dead ends: 81249 [2023-12-25 16:44:22,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-25 16:44:22,948 INFO L413 NwaCegarLoop]: 16428 mSDtfsCounter, 53531 mSDsluCounter, 34066 mSDsCounter, 0 mSdLazyCounter, 6437 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53531 SdHoareTripleChecker+Valid, 50494 SdHoareTripleChecker+Invalid, 6438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 16:44:22,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53531 Valid, 50494 Invalid, 6438 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 6437 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 16:44:22,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81249 states. [2023-12-25 16:44:23,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81249 to 81201. [2023-12-25 16:44:23,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81201 states, 81200 states have (on average 1.6320320197044336) internal successors, (132521), 81200 states have internal predecessors, (132521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:24,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81201 states to 81201 states and 132521 transitions. [2023-12-25 16:44:24,114 INFO L78 Accepts]: Start accepts. Automaton has 81201 states and 132521 transitions. Word has length 387 [2023-12-25 16:44:24,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:44:24,114 INFO L495 AbstractCegarLoop]: Abstraction has 81201 states and 132521 transitions. [2023-12-25 16:44:24,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 55.285714285714285) internal successors, (387), 6 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:24,114 INFO L276 IsEmpty]: Start isEmpty. Operand 81201 states and 132521 transitions. [2023-12-25 16:44:24,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-25 16:44:24,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:44:24,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:44:24,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-25 16:44:24,123 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:44:24,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:44:24,124 INFO L85 PathProgramCache]: Analyzing trace with hash -832100871, now seen corresponding path program 1 times [2023-12-25 16:44:24,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:44:24,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388473449] [2023-12-25 16:44:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:44:24,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:44:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:44:25,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:44:25,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:44:25,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388473449] [2023-12-25 16:44:25,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388473449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:44:25,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:44:25,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 16:44:25,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496598445] [2023-12-25 16:44:25,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:44:25,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 16:44:25,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:44:25,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 16:44:25,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 16:44:25,912 INFO L87 Difference]: Start difference. First operand 81201 states and 132521 transitions. Second operand has 9 states, 9 states have (on average 43.0) internal successors, (387), 9 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:27,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:44:27,456 INFO L93 Difference]: Finished difference Result 318512 states and 520390 transitions. [2023-12-25 16:44:27,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 16:44:27,457 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 43.0) internal successors, (387), 9 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 387 [2023-12-25 16:44:27,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:44:27,684 INFO L225 Difference]: With dead ends: 318512 [2023-12-25 16:44:27,684 INFO L226 Difference]: Without dead ends: 244411 [2023-12-25 16:44:27,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-12-25 16:44:27,742 INFO L413 NwaCegarLoop]: 18506 mSDtfsCounter, 53283 mSDsluCounter, 129187 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53283 SdHoareTripleChecker+Valid, 147693 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 16:44:27,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53283 Valid, 147693 Invalid, 119 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 16:44:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244411 states. [2023-12-25 16:44:29,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244411 to 95709. [2023-12-25 16:44:29,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95709 states, 95708 states have (on average 1.6156329669411125) internal successors, (154629), 95708 states have internal predecessors, (154629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:29,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95709 states to 95709 states and 154629 transitions. [2023-12-25 16:44:29,679 INFO L78 Accepts]: Start accepts. Automaton has 95709 states and 154629 transitions. Word has length 387 [2023-12-25 16:44:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:44:29,679 INFO L495 AbstractCegarLoop]: Abstraction has 95709 states and 154629 transitions. [2023-12-25 16:44:29,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 43.0) internal successors, (387), 9 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:29,680 INFO L276 IsEmpty]: Start isEmpty. Operand 95709 states and 154629 transitions. [2023-12-25 16:44:29,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2023-12-25 16:44:29,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:44:29,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:44:29,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-25 16:44:29,693 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:44:29,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:44:29,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1680608368, now seen corresponding path program 1 times [2023-12-25 16:44:29,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:44:29,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383700460] [2023-12-25 16:44:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:44:29,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:44:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:44:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:44:30,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:44:30,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383700460] [2023-12-25 16:44:30,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383700460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:44:30,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:44:30,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 16:44:30,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702680545] [2023-12-25 16:44:30,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:44:30,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 16:44:30,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:44:30,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 16:44:30,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 16:44:30,611 INFO L87 Difference]: Start difference. First operand 95709 states and 154629 transitions. Second operand has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 5 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:34,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:44:34,644 INFO L93 Difference]: Finished difference Result 177250 states and 287678 transitions. [2023-12-25 16:44:34,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 16:44:34,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 5 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 388 [2023-12-25 16:44:34,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:44:34,718 INFO L225 Difference]: With dead ends: 177250 [2023-12-25 16:44:34,719 INFO L226 Difference]: Without dead ends: 95929 [2023-12-25 16:44:34,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 16:44:34,756 INFO L413 NwaCegarLoop]: 16440 mSDtfsCounter, 35751 mSDsluCounter, 33514 mSDsCounter, 0 mSdLazyCounter, 6370 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35751 SdHoareTripleChecker+Valid, 49954 SdHoareTripleChecker+Invalid, 6371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-25 16:44:34,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35751 Valid, 49954 Invalid, 6371 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 6370 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-25 16:44:34,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95929 states. [2023-12-25 16:44:35,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95929 to 95881. [2023-12-25 16:44:35,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95881 states, 95880 states have (on average 1.6151752190237798) internal successors, (154863), 95880 states have internal predecessors, (154863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:36,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95881 states to 95881 states and 154863 transitions. [2023-12-25 16:44:36,011 INFO L78 Accepts]: Start accepts. Automaton has 95881 states and 154863 transitions. Word has length 388 [2023-12-25 16:44:36,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:44:36,012 INFO L495 AbstractCegarLoop]: Abstraction has 95881 states and 154863 transitions. [2023-12-25 16:44:36,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 5 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:36,012 INFO L276 IsEmpty]: Start isEmpty. Operand 95881 states and 154863 transitions. [2023-12-25 16:44:36,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2023-12-25 16:44:36,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:44:36,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 16:44:36,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-25 16:44:36,041 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:44:36,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:44:36,041 INFO L85 PathProgramCache]: Analyzing trace with hash -737876110, now seen corresponding path program 1 times [2023-12-25 16:44:36,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:44:36,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332370788] [2023-12-25 16:44:36,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:44:36,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:44:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:44:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:44:37,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:44:37,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332370788] [2023-12-25 16:44:37,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332370788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:44:37,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:44:37,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 16:44:37,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189870315] [2023-12-25 16:44:37,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:44:37,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 16:44:37,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:44:37,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 16:44:37,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 16:44:37,404 INFO L87 Difference]: Start difference. First operand 95881 states and 154863 transitions. Second operand has 8 states, 8 states have (on average 48.5) internal successors, (388), 8 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-25 16:44:48,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:44:48,288 INFO L93 Difference]: Finished difference Result 350107 states and 568513 transitions. [2023-12-25 16:44:48,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 16:44:48,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 48.5) internal successors, (388), 8 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 388 [2023-12-25 16:44:48,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:44:48,540 INFO L225 Difference]: With dead ends: 350107 [2023-12-25 16:44:48,540 INFO L226 Difference]: Without dead ends: 268242 [2023-12-25 16:44:48,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-25 16:44:48,606 INFO L413 NwaCegarLoop]: 16510 mSDtfsCounter, 141770 mSDsluCounter, 97829 mSDsCounter, 0 mSdLazyCounter, 11970 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141770 SdHoareTripleChecker+Valid, 114339 SdHoareTripleChecker+Invalid, 12437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 11970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-12-25 16:44:48,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141770 Valid, 114339 Invalid, 12437 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [467 Valid, 11970 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-12-25 16:44:48,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268242 states.