/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.cal194.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 16:03:54,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 16:03:54,265 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 16:03:54,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 16:03:54,271 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 16:03:54,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 16:03:54,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 16:03:54,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 16:03:54,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 16:03:54,308 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 16:03:54,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 16:03:54,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 16:03:54,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 16:03:54,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 16:03:54,310 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 16:03:54,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 16:03:54,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 16:03:54,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-25 16:03:54,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 16:03:54,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 16:03:54,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 16:03:54,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 16:03:54,314 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 16:03:54,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 16:03:54,314 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 16:03:54,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 16:03:54,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 16:03:54,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 16:03:54,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 16:03:54,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 16:03:54,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 16:03:54,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 16:03:54,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 16:03:54,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-25 16:03:54,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-25 16:03:54,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 16:03:54,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 16:03:54,317 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 16:03:54,317 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 16:03:54,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 16:03:54,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-25 16:03:54,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 16:03:54,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 16:03:54,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 16:03:54,534 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 16:03:54,537 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 16:03:54,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal194.c [2023-12-25 16:03:55,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 16:03:56,300 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 16:03:56,300 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal194.c [2023-12-25 16:03:56,384 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d78780f4/b49a3085e9814031b53e75b345a1ec6b/FLAG3e60ad33d [2023-12-25 16:03:56,394 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d78780f4/b49a3085e9814031b53e75b345a1ec6b [2023-12-25 16:03:56,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 16:03:56,396 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 16:03:56,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 16:03:56,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 16:03:56,400 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 16:03:56,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 04:03:56" (1/1) ... [2023-12-25 16:03:56,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@704de7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:03:56, skipping insertion in model container [2023-12-25 16:03:56,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 04:03:56" (1/1) ... [2023-12-25 16:03:56,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 16:03:56,964 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.cal194.c[1246,1259] [2023-12-25 16:03:58,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 16:03:58,837 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 16:03:58,847 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.cal194.c[1246,1259] [2023-12-25 16:04:00,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 16:04:00,171 INFO L206 MainTranslator]: Completed translation [2023-12-25 16:04:00,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00 WrapperNode [2023-12-25 16:04:00,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 16:04:00,173 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 16:04:00,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 16:04:00,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 16:04:00,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:00,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:07,130 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102306 [2023-12-25 16:04:07,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 16:04:07,131 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 16:04:07,131 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 16:04:07,131 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 16:04:07,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:07,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:09,622 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:10,685 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-25 16:04:10,685 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:10,685 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:12,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:13,171 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:13,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:13,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:16,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 16:04:16,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 16:04:16,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 16:04:16,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 16:04:16,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (1/1) ... [2023-12-25 16:04:16,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 16:04:16,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 16:04:16,176 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 16:04:16,207 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 16:04:16,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 16:04:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-25 16:04:16,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 16:04:16,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 16:04:19,529 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 16:04:19,531 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 16:04:59,624 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 16:05:01,136 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 16:05:01,136 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 16:05:01,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 04:05:01 BoogieIcfgContainer [2023-12-25 16:05:01,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 16:05:01,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 16:05:01,140 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 16:05:01,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 16:05:01,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 04:03:56" (1/3) ... [2023-12-25 16:05:01,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e2433a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 04:05:01, skipping insertion in model container [2023-12-25 16:05:01,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 04:04:00" (2/3) ... [2023-12-25 16:05:01,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e2433a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 04:05:01, skipping insertion in model container [2023-12-25 16:05:01,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 04:05:01" (3/3) ... [2023-12-25 16:05:01,146 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal194.c [2023-12-25 16:05:01,157 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 16:05:01,157 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 16:05:01,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 16:05:01,353 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;@764f429b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 16:05:01,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 16:05:01,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 21656 states, 21654 states have (on average 1.6692989747852591) internal successors, (36147), 21655 states have internal predecessors, (36147), 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 16:05:01,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2023-12-25 16:05:01,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:05:01,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:01,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:05:01,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:05:01,767 INFO L85 PathProgramCache]: Analyzing trace with hash 2068162992, now seen corresponding path program 1 times [2023-12-25 16:05:01,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:05:01,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482735689] [2023-12-25 16:05:01,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:05:01,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:05:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:05:03,662 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 16:05:03,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:05:03,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482735689] [2023-12-25 16:05:03,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482735689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:05:03,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:05:03,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 16:05:03,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127183165] [2023-12-25 16:05:03,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:05:03,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 16:05:03,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:05:03,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 16:05:03,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 16:05:03,724 INFO L87 Difference]: Start difference. First operand has 21656 states, 21654 states have (on average 1.6692989747852591) internal successors, (36147), 21655 states have internal predecessors, (36147), 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 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 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 16:05:04,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:05:04,367 INFO L93 Difference]: Finished difference Result 42972 states and 71730 transitions. [2023-12-25 16:05:04,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 16:05:04,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 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 840 [2023-12-25 16:05:04,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:05:04,436 INFO L225 Difference]: With dead ends: 42972 [2023-12-25 16:05:04,436 INFO L226 Difference]: Without dead ends: 21656 [2023-12-25 16:05:04,461 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 16:05:04,463 INFO L413 NwaCegarLoop]: 35995 mSDtfsCounter, 6 mSDsluCounter, 35985 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 71980 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 16:05:04,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 71980 Invalid, 8 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 16:05:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21656 states. [2023-12-25 16:05:04,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21656 to 21655. [2023-12-25 16:05:04,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21655 states, 21654 states have (on average 1.6624180290015702) internal successors, (35998), 21654 states have internal predecessors, (35998), 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 16:05:04,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21655 states to 21655 states and 35998 transitions. [2023-12-25 16:05:04,860 INFO L78 Accepts]: Start accepts. Automaton has 21655 states and 35998 transitions. Word has length 840 [2023-12-25 16:05:04,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:05:04,861 INFO L495 AbstractCegarLoop]: Abstraction has 21655 states and 35998 transitions. [2023-12-25 16:05:04,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 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 16:05:04,862 INFO L276 IsEmpty]: Start isEmpty. Operand 21655 states and 35998 transitions. [2023-12-25 16:05:04,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2023-12-25 16:05:04,873 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:05:04,873 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:04,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-25 16:05:04,874 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:05:04,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:05:04,874 INFO L85 PathProgramCache]: Analyzing trace with hash 352628350, now seen corresponding path program 1 times [2023-12-25 16:05:04,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:05:04,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748406000] [2023-12-25 16:05:04,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:05:04,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:05:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:05:08,152 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 16:05:08,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:05:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748406000] [2023-12-25 16:05:08,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748406000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:05:08,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:05:08,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:05:08,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728702370] [2023-12-25 16:05:08,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:05:08,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 16:05:08,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:05:08,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 16:05:08,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:05:08,160 INFO L87 Difference]: Start difference. First operand 21655 states and 35998 transitions. Second operand has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 16:05:08,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:05:08,628 INFO L93 Difference]: Finished difference Result 21659 states and 36002 transitions. [2023-12-25 16:05:08,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 16:05:08,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 840 [2023-12-25 16:05:08,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:05:08,673 INFO L225 Difference]: With dead ends: 21659 [2023-12-25 16:05:08,673 INFO L226 Difference]: Without dead ends: 21657 [2023-12-25 16:05:08,681 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 16:05:08,682 INFO L413 NwaCegarLoop]: 35994 mSDtfsCounter, 1 mSDsluCounter, 71983 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 107977 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 16:05:08,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 107977 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 16:05:08,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21657 states. [2023-12-25 16:05:08,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21657 to 21657. [2023-12-25 16:05:08,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21657 states, 21656 states have (on average 1.662356852604359) internal successors, (36000), 21656 states have internal predecessors, (36000), 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 16:05:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21657 states to 21657 states and 36000 transitions. [2023-12-25 16:05:08,998 INFO L78 Accepts]: Start accepts. Automaton has 21657 states and 36000 transitions. Word has length 840 [2023-12-25 16:05:09,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:05:09,063 INFO L495 AbstractCegarLoop]: Abstraction has 21657 states and 36000 transitions. [2023-12-25 16:05:09,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 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 16:05:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 21657 states and 36000 transitions. [2023-12-25 16:05:09,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2023-12-25 16:05:09,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:05:09,077 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:09,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-25 16:05:09,078 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:05:09,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:05:09,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1951692954, now seen corresponding path program 1 times [2023-12-25 16:05:09,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:05:09,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688023765] [2023-12-25 16:05:09,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:05:09,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:05:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:05:10,939 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 16:05:10,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:05:10,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688023765] [2023-12-25 16:05:10,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688023765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:05:10,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:05:10,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:05:10,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025764803] [2023-12-25 16:05:10,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:05:10,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 16:05:10,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:05:10,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 16:05:10,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:05:10,945 INFO L87 Difference]: Start difference. First operand 21657 states and 36000 transitions. Second operand has 4 states, 4 states have (on average 210.25) internal successors, (841), 4 states have internal predecessors, (841), 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 16:05:11,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:05:11,445 INFO L93 Difference]: Finished difference Result 42977 states and 71438 transitions. [2023-12-25 16:05:11,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 16:05:11,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 210.25) internal successors, (841), 4 states have internal predecessors, (841), 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 841 [2023-12-25 16:05:11,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:05:11,477 INFO L225 Difference]: With dead ends: 42977 [2023-12-25 16:05:11,477 INFO L226 Difference]: Without dead ends: 21660 [2023-12-25 16:05:11,505 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 16:05:11,507 INFO L413 NwaCegarLoop]: 35994 mSDtfsCounter, 1 mSDsluCounter, 71981 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 107975 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 16:05:11,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 107975 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 16:05:11,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21660 states. [2023-12-25 16:05:11,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21660 to 21659. [2023-12-25 16:05:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21659 states, 21658 states have (on average 1.6622956875057715) internal successors, (36002), 21658 states have internal predecessors, (36002), 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 16:05:11,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21659 states to 21659 states and 36002 transitions. [2023-12-25 16:05:11,794 INFO L78 Accepts]: Start accepts. Automaton has 21659 states and 36002 transitions. Word has length 841 [2023-12-25 16:05:11,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:05:11,795 INFO L495 AbstractCegarLoop]: Abstraction has 21659 states and 36002 transitions. [2023-12-25 16:05:11,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 210.25) internal successors, (841), 4 states have internal predecessors, (841), 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 16:05:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 21659 states and 36002 transitions. [2023-12-25 16:05:11,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2023-12-25 16:05:11,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:05:11,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:11,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-25 16:05:11,808 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:05:11,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:05:11,808 INFO L85 PathProgramCache]: Analyzing trace with hash -583366760, now seen corresponding path program 1 times [2023-12-25 16:05:11,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:05:11,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762913747] [2023-12-25 16:05:11,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:05:11,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:05:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:05:15,581 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 16:05:15,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:05:15,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762913747] [2023-12-25 16:05:15,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762913747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:05:15,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:05:15,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:05:15,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074976864] [2023-12-25 16:05:15,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:05:15,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 16:05:15,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:05:15,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 16:05:15,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:05:15,584 INFO L87 Difference]: Start difference. First operand 21659 states and 36002 transitions. Second operand has 4 states, 4 states have (on average 210.5) internal successors, (842), 4 states have internal predecessors, (842), 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 16:05:19,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:05:19,633 INFO L93 Difference]: Finished difference Result 63721 states and 105726 transitions. [2023-12-25 16:05:19,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 16:05:19,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 210.5) internal successors, (842), 4 states have internal predecessors, (842), 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 842 [2023-12-25 16:05:19,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:05:19,666 INFO L225 Difference]: With dead ends: 63721 [2023-12-25 16:05:19,666 INFO L226 Difference]: Without dead ends: 21659 [2023-12-25 16:05:19,699 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 16:05:19,704 INFO L413 NwaCegarLoop]: 36624 mSDtfsCounter, 33625 mSDsluCounter, 70265 mSDsCounter, 0 mSdLazyCounter, 3502 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33625 SdHoareTripleChecker+Valid, 106889 SdHoareTripleChecker+Invalid, 4073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 3502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-25 16:05:19,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33625 Valid, 106889 Invalid, 4073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [571 Valid, 3502 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-25 16:05:19,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21659 states. [2023-12-25 16:05:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21659 to 21659. [2023-12-25 16:05:20,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21659 states, 21658 states have (on average 1.6622495151906918) internal successors, (36001), 21658 states have internal predecessors, (36001), 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 16:05:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21659 states to 21659 states and 36001 transitions. [2023-12-25 16:05:20,153 INFO L78 Accepts]: Start accepts. Automaton has 21659 states and 36001 transitions. Word has length 842 [2023-12-25 16:05:20,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:05:20,154 INFO L495 AbstractCegarLoop]: Abstraction has 21659 states and 36001 transitions. [2023-12-25 16:05:20,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 210.5) internal successors, (842), 4 states have internal predecessors, (842), 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 16:05:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 21659 states and 36001 transitions. [2023-12-25 16:05:20,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2023-12-25 16:05:20,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:05:20,160 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:20,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-25 16:05:20,160 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:05:20,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:05:20,161 INFO L85 PathProgramCache]: Analyzing trace with hash -353899108, now seen corresponding path program 1 times [2023-12-25 16:05:20,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:05:20,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510776994] [2023-12-25 16:05:20,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:05:20,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:05:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:05:23,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 16:05:23,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:05:23,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510776994] [2023-12-25 16:05:23,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510776994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:05:23,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:05:23,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:05:23,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308227883] [2023-12-25 16:05:23,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:05:23,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 16:05:23,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:05:23,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 16:05:23,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:05:23,590 INFO L87 Difference]: Start difference. First operand 21659 states and 36001 transitions. Second operand has 4 states, 4 states have (on average 210.75) internal successors, (843), 4 states have internal predecessors, (843), 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 16:05:27,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:05:27,060 INFO L93 Difference]: Finished difference Result 42978 states and 71436 transitions. [2023-12-25 16:05:27,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 16:05:27,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 210.75) internal successors, (843), 4 states have internal predecessors, (843), 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 843 [2023-12-25 16:05:27,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:05:27,081 INFO L225 Difference]: With dead ends: 42978 [2023-12-25 16:05:27,082 INFO L226 Difference]: Without dead ends: 21659 [2023-12-25 16:05:27,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:05:27,099 INFO L413 NwaCegarLoop]: 33644 mSDtfsCounter, 35921 mSDsluCounter, 33642 mSDsCounter, 0 mSdLazyCounter, 4700 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35921 SdHoareTripleChecker+Valid, 67286 SdHoareTripleChecker+Invalid, 4701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 16:05:27,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35921 Valid, 67286 Invalid, 4701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4700 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 16:05:27,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21659 states. [2023-12-25 16:05:27,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21659 to 21659. [2023-12-25 16:05:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21659 states, 21658 states have (on average 1.6622033428756118) internal successors, (36000), 21658 states have internal predecessors, (36000), 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 16:05:27,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21659 states to 21659 states and 36000 transitions. [2023-12-25 16:05:27,342 INFO L78 Accepts]: Start accepts. Automaton has 21659 states and 36000 transitions. Word has length 843 [2023-12-25 16:05:27,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:05:27,343 INFO L495 AbstractCegarLoop]: Abstraction has 21659 states and 36000 transitions. [2023-12-25 16:05:27,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 210.75) internal successors, (843), 4 states have internal predecessors, (843), 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 16:05:27,343 INFO L276 IsEmpty]: Start isEmpty. Operand 21659 states and 36000 transitions. [2023-12-25 16:05:27,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 845 [2023-12-25 16:05:27,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:05:27,349 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:27,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-25 16:05:27,349 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:05:27,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:05:27,350 INFO L85 PathProgramCache]: Analyzing trace with hash 301461548, now seen corresponding path program 1 times [2023-12-25 16:05:27,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:05:27,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048496419] [2023-12-25 16:05:27,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:05:27,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:05:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:05:34,256 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 16:05:34,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:05:34,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048496419] [2023-12-25 16:05:34,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048496419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:05:34,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:05:34,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 16:05:34,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030439544] [2023-12-25 16:05:34,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:05:34,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 16:05:34,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:05:34,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 16:05:34,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 16:05:34,258 INFO L87 Difference]: Start difference. First operand 21659 states and 36000 transitions. Second operand has 6 states, 6 states have (on average 140.66666666666666) internal successors, (844), 5 states have internal predecessors, (844), 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 16:05:40,860 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 16:05:41,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:05:41,135 INFO L93 Difference]: Finished difference Result 65230 states and 108413 transitions. [2023-12-25 16:05:41,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 16:05:41,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 140.66666666666666) internal successors, (844), 5 states have internal predecessors, (844), 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 844 [2023-12-25 16:05:41,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:05:41,170 INFO L225 Difference]: With dead ends: 65230 [2023-12-25 16:05:41,171 INFO L226 Difference]: Without dead ends: 43911 [2023-12-25 16:05:41,187 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 16:05:41,188 INFO L413 NwaCegarLoop]: 37387 mSDtfsCounter, 178417 mSDsluCounter, 107557 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178417 SdHoareTripleChecker+Valid, 144944 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-25 16:05:41,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178417 Valid, 144944 Invalid, 579 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 578 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2023-12-25 16:05:41,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43911 states. [2023-12-25 16:05:41,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43911 to 22593. [2023-12-25 16:05:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22593 states, 22592 states have (on average 1.6619157223796035) internal successors, (37546), 22592 states have internal predecessors, (37546), 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 16:05:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22593 states to 22593 states and 37546 transitions. [2023-12-25 16:05:41,543 INFO L78 Accepts]: Start accepts. Automaton has 22593 states and 37546 transitions. Word has length 844 [2023-12-25 16:05:41,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:05:41,545 INFO L495 AbstractCegarLoop]: Abstraction has 22593 states and 37546 transitions. [2023-12-25 16:05:41,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.66666666666666) internal successors, (844), 5 states have internal predecessors, (844), 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 16:05:41,546 INFO L276 IsEmpty]: Start isEmpty. Operand 22593 states and 37546 transitions. [2023-12-25 16:05:41,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 846 [2023-12-25 16:05:41,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:05:41,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:41,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-25 16:05:41,551 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:05:41,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:05:41,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1962258294, now seen corresponding path program 1 times [2023-12-25 16:05:41,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:05:41,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886555208] [2023-12-25 16:05:41,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:05:41,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:05:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:05:50,238 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 16:05:50,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:05:50,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886555208] [2023-12-25 16:05:50,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886555208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:05:50,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:05:50,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 16:05:50,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297816120] [2023-12-25 16:05:50,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:05:50,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 16:05:50,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:05:50,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 16:05:50,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:05:50,241 INFO L87 Difference]: Start difference. First operand 22593 states and 37546 transitions. Second operand has 4 states, 4 states have (on average 211.25) internal successors, (845), 4 states have internal predecessors, (845), 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 16:05:53,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:05:53,696 INFO L93 Difference]: Finished difference Result 44045 states and 73196 transitions. [2023-12-25 16:05:53,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 16:05:53,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 211.25) internal successors, (845), 4 states have internal predecessors, (845), 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 845 [2023-12-25 16:05:53,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:05:53,715 INFO L225 Difference]: With dead ends: 44045 [2023-12-25 16:05:53,715 INFO L226 Difference]: Without dead ends: 22593 [2023-12-25 16:05:53,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:05:53,731 INFO L413 NwaCegarLoop]: 33644 mSDtfsCounter, 35989 mSDsluCounter, 33642 mSDsCounter, 0 mSdLazyCounter, 4698 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35989 SdHoareTripleChecker+Valid, 67286 SdHoareTripleChecker+Invalid, 4699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-25 16:05:53,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35989 Valid, 67286 Invalid, 4699 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4698 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-25 16:05:53,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22593 states. [2023-12-25 16:05:53,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22593 to 22593. [2023-12-25 16:05:53,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22593 states, 22592 states have (on average 1.6618271954674222) internal successors, (37544), 22592 states have internal predecessors, (37544), 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 16:05:53,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22593 states to 22593 states and 37544 transitions. [2023-12-25 16:05:53,980 INFO L78 Accepts]: Start accepts. Automaton has 22593 states and 37544 transitions. Word has length 845 [2023-12-25 16:05:53,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:05:53,981 INFO L495 AbstractCegarLoop]: Abstraction has 22593 states and 37544 transitions. [2023-12-25 16:05:53,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 211.25) internal successors, (845), 4 states have internal predecessors, (845), 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 16:05:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 22593 states and 37544 transitions. [2023-12-25 16:05:53,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2023-12-25 16:05:53,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:05:53,989 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:53,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-25 16:05:53,989 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:05:53,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:05:53,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1100096476, now seen corresponding path program 1 times [2023-12-25 16:05:53,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:05:53,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202410194] [2023-12-25 16:05:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:05:53,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:05:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:05:59,005 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 16:05:59,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:05:59,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202410194] [2023-12-25 16:05:59,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202410194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:05:59,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:05:59,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-25 16:05:59,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660428579] [2023-12-25 16:05:59,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:05:59,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 16:05:59,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:05:59,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 16:05:59,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:05:59,008 INFO L87 Difference]: Start difference. First operand 22593 states and 37544 transitions. Second operand has 4 states, 4 states have (on average 211.5) internal successors, (846), 3 states have internal predecessors, (846), 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 16:06:02,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:06:02,400 INFO L93 Difference]: Finished difference Result 44054 states and 73207 transitions. [2023-12-25 16:06:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 16:06:02,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 211.5) internal successors, (846), 3 states have internal predecessors, (846), 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 846 [2023-12-25 16:06:02,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:06:02,420 INFO L225 Difference]: With dead ends: 44054 [2023-12-25 16:06:02,421 INFO L226 Difference]: Without dead ends: 22593 [2023-12-25 16:06:02,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-25 16:06:02,436 INFO L413 NwaCegarLoop]: 33644 mSDtfsCounter, 35247 mSDsluCounter, 33642 mSDsCounter, 0 mSdLazyCounter, 4697 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35247 SdHoareTripleChecker+Valid, 67286 SdHoareTripleChecker+Invalid, 4697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-25 16:06:02,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35247 Valid, 67286 Invalid, 4697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4697 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-25 16:06:02,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22593 states. [2023-12-25 16:06:02,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22593 to 22593. [2023-12-25 16:06:02,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22593 states, 22592 states have (on average 1.6617386685552409) internal successors, (37542), 22592 states have internal predecessors, (37542), 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 16:06:02,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22593 states to 22593 states and 37542 transitions. [2023-12-25 16:06:02,701 INFO L78 Accepts]: Start accepts. Automaton has 22593 states and 37542 transitions. Word has length 846 [2023-12-25 16:06:02,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:06:02,702 INFO L495 AbstractCegarLoop]: Abstraction has 22593 states and 37542 transitions. [2023-12-25 16:06:02,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 211.5) internal successors, (846), 3 states have internal predecessors, (846), 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 16:06:02,702 INFO L276 IsEmpty]: Start isEmpty. Operand 22593 states and 37542 transitions. [2023-12-25 16:06:02,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2023-12-25 16:06:02,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:06:02,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:06:02,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-25 16:06:02,708 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:06:02,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:06:02,709 INFO L85 PathProgramCache]: Analyzing trace with hash 797400290, now seen corresponding path program 1 times [2023-12-25 16:06:02,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:06:02,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884886126] [2023-12-25 16:06:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:06:02,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 16:06:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 16:06:12,101 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 16:06:12,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 16:06:12,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884886126] [2023-12-25 16:06:12,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884886126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 16:06:12,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 16:06:12,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 16:06:12,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617662147] [2023-12-25 16:06:12,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 16:06:12,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 16:06:12,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 16:06:12,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 16:06:12,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 16:06:12,104 INFO L87 Difference]: Start difference. First operand 22593 states and 37542 transitions. Second operand has 7 states, 7 states have (on average 120.85714285714286) internal successors, (846), 6 states have internal predecessors, (846), 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 16:06:39,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 16:06:39,271 INFO L93 Difference]: Finished difference Result 65504 states and 108845 transitions. [2023-12-25 16:06:39,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 16:06:39,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 120.85714285714286) internal successors, (846), 6 states have internal predecessors, (846), 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 846 [2023-12-25 16:06:39,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 16:06:39,327 INFO L225 Difference]: With dead ends: 65504 [2023-12-25 16:06:39,327 INFO L226 Difference]: Without dead ends: 44055 [2023-12-25 16:06:39,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-25 16:06:39,361 INFO L413 NwaCegarLoop]: 59828 mSDtfsCounter, 70669 mSDsluCounter, 209620 mSDsCounter, 0 mSdLazyCounter, 52191 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70669 SdHoareTripleChecker+Valid, 269448 SdHoareTripleChecker+Invalid, 52193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2023-12-25 16:06:39,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70669 Valid, 269448 Invalid, 52193 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [2 Valid, 52191 Invalid, 0 Unknown, 0 Unchecked, 25.8s Time] [2023-12-25 16:06:39,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44055 states. [2023-12-25 16:06:39,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44055 to 22603. [2023-12-25 16:06:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22603 states, 22602 states have (on average 1.661534377488718) internal successors, (37554), 22602 states have internal predecessors, (37554), 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 16:06:39,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22603 states to 22603 states and 37554 transitions. [2023-12-25 16:06:39,717 INFO L78 Accepts]: Start accepts. Automaton has 22603 states and 37554 transitions. Word has length 846 [2023-12-25 16:06:39,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 16:06:39,718 INFO L495 AbstractCegarLoop]: Abstraction has 22603 states and 37554 transitions. [2023-12-25 16:06:39,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.85714285714286) internal successors, (846), 6 states have internal predecessors, (846), 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 16:06:39,718 INFO L276 IsEmpty]: Start isEmpty. Operand 22603 states and 37554 transitions. [2023-12-25 16:06:39,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2023-12-25 16:06:39,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 16:06:39,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:06:39,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-25 16:06:39,724 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 16:06:39,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 16:06:39,725 INFO L85 PathProgramCache]: Analyzing trace with hash -86108700, now seen corresponding path program 1 times [2023-12-25 16:06:39,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 16:06:39,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437292746] [2023-12-25 16:06:39,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 16:06:39,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms