/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.firewire_tree.1.prop1-back-serstep.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 18:08:37,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 18:08:37,699 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 18:08:37,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 18:08:37,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 18:08:37,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 18:08:37,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 18:08:37,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 18:08:37,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 18:08:37,736 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 18:08:37,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 18:08:37,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 18:08:37,737 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 18:08:37,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 18:08:37,739 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 18:08:37,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 18:08:37,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 18:08:37,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-25 18:08:37,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 18:08:37,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 18:08:37,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 18:08:37,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 18:08:37,741 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 18:08:37,741 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 18:08:37,741 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 18:08:37,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 18:08:37,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 18:08:37,742 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 18:08:37,742 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 18:08:37,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 18:08:37,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 18:08:37,743 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 18:08:37,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 18:08:37,743 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-25 18:08:37,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-25 18:08:37,743 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 18:08:37,743 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 18:08:37,744 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 18:08:37,744 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 18:08:37,744 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 18:08:37,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-25 18:08:37,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 18:08:37,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 18:08:37,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 18:08:37,947 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 18:08:37,947 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 18:08:37,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.firewire_tree.1.prop1-back-serstep.c [2023-12-25 18:08:39,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 18:08:39,852 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 18:08:39,852 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.firewire_tree.1.prop1-back-serstep.c [2023-12-25 18:08:39,947 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcd7bb6ca/b1ac782dadcc46e28f867841819971be/FLAG729b047ee [2023-12-25 18:08:39,962 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcd7bb6ca/b1ac782dadcc46e28f867841819971be [2023-12-25 18:08:39,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 18:08:39,995 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 18:08:39,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 18:08:40,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 18:08:40,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 18:08:40,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 06:08:39" (1/1) ... [2023-12-25 18:08:40,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a1a3c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:40, skipping insertion in model container [2023-12-25 18:08:40,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 06:08:39" (1/1) ... [2023-12-25 18:08:40,273 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 18:08:40,686 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.firewire_tree.1.prop1-back-serstep.c[1181,1194] [2023-12-25 18:08:43,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 18:08:43,049 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 18:08:43,059 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.firewire_tree.1.prop1-back-serstep.c[1181,1194] [2023-12-25 18:08:44,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 18:08:44,674 INFO L206 MainTranslator]: Completed translation [2023-12-25 18:08:44,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44 WrapperNode [2023-12-25 18:08:44,675 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 18:08:44,676 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 18:08:44,676 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 18:08:44,676 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 18:08:44,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:08:45,572 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:08:55,276 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 127675 [2023-12-25 18:08:55,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 18:08:55,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 18:08:55,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 18:08:55,278 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 18:08:55,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:08:55,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:08:59,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:09:00,401 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 18:09:00,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:09:00,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:09:04,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:09:04,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:09:05,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:09:05,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:09:08,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 18:09:08,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 18:09:08,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 18:09:08,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 18:09:08,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (1/1) ... [2023-12-25 18:09:08,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 18:09:08,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 18:09:08,168 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 18:09:08,176 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 18:09:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 18:09:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-25 18:09:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 18:09:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 18:09:12,199 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 18:09:12,201 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 18:09:58,298 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 18:10:00,168 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 18:10:00,168 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 18:10:00,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 06:10:00 BoogieIcfgContainer [2023-12-25 18:10:00,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 18:10:00,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 18:10:00,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 18:10:00,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 18:10:00,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 06:08:39" (1/3) ... [2023-12-25 18:10:00,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fecef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 06:10:00, skipping insertion in model container [2023-12-25 18:10:00,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 06:08:44" (2/3) ... [2023-12-25 18:10:00,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55fecef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 06:10:00, skipping insertion in model container [2023-12-25 18:10:00,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 06:10:00" (3/3) ... [2023-12-25 18:10:00,179 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.firewire_tree.1.prop1-back-serstep.c [2023-12-25 18:10:00,194 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 18:10:00,194 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 18:10:00,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 18:10:00,559 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;@4f718b2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 18:10:00,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 18:10:00,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 28144 states, 28142 states have (on average 1.6671878331319736) internal successors, (46918), 28143 states have internal predecessors, (46918), 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 18:10:01,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3029 [2023-12-25 18:10:01,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:10:01,024 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:10:01,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:10:01,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:10:01,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1784619402, now seen corresponding path program 1 times [2023-12-25 18:10:01,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:10:01,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235561823] [2023-12-25 18:10:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:10:01,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:10:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:10:15,151 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 18:10:15,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:10:15,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235561823] [2023-12-25 18:10:15,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235561823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:10:15,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:10:15,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 18:10:15,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595022281] [2023-12-25 18:10:15,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:10:15,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 18:10:15,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:10:15,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 18:10:15,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 18:10:15,255 INFO L87 Difference]: Start difference. First operand has 28144 states, 28142 states have (on average 1.6671878331319736) internal successors, (46918), 28143 states have internal predecessors, (46918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 757.0) internal successors, (3028), 4 states have internal predecessors, (3028), 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 18:10:16,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:10:16,649 INFO L93 Difference]: Finished difference Result 55354 states and 92282 transitions. [2023-12-25 18:10:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 18:10:16,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 757.0) internal successors, (3028), 4 states have internal predecessors, (3028), 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 3028 [2023-12-25 18:10:16,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:10:16,818 INFO L225 Difference]: With dead ends: 55354 [2023-12-25 18:10:16,818 INFO L226 Difference]: Without dead ends: 28144 [2023-12-25 18:10:16,897 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 18:10:16,901 INFO L413 NwaCegarLoop]: 46911 mSDtfsCounter, 1 mSDsluCounter, 93817 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 140728 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 18:10:16,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 140728 Invalid, 13 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 18:10:16,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28144 states. [2023-12-25 18:10:17,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28144 to 28144. [2023-12-25 18:10:17,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28144 states, 28143 states have (on average 1.6670575276267634) internal successors, (46916), 28143 states have internal predecessors, (46916), 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 18:10:18,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28144 states to 28144 states and 46916 transitions. [2023-12-25 18:10:18,073 INFO L78 Accepts]: Start accepts. Automaton has 28144 states and 46916 transitions. Word has length 3028 [2023-12-25 18:10:18,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:10:18,079 INFO L495 AbstractCegarLoop]: Abstraction has 28144 states and 46916 transitions. [2023-12-25 18:10:18,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 757.0) internal successors, (3028), 4 states have internal predecessors, (3028), 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 18:10:18,081 INFO L276 IsEmpty]: Start isEmpty. Operand 28144 states and 46916 transitions. [2023-12-25 18:10:18,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3030 [2023-12-25 18:10:18,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:10:18,553 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:10:18,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-25 18:10:18,568 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:10:18,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:10:18,570 INFO L85 PathProgramCache]: Analyzing trace with hash 513116478, now seen corresponding path program 1 times [2023-12-25 18:10:18,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:10:18,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810203372] [2023-12-25 18:10:18,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:10:18,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:10:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:10:30,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 18:10:30,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:10:30,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810203372] [2023-12-25 18:10:30,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810203372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:10:30,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:10:30,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 18:10:30,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418481203] [2023-12-25 18:10:30,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:10:30,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 18:10:30,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:10:30,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 18:10:30,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 18:10:30,975 INFO L87 Difference]: Start difference. First operand 28144 states and 46916 transitions. Second operand has 4 states, 4 states have (on average 757.25) internal successors, (3029), 4 states have internal predecessors, (3029), 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 18:10:32,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:10:32,288 INFO L93 Difference]: Finished difference Result 55357 states and 92280 transitions. [2023-12-25 18:10:32,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 18:10:32,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 757.25) internal successors, (3029), 4 states have internal predecessors, (3029), 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 3029 [2023-12-25 18:10:32,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:10:32,359 INFO L225 Difference]: With dead ends: 55357 [2023-12-25 18:10:32,360 INFO L226 Difference]: Without dead ends: 28147 [2023-12-25 18:10:32,395 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 18:10:32,397 INFO L413 NwaCegarLoop]: 46911 mSDtfsCounter, 1 mSDsluCounter, 93815 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 140726 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 18:10:32,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 140726 Invalid, 15 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 18:10:32,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28147 states. [2023-12-25 18:10:32,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28147 to 28146. [2023-12-25 18:10:32,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28146 states, 28145 states have (on average 1.667010126132528) internal successors, (46918), 28145 states have internal predecessors, (46918), 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 18:10:33,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28146 states to 28146 states and 46918 transitions. [2023-12-25 18:10:33,223 INFO L78 Accepts]: Start accepts. Automaton has 28146 states and 46918 transitions. Word has length 3029 [2023-12-25 18:10:33,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:10:33,233 INFO L495 AbstractCegarLoop]: Abstraction has 28146 states and 46918 transitions. [2023-12-25 18:10:33,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 757.25) internal successors, (3029), 4 states have internal predecessors, (3029), 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 18:10:33,234 INFO L276 IsEmpty]: Start isEmpty. Operand 28146 states and 46918 transitions. [2023-12-25 18:10:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3031 [2023-12-25 18:10:33,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:10:33,311 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:10:33,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-25 18:10:33,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:10:33,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:10:33,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1483672688, now seen corresponding path program 1 times [2023-12-25 18:10:33,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:10:33,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014071455] [2023-12-25 18:10:33,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:10:33,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:10:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:10:41,859 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 18:10:41,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:10:41,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014071455] [2023-12-25 18:10:41,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014071455] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:10:41,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:10:41,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 18:10:41,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693533345] [2023-12-25 18:10:41,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:10:41,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 18:10:41,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:10:41,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 18:10:41,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 18:10:41,872 INFO L87 Difference]: Start difference. First operand 28146 states and 46918 transitions. Second operand has 4 states, 4 states have (on average 757.5) internal successors, (3030), 4 states have internal predecessors, (3030), 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 18:10:43,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:10:43,712 INFO L93 Difference]: Finished difference Result 82564 states and 137633 transitions. [2023-12-25 18:10:43,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:10:43,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 757.5) internal successors, (3030), 4 states have internal predecessors, (3030), 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 3030 [2023-12-25 18:10:43,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:10:43,846 INFO L225 Difference]: With dead ends: 82564 [2023-12-25 18:10:43,847 INFO L226 Difference]: Without dead ends: 55352 [2023-12-25 18:10:43,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:10:43,874 INFO L413 NwaCegarLoop]: 52906 mSDtfsCounter, 45349 mSDsluCounter, 99808 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45349 SdHoareTripleChecker+Valid, 152714 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 18:10:43,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45349 Valid, 152714 Invalid, 19 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 18:10:44,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55352 states. [2023-12-25 18:10:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55352 to 28148. [2023-12-25 18:10:44,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28148 states, 28147 states have (on average 1.6669627313745692) internal successors, (46920), 28147 states have internal predecessors, (46920), 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 18:10:44,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28148 states to 28148 states and 46920 transitions. [2023-12-25 18:10:44,900 INFO L78 Accepts]: Start accepts. Automaton has 28148 states and 46920 transitions. Word has length 3030 [2023-12-25 18:10:44,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:10:44,904 INFO L495 AbstractCegarLoop]: Abstraction has 28148 states and 46920 transitions. [2023-12-25 18:10:44,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 757.5) internal successors, (3030), 4 states have internal predecessors, (3030), 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 18:10:44,907 INFO L276 IsEmpty]: Start isEmpty. Operand 28148 states and 46920 transitions. [2023-12-25 18:10:45,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3032 [2023-12-25 18:10:45,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:10:45,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:10:45,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-25 18:10:45,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:10:45,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:10:45,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1837282462, now seen corresponding path program 1 times [2023-12-25 18:10:45,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:10:45,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294983524] [2023-12-25 18:10:45,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:10:45,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:10:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:10:53,829 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 18:10:53,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:10:53,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294983524] [2023-12-25 18:10:53,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294983524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:10:53,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:10:53,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 18:10:53,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925512342] [2023-12-25 18:10:53,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:10:53,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 18:10:53,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:10:53,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 18:10:53,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 18:10:53,853 INFO L87 Difference]: Start difference. First operand 28148 states and 46920 transitions. Second operand has 4 states, 4 states have (on average 757.75) internal successors, (3031), 4 states have internal predecessors, (3031), 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 18:10:55,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:10:55,244 INFO L93 Difference]: Finished difference Result 82567 states and 137634 transitions. [2023-12-25 18:10:55,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:10:55,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 757.75) internal successors, (3031), 4 states have internal predecessors, (3031), 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 3031 [2023-12-25 18:10:55,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:10:55,418 INFO L225 Difference]: With dead ends: 82567 [2023-12-25 18:10:55,418 INFO L226 Difference]: Without dead ends: 55353 [2023-12-25 18:10:55,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:10:55,470 INFO L413 NwaCegarLoop]: 52901 mSDtfsCounter, 45346 mSDsluCounter, 99803 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45346 SdHoareTripleChecker+Valid, 152704 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 18:10:55,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45346 Valid, 152704 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 18:10:55,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55353 states. [2023-12-25 18:10:56,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55353 to 28150. [2023-12-25 18:10:56,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28150 states, 28149 states have (on average 1.6669153433514512) internal successors, (46922), 28149 states have internal predecessors, (46922), 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 18:10:56,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28150 states to 28150 states and 46922 transitions. [2023-12-25 18:10:56,490 INFO L78 Accepts]: Start accepts. Automaton has 28150 states and 46922 transitions. Word has length 3031 [2023-12-25 18:10:56,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:10:56,493 INFO L495 AbstractCegarLoop]: Abstraction has 28150 states and 46922 transitions. [2023-12-25 18:10:56,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 757.75) internal successors, (3031), 4 states have internal predecessors, (3031), 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 18:10:56,494 INFO L276 IsEmpty]: Start isEmpty. Operand 28150 states and 46922 transitions. [2023-12-25 18:10:56,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3033 [2023-12-25 18:10:56,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:10:56,590 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:10:56,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-25 18:10:56,591 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:10:56,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:10:56,592 INFO L85 PathProgramCache]: Analyzing trace with hash -703444760, now seen corresponding path program 1 times [2023-12-25 18:10:56,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:10:56,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762804193] [2023-12-25 18:10:56,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:10:56,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:10:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:11:08,292 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 18:11:08,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:11:08,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762804193] [2023-12-25 18:11:08,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762804193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:11:08,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:11:08,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 18:11:08,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381549036] [2023-12-25 18:11:08,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:11:08,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 18:11:08,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:11:08,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 18:11:08,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 18:11:08,303 INFO L87 Difference]: Start difference. First operand 28150 states and 46922 transitions. Second operand has 5 states, 5 states have (on average 606.4) internal successors, (3032), 5 states have internal predecessors, (3032), 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 18:11:09,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:11:09,850 INFO L93 Difference]: Finished difference Result 82570 states and 137635 transitions. [2023-12-25 18:11:09,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:11:09,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 606.4) internal successors, (3032), 5 states have internal predecessors, (3032), 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 3032 [2023-12-25 18:11:09,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:11:09,947 INFO L225 Difference]: With dead ends: 82570 [2023-12-25 18:11:09,947 INFO L226 Difference]: Without dead ends: 55354 [2023-12-25 18:11:10,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 18:11:10,020 INFO L413 NwaCegarLoop]: 52896 mSDtfsCounter, 45343 mSDsluCounter, 152691 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45343 SdHoareTripleChecker+Valid, 205587 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 18:11:10,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45343 Valid, 205587 Invalid, 27 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 18:11:10,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55354 states. [2023-12-25 18:11:10,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55354 to 28152. [2023-12-25 18:11:10,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28152 states, 28151 states have (on average 1.6668679620617384) internal successors, (46924), 28151 states have internal predecessors, (46924), 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 18:11:11,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28152 states to 28152 states and 46924 transitions. [2023-12-25 18:11:11,005 INFO L78 Accepts]: Start accepts. Automaton has 28152 states and 46924 transitions. Word has length 3032 [2023-12-25 18:11:11,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:11:11,007 INFO L495 AbstractCegarLoop]: Abstraction has 28152 states and 46924 transitions. [2023-12-25 18:11:11,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 606.4) internal successors, (3032), 5 states have internal predecessors, (3032), 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 18:11:11,008 INFO L276 IsEmpty]: Start isEmpty. Operand 28152 states and 46924 transitions. [2023-12-25 18:11:11,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3034 [2023-12-25 18:11:11,068 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:11:11,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:11:11,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-25 18:11:11,069 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:11:11,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:11:11,070 INFO L85 PathProgramCache]: Analyzing trace with hash -175424184, now seen corresponding path program 1 times [2023-12-25 18:11:11,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:11:11,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527040538] [2023-12-25 18:11:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:11:11,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:11:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:11:22,744 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 18:11:22,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:11:22,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527040538] [2023-12-25 18:11:22,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527040538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:11:22,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:11:22,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 18:11:22,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972747516] [2023-12-25 18:11:22,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:11:22,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 18:11:22,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:11:22,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 18:11:22,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 18:11:22,753 INFO L87 Difference]: Start difference. First operand 28152 states and 46924 transitions. Second operand has 6 states, 6 states have (on average 505.5) internal successors, (3033), 5 states have internal predecessors, (3033), 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 18:11:46,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:11:46,225 INFO L93 Difference]: Finished difference Result 130097 states and 215304 transitions. [2023-12-25 18:11:46,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 18:11:46,227 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 505.5) internal successors, (3033), 5 states have internal predecessors, (3033), 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 3033 [2023-12-25 18:11:46,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:11:46,314 INFO L225 Difference]: With dead ends: 130097 [2023-12-25 18:11:46,315 INFO L226 Difference]: Without dead ends: 55370 [2023-12-25 18:11:46,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-25 18:11:46,401 INFO L413 NwaCegarLoop]: 46160 mSDtfsCounter, 315190 mSDsluCounter, 126039 mSDsCounter, 0 mSdLazyCounter, 19244 mSolverCounterSat, 4655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315190 SdHoareTripleChecker+Valid, 172199 SdHoareTripleChecker+Invalid, 23899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 4655 IncrementalHoareTripleChecker+Valid, 19244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2023-12-25 18:11:46,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315190 Valid, 172199 Invalid, 23899 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [4655 Valid, 19244 Invalid, 0 Unknown, 0 Unchecked, 21.5s Time] [2023-12-25 18:11:46,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55370 states. [2023-12-25 18:11:46,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55370 to 30413. [2023-12-25 18:11:46,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30413 states, 30412 states have (on average 1.6668091542812047) internal successors, (50691), 30412 states have internal predecessors, (50691), 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 18:11:46,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30413 states to 30413 states and 50691 transitions. [2023-12-25 18:11:46,934 INFO L78 Accepts]: Start accepts. Automaton has 30413 states and 50691 transitions. Word has length 3033 [2023-12-25 18:11:46,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:11:46,936 INFO L495 AbstractCegarLoop]: Abstraction has 30413 states and 50691 transitions. [2023-12-25 18:11:46,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 505.5) internal successors, (3033), 5 states have internal predecessors, (3033), 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 18:11:46,937 INFO L276 IsEmpty]: Start isEmpty. Operand 30413 states and 50691 transitions. [2023-12-25 18:11:47,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3035 [2023-12-25 18:11:47,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:11:47,161 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:11:47,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-25 18:11:47,161 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:11:47,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:11:47,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1086615398, now seen corresponding path program 1 times [2023-12-25 18:11:47,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:11:47,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858711791] [2023-12-25 18:11:47,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:11:47,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:11:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:11:53,407 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 18:11:53,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:11:53,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858711791] [2023-12-25 18:11:53,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858711791] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:11:53,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:11:53,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 18:11:53,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245058404] [2023-12-25 18:11:53,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:11:53,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 18:11:53,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:11:53,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 18:11:53,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 18:11:53,428 INFO L87 Difference]: Start difference. First operand 30413 states and 50691 transitions. Second operand has 6 states, 6 states have (on average 505.6666666666667) internal successors, (3034), 5 states have internal predecessors, (3034), 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 18:12:11,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:12:11,384 INFO L93 Difference]: Finished difference Result 83836 states and 139530 transitions. [2023-12-25 18:12:11,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 18:12:11,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 505.6666666666667) internal successors, (3034), 5 states have internal predecessors, (3034), 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 3034 [2023-12-25 18:12:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:12:11,447 INFO L225 Difference]: With dead ends: 83836 [2023-12-25 18:12:11,448 INFO L226 Difference]: Without dead ends: 56618 [2023-12-25 18:12:11,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-25 18:12:11,470 INFO L413 NwaCegarLoop]: 38221 mSDtfsCounter, 179575 mSDsluCounter, 84415 mSDsCounter, 0 mSdLazyCounter, 23742 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179575 SdHoareTripleChecker+Valid, 122636 SdHoareTripleChecker+Invalid, 24366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 23742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2023-12-25 18:12:11,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179575 Valid, 122636 Invalid, 24366 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [624 Valid, 23742 Invalid, 0 Unknown, 0 Unchecked, 16.7s Time] [2023-12-25 18:12:11,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56618 states. [2023-12-25 18:12:11,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56618 to 30419. [2023-12-25 18:12:11,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30419 states, 30418 states have (on average 1.66677625090407) internal successors, (50700), 30418 states have internal predecessors, (50700), 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 18:12:11,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30419 states to 30419 states and 50700 transitions. [2023-12-25 18:12:11,971 INFO L78 Accepts]: Start accepts. Automaton has 30419 states and 50700 transitions. Word has length 3034 [2023-12-25 18:12:11,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:12:11,972 INFO L495 AbstractCegarLoop]: Abstraction has 30419 states and 50700 transitions. [2023-12-25 18:12:11,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 505.6666666666667) internal successors, (3034), 5 states have internal predecessors, (3034), 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 18:12:11,973 INFO L276 IsEmpty]: Start isEmpty. Operand 30419 states and 50700 transitions. [2023-12-25 18:12:12,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3036 [2023-12-25 18:12:12,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:12:12,026 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:12,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-25 18:12:12,026 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:12:12,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:12:12,027 INFO L85 PathProgramCache]: Analyzing trace with hash -335377836, now seen corresponding path program 1 times [2023-12-25 18:12:12,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:12:12,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897324339] [2023-12-25 18:12:12,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:12:12,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:12:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:12:18,474 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 18:12:18,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:12:18,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897324339] [2023-12-25 18:12:18,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897324339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:12:18,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:12:18,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 18:12:18,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487279184] [2023-12-25 18:12:18,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:12:18,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 18:12:18,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:12:18,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 18:12:18,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 18:12:18,480 INFO L87 Difference]: Start difference. First operand 30419 states and 50700 transitions. Second operand has 6 states, 6 states have (on average 505.8333333333333) internal successors, (3035), 5 states have internal predecessors, (3035), 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 18:12:48,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:12:48,190 INFO L93 Difference]: Finished difference Result 83836 states and 139529 transitions. [2023-12-25 18:12:48,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 18:12:48,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 505.8333333333333) internal successors, (3035), 5 states have internal predecessors, (3035), 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 3035 [2023-12-25 18:12:48,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:12:48,248 INFO L225 Difference]: With dead ends: 83836 [2023-12-25 18:12:48,248 INFO L226 Difference]: Without dead ends: 56618 [2023-12-25 18:12:48,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-25 18:12:48,272 INFO L413 NwaCegarLoop]: 38222 mSDtfsCounter, 136111 mSDsluCounter, 118761 mSDsCounter, 0 mSdLazyCounter, 34414 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136111 SdHoareTripleChecker+Valid, 156983 SdHoareTripleChecker+Invalid, 35038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 34414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2023-12-25 18:12:48,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136111 Valid, 156983 Invalid, 35038 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [624 Valid, 34414 Invalid, 0 Unknown, 0 Unchecked, 28.4s Time] [2023-12-25 18:12:48,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56618 states. [2023-12-25 18:12:48,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56618 to 30425. [2023-12-25 18:12:48,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30425 states, 30424 states have (on average 1.6667433605048645) internal successors, (50709), 30424 states have internal predecessors, (50709), 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 18:12:48,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30425 states to 30425 states and 50709 transitions. [2023-12-25 18:12:48,920 INFO L78 Accepts]: Start accepts. Automaton has 30425 states and 50709 transitions. Word has length 3035 [2023-12-25 18:12:48,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:12:48,933 INFO L495 AbstractCegarLoop]: Abstraction has 30425 states and 50709 transitions. [2023-12-25 18:12:48,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 505.8333333333333) internal successors, (3035), 5 states have internal predecessors, (3035), 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 18:12:48,934 INFO L276 IsEmpty]: Start isEmpty. Operand 30425 states and 50709 transitions. [2023-12-25 18:12:48,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3037 [2023-12-25 18:12:48,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:12:48,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:48,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-25 18:12:48,992 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:12:48,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:12:48,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2097765490, now seen corresponding path program 1 times [2023-12-25 18:12:48,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:12:48,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903402994] [2023-12-25 18:12:48,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:12:48,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:12:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:12:57,105 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 18:12:57,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:12:57,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903402994] [2023-12-25 18:12:57,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903402994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:12:57,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:12:57,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 18:12:57,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515352062] [2023-12-25 18:12:57,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:12:57,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 18:12:57,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:12:57,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 18:12:57,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 18:12:57,110 INFO L87 Difference]: Start difference. First operand 30425 states and 50709 transitions. Second operand has 5 states, 5 states have (on average 607.2) internal successors, (3036), 4 states have internal predecessors, (3036), 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 18:13:23,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:13:23,245 INFO L93 Difference]: Finished difference Result 82588 states and 137657 transitions. [2023-12-25 18:13:23,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:13:23,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 607.2) internal successors, (3036), 4 states have internal predecessors, (3036), 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 3036 [2023-12-25 18:13:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:13:23,294 INFO L225 Difference]: With dead ends: 82588 [2023-12-25 18:13:23,294 INFO L226 Difference]: Without dead ends: 55370 [2023-12-25 18:13:23,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-25 18:13:23,313 INFO L413 NwaCegarLoop]: 35618 mSDtfsCounter, 135484 mSDsluCounter, 71229 mSDsCounter, 0 mSdLazyCounter, 33894 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135484 SdHoareTripleChecker+Valid, 106847 SdHoareTripleChecker+Invalid, 33894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2023-12-25 18:13:23,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135484 Valid, 106847 Invalid, 33894 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 33894 Invalid, 0 Unknown, 0 Unchecked, 25.0s Time] [2023-12-25 18:13:23,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55370 states. [2023-12-25 18:13:23,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55370 to 30426. [2023-12-25 18:13:23,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30426 states, 30425 states have (on average 1.666721446179129) internal successors, (50710), 30425 states have internal predecessors, (50710), 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 18:13:23,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30426 states to 30426 states and 50710 transitions. [2023-12-25 18:13:23,758 INFO L78 Accepts]: Start accepts. Automaton has 30426 states and 50710 transitions. Word has length 3036 [2023-12-25 18:13:23,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:13:23,759 INFO L495 AbstractCegarLoop]: Abstraction has 30426 states and 50710 transitions. [2023-12-25 18:13:23,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 607.2) internal successors, (3036), 4 states have internal predecessors, (3036), 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 18:13:23,760 INFO L276 IsEmpty]: Start isEmpty. Operand 30426 states and 50710 transitions. [2023-12-25 18:13:23,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3037 [2023-12-25 18:13:23,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:13:23,971 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:23,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-25 18:13:23,971 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:13:23,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:13:23,972 INFO L85 PathProgramCache]: Analyzing trace with hash 501650676, now seen corresponding path program 1 times [2023-12-25 18:13:23,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:13:23,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179507587] [2023-12-25 18:13:23,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:13:23,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:13:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:13:29,900 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 18:13:29,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:13:29,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179507587] [2023-12-25 18:13:29,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179507587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:13:29,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:13:29,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 18:13:29,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869577995] [2023-12-25 18:13:29,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:13:29,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 18:13:29,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:13:29,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 18:13:29,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 18:13:29,908 INFO L87 Difference]: Start difference. First operand 30426 states and 50710 transitions. Second operand has 5 states, 5 states have (on average 607.2) internal successors, (3036), 5 states have internal predecessors, (3036), 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 18:13:31,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:13:31,156 INFO L93 Difference]: Finished difference Result 84847 states and 141422 transitions. [2023-12-25 18:13:31,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:13:31,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 607.2) internal successors, (3036), 5 states have internal predecessors, (3036), 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 3036 [2023-12-25 18:13:31,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:13:31,238 INFO L225 Difference]: With dead ends: 84847 [2023-12-25 18:13:31,239 INFO L226 Difference]: Without dead ends: 57629 [2023-12-25 18:13:31,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 18:13:31,270 INFO L413 NwaCegarLoop]: 52887 mSDtfsCounter, 45340 mSDsluCounter, 152673 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45340 SdHoareTripleChecker+Valid, 205560 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 18:13:31,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45340 Valid, 205560 Invalid, 27 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 18:13:31,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57629 states. [2023-12-25 18:13:32,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57629 to 30428. [2023-12-25 18:13:32,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30428 states, 30427 states have (on average 1.6666776218490156) internal successors, (50712), 30427 states have internal predecessors, (50712), 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 18:13:32,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30428 states to 30428 states and 50712 transitions. [2023-12-25 18:13:32,130 INFO L78 Accepts]: Start accepts. Automaton has 30428 states and 50712 transitions. Word has length 3036 [2023-12-25 18:13:32,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:13:32,133 INFO L495 AbstractCegarLoop]: Abstraction has 30428 states and 50712 transitions. [2023-12-25 18:13:32,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 607.2) internal successors, (3036), 5 states have internal predecessors, (3036), 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 18:13:32,135 INFO L276 IsEmpty]: Start isEmpty. Operand 30428 states and 50712 transitions. [2023-12-25 18:13:32,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3038 [2023-12-25 18:13:32,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:13:32,202 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:32,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-25 18:13:32,203 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:13:32,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:13:32,204 INFO L85 PathProgramCache]: Analyzing trace with hash -693119018, now seen corresponding path program 1 times [2023-12-25 18:13:32,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:13:32,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255014499] [2023-12-25 18:13:32,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:13:32,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:13:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:13:41,117 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 18:13:41,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:13:41,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255014499] [2023-12-25 18:13:41,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255014499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:13:41,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:13:41,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 18:13:41,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398727668] [2023-12-25 18:13:41,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:13:41,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 18:13:41,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:13:41,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 18:13:41,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 18:13:41,124 INFO L87 Difference]: Start difference. First operand 30428 states and 50712 transitions. Second operand has 5 states, 5 states have (on average 607.4) internal successors, (3037), 5 states have internal predecessors, (3037), 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 18:13:42,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:13:42,525 INFO L93 Difference]: Finished difference Result 84850 states and 141423 transitions. [2023-12-25 18:13:42,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:13:42,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 607.4) internal successors, (3037), 5 states have internal predecessors, (3037), 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 3037 [2023-12-25 18:13:42,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:13:42,609 INFO L225 Difference]: With dead ends: 84850 [2023-12-25 18:13:42,609 INFO L226 Difference]: Without dead ends: 57630 [2023-12-25 18:13:42,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 18:13:42,643 INFO L413 NwaCegarLoop]: 52882 mSDtfsCounter, 45337 mSDsluCounter, 145120 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45337 SdHoareTripleChecker+Valid, 198002 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 18:13:42,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45337 Valid, 198002 Invalid, 23 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 18:13:42,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57630 states. [2023-12-25 18:13:43,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57630 to 30430. [2023-12-25 18:13:43,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30430 states, 30429 states have (on average 1.666633803279766) internal successors, (50714), 30429 states have internal predecessors, (50714), 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 18:13:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30430 states to 30430 states and 50714 transitions. [2023-12-25 18:13:43,333 INFO L78 Accepts]: Start accepts. Automaton has 30430 states and 50714 transitions. Word has length 3037 [2023-12-25 18:13:43,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:13:43,336 INFO L495 AbstractCegarLoop]: Abstraction has 30430 states and 50714 transitions. [2023-12-25 18:13:43,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 607.4) internal successors, (3037), 5 states have internal predecessors, (3037), 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 18:13:43,337 INFO L276 IsEmpty]: Start isEmpty. Operand 30430 states and 50714 transitions. [2023-12-25 18:13:43,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3039 [2023-12-25 18:13:43,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:13:43,400 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:43,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-25 18:13:43,400 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:13:43,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:13:43,401 INFO L85 PathProgramCache]: Analyzing trace with hash -113200360, now seen corresponding path program 1 times [2023-12-25 18:13:43,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:13:43,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412462631] [2023-12-25 18:13:43,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:13:43,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:13:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:13:50,176 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 18:13:50,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:13:50,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412462631] [2023-12-25 18:13:50,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412462631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:13:50,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:13:50,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 18:13:50,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193367303] [2023-12-25 18:13:50,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:13:50,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 18:13:50,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:13:50,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 18:13:50,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 18:13:50,183 INFO L87 Difference]: Start difference. First operand 30430 states and 50714 transitions. Second operand has 4 states, 4 states have (on average 759.5) internal successors, (3038), 4 states have internal predecessors, (3038), 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 18:13:51,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:13:51,481 INFO L93 Difference]: Finished difference Result 84853 states and 141424 transitions. [2023-12-25 18:13:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:13:51,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 759.5) internal successors, (3038), 4 states have internal predecessors, (3038), 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 3038 [2023-12-25 18:13:51,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:13:51,560 INFO L225 Difference]: With dead ends: 84853 [2023-12-25 18:13:51,561 INFO L226 Difference]: Without dead ends: 57631 [2023-12-25 18:13:51,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:13:51,591 INFO L413 NwaCegarLoop]: 52877 mSDtfsCounter, 45334 mSDsluCounter, 99779 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45334 SdHoareTripleChecker+Valid, 152656 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 18:13:51,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45334 Valid, 152656 Invalid, 19 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 18:13:51,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57631 states. [2023-12-25 18:13:52,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57631 to 30432. [2023-12-25 18:13:52,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30432 states, 30431 states have (on average 1.6665899904702441) internal successors, (50716), 30431 states have internal predecessors, (50716), 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 18:13:52,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30432 states to 30432 states and 50716 transitions. [2023-12-25 18:13:52,406 INFO L78 Accepts]: Start accepts. Automaton has 30432 states and 50716 transitions. Word has length 3038 [2023-12-25 18:13:52,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:13:52,408 INFO L495 AbstractCegarLoop]: Abstraction has 30432 states and 50716 transitions. [2023-12-25 18:13:52,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 759.5) internal successors, (3038), 4 states have internal predecessors, (3038), 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 18:13:52,409 INFO L276 IsEmpty]: Start isEmpty. Operand 30432 states and 50716 transitions. [2023-12-25 18:13:52,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3040 [2023-12-25 18:13:52,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:13:52,477 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:13:52,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-25 18:13:52,477 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:13:52,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:13:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash 676968238, now seen corresponding path program 1 times [2023-12-25 18:13:52,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:13:52,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444048239] [2023-12-25 18:13:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:13:52,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:13:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:14:00,593 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 18:14:00,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:14:00,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444048239] [2023-12-25 18:14:00,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444048239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:14:00,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:14:00,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 18:14:00,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11430862] [2023-12-25 18:14:00,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:14:00,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 18:14:00,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:14:00,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 18:14:00,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 18:14:00,600 INFO L87 Difference]: Start difference. First operand 30432 states and 50716 transitions. Second operand has 5 states, 5 states have (on average 607.8) internal successors, (3039), 5 states have internal predecessors, (3039), 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 18:14:01,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:14:01,709 INFO L93 Difference]: Finished difference Result 84856 states and 141425 transitions. [2023-12-25 18:14:01,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:14:01,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 607.8) internal successors, (3039), 5 states have internal predecessors, (3039), 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 3039 [2023-12-25 18:14:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:14:01,780 INFO L225 Difference]: With dead ends: 84856 [2023-12-25 18:14:01,780 INFO L226 Difference]: Without dead ends: 57632 [2023-12-25 18:14:01,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 18:14:01,806 INFO L413 NwaCegarLoop]: 52872 mSDtfsCounter, 45331 mSDsluCounter, 152643 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45331 SdHoareTripleChecker+Valid, 205515 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 18:14:01,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45331 Valid, 205515 Invalid, 27 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 18:14:01,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57632 states. [2023-12-25 18:14:02,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57632 to 30434. [2023-12-25 18:14:02,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30434 states, 30433 states have (on average 1.6665461834193145) internal successors, (50718), 30433 states have internal predecessors, (50718), 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 18:14:02,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30434 states to 30434 states and 50718 transitions. [2023-12-25 18:14:02,384 INFO L78 Accepts]: Start accepts. Automaton has 30434 states and 50718 transitions. Word has length 3039 [2023-12-25 18:14:02,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:14:02,386 INFO L495 AbstractCegarLoop]: Abstraction has 30434 states and 50718 transitions. [2023-12-25 18:14:02,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 607.8) internal successors, (3039), 5 states have internal predecessors, (3039), 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 18:14:02,387 INFO L276 IsEmpty]: Start isEmpty. Operand 30434 states and 50718 transitions. [2023-12-25 18:14:02,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3041 [2023-12-25 18:14:02,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:14:02,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:02,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-25 18:14:02,441 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:14:02,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:14:02,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1139338750, now seen corresponding path program 1 times [2023-12-25 18:14:02,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:14:02,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835121854] [2023-12-25 18:14:02,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:14:02,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:14:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:14:11,285 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 18:14:11,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:14:11,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835121854] [2023-12-25 18:14:11,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835121854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:14:11,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:14:11,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 18:14:11,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279638023] [2023-12-25 18:14:11,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:14:11,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 18:14:11,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:14:11,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 18:14:11,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 18:14:11,292 INFO L87 Difference]: Start difference. First operand 30434 states and 50718 transitions. Second operand has 5 states, 5 states have (on average 608.0) internal successors, (3040), 5 states have internal predecessors, (3040), 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 18:14:12,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:14:12,695 INFO L93 Difference]: Finished difference Result 84859 states and 141426 transitions. [2023-12-25 18:14:12,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:14:12,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 608.0) internal successors, (3040), 5 states have internal predecessors, (3040), 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 3040 [2023-12-25 18:14:12,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:14:12,774 INFO L225 Difference]: With dead ends: 84859 [2023-12-25 18:14:12,774 INFO L226 Difference]: Without dead ends: 57633 [2023-12-25 18:14:12,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 18:14:12,807 INFO L413 NwaCegarLoop]: 52867 mSDtfsCounter, 45328 mSDsluCounter, 145096 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45328 SdHoareTripleChecker+Valid, 197963 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 18:14:12,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45328 Valid, 197963 Invalid, 23 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 18:14:12,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57633 states. [2023-12-25 18:14:13,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57633 to 30436. [2023-12-25 18:14:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30436 states, 30435 states have (on average 1.666502382125842) internal successors, (50720), 30435 states have internal predecessors, (50720), 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 18:14:13,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30436 states to 30436 states and 50720 transitions. [2023-12-25 18:14:13,482 INFO L78 Accepts]: Start accepts. Automaton has 30436 states and 50720 transitions. Word has length 3040 [2023-12-25 18:14:13,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:14:13,484 INFO L495 AbstractCegarLoop]: Abstraction has 30436 states and 50720 transitions. [2023-12-25 18:14:13,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 608.0) internal successors, (3040), 5 states have internal predecessors, (3040), 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 18:14:13,485 INFO L276 IsEmpty]: Start isEmpty. Operand 30436 states and 50720 transitions. [2023-12-25 18:14:13,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3042 [2023-12-25 18:14:13,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:14:13,544 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:13,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-25 18:14:13,544 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:14:13,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:14:13,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2062606520, now seen corresponding path program 1 times [2023-12-25 18:14:13,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:14:13,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433790108] [2023-12-25 18:14:13,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:14:13,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:14:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:14:22,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 18:14:22,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:14:22,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433790108] [2023-12-25 18:14:22,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433790108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:14:22,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:14:22,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 18:14:22,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146483631] [2023-12-25 18:14:22,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:14:22,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 18:14:22,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:14:22,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 18:14:22,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 18:14:22,337 INFO L87 Difference]: Start difference. First operand 30436 states and 50720 transitions. Second operand has 5 states, 5 states have (on average 608.2) internal successors, (3041), 5 states have internal predecessors, (3041), 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 18:14:23,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:14:23,762 INFO L93 Difference]: Finished difference Result 84862 states and 141427 transitions. [2023-12-25 18:14:23,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:14:23,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 608.2) internal successors, (3041), 5 states have internal predecessors, (3041), 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 3041 [2023-12-25 18:14:23,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:14:23,840 INFO L225 Difference]: With dead ends: 84862 [2023-12-25 18:14:23,840 INFO L226 Difference]: Without dead ends: 57634 [2023-12-25 18:14:23,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 18:14:23,862 INFO L413 NwaCegarLoop]: 52862 mSDtfsCounter, 45325 mSDsluCounter, 145088 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45325 SdHoareTripleChecker+Valid, 197950 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 18:14:23,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45325 Valid, 197950 Invalid, 23 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 18:14:23,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57634 states. [2023-12-25 18:14:24,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57634 to 30438. [2023-12-25 18:14:24,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30438 states, 30437 states have (on average 1.6664585865886914) internal successors, (50722), 30437 states have internal predecessors, (50722), 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 18:14:24,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30438 states to 30438 states and 50722 transitions. [2023-12-25 18:14:24,691 INFO L78 Accepts]: Start accepts. Automaton has 30438 states and 50722 transitions. Word has length 3041 [2023-12-25 18:14:24,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:14:24,694 INFO L495 AbstractCegarLoop]: Abstraction has 30438 states and 50722 transitions. [2023-12-25 18:14:24,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 608.2) internal successors, (3041), 5 states have internal predecessors, (3041), 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 18:14:24,694 INFO L276 IsEmpty]: Start isEmpty. Operand 30438 states and 50722 transitions. [2023-12-25 18:14:24,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3043 [2023-12-25 18:14:24,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:14:24,754 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:24,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-25 18:14:24,755 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:14:24,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:14:24,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1644616926, now seen corresponding path program 1 times [2023-12-25 18:14:24,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:14:24,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524515877] [2023-12-25 18:14:24,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:14:24,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:14:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:14:32,040 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 18:14:32,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:14:32,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524515877] [2023-12-25 18:14:32,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524515877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:14:32,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:14:32,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 18:14:32,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089052988] [2023-12-25 18:14:32,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:14:32,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 18:14:32,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:14:32,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 18:14:32,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 18:14:32,066 INFO L87 Difference]: Start difference. First operand 30438 states and 50722 transitions. Second operand has 4 states, 4 states have (on average 760.5) internal successors, (3042), 4 states have internal predecessors, (3042), 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 18:14:33,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:14:33,220 INFO L93 Difference]: Finished difference Result 84865 states and 141428 transitions. [2023-12-25 18:14:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:14:33,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 760.5) internal successors, (3042), 4 states have internal predecessors, (3042), 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 3042 [2023-12-25 18:14:33,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:14:33,296 INFO L225 Difference]: With dead ends: 84865 [2023-12-25 18:14:33,296 INFO L226 Difference]: Without dead ends: 57635 [2023-12-25 18:14:33,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:14:33,332 INFO L413 NwaCegarLoop]: 52857 mSDtfsCounter, 45322 mSDsluCounter, 99759 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45322 SdHoareTripleChecker+Valid, 152616 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 18:14:33,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45322 Valid, 152616 Invalid, 19 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 18:14:33,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57635 states. [2023-12-25 18:14:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57635 to 30440. [2023-12-25 18:14:33,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30440 states, 30439 states have (on average 1.6664147968067282) internal successors, (50724), 30439 states have internal predecessors, (50724), 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 18:14:34,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30440 states to 30440 states and 50724 transitions. [2023-12-25 18:14:34,050 INFO L78 Accepts]: Start accepts. Automaton has 30440 states and 50724 transitions. Word has length 3042 [2023-12-25 18:14:34,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:14:34,053 INFO L495 AbstractCegarLoop]: Abstraction has 30440 states and 50724 transitions. [2023-12-25 18:14:34,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 760.5) internal successors, (3042), 4 states have internal predecessors, (3042), 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 18:14:34,053 INFO L276 IsEmpty]: Start isEmpty. Operand 30440 states and 50724 transitions. [2023-12-25 18:14:34,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3044 [2023-12-25 18:14:34,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:14:34,117 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:34,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-25 18:14:34,117 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:14:34,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:14:34,118 INFO L85 PathProgramCache]: Analyzing trace with hash 19672480, now seen corresponding path program 1 times [2023-12-25 18:14:34,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:14:34,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224058083] [2023-12-25 18:14:34,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:14:34,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:14:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:14:42,724 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 18:14:42,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:14:42,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224058083] [2023-12-25 18:14:42,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224058083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:14:42,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:14:42,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 18:14:42,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427853032] [2023-12-25 18:14:42,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:14:42,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 18:14:42,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:14:42,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 18:14:42,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 18:14:42,734 INFO L87 Difference]: Start difference. First operand 30440 states and 50724 transitions. Second operand has 4 states, 4 states have (on average 760.75) internal successors, (3043), 4 states have internal predecessors, (3043), 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 18:14:43,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:14:43,784 INFO L93 Difference]: Finished difference Result 84868 states and 141429 transitions. [2023-12-25 18:14:43,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:14:43,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 760.75) internal successors, (3043), 4 states have internal predecessors, (3043), 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 3043 [2023-12-25 18:14:43,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:14:43,871 INFO L225 Difference]: With dead ends: 84868 [2023-12-25 18:14:43,871 INFO L226 Difference]: Without dead ends: 57636 [2023-12-25 18:14:43,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:14:43,915 INFO L413 NwaCegarLoop]: 52852 mSDtfsCounter, 45319 mSDsluCounter, 99754 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45319 SdHoareTripleChecker+Valid, 152606 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 18:14:43,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45319 Valid, 152606 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 18:14:43,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57636 states. [2023-12-25 18:14:44,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57636 to 30442. [2023-12-25 18:14:44,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30442 states, 30441 states have (on average 1.666371012778818) internal successors, (50726), 30441 states have internal predecessors, (50726), 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 18:14:44,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30442 states to 30442 states and 50726 transitions. [2023-12-25 18:14:44,648 INFO L78 Accepts]: Start accepts. Automaton has 30442 states and 50726 transitions. Word has length 3043 [2023-12-25 18:14:44,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:14:44,650 INFO L495 AbstractCegarLoop]: Abstraction has 30442 states and 50726 transitions. [2023-12-25 18:14:44,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 760.75) internal successors, (3043), 4 states have internal predecessors, (3043), 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 18:14:44,651 INFO L276 IsEmpty]: Start isEmpty. Operand 30442 states and 50726 transitions. [2023-12-25 18:14:44,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3045 [2023-12-25 18:14:44,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:14:44,711 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:44,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-25 18:14:44,712 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:14:44,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:14:44,713 INFO L85 PathProgramCache]: Analyzing trace with hash -310304248, now seen corresponding path program 1 times [2023-12-25 18:14:44,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:14:44,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226394992] [2023-12-25 18:14:44,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:14:44,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:14:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:14:52,591 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 18:14:52,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:14:52,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226394992] [2023-12-25 18:14:52,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226394992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:14:52,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:14:52,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 18:14:52,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539556888] [2023-12-25 18:14:52,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:14:52,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 18:14:52,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:14:52,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 18:14:52,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-25 18:14:52,599 INFO L87 Difference]: Start difference. First operand 30442 states and 50726 transitions. Second operand has 5 states, 5 states have (on average 608.8) internal successors, (3044), 5 states have internal predecessors, (3044), 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 18:14:53,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:14:53,992 INFO L93 Difference]: Finished difference Result 84871 states and 141430 transitions. [2023-12-25 18:14:53,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:14:53,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 608.8) internal successors, (3044), 5 states have internal predecessors, (3044), 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 3044 [2023-12-25 18:14:54,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:14:54,080 INFO L225 Difference]: With dead ends: 84871 [2023-12-25 18:14:54,080 INFO L226 Difference]: Without dead ends: 57637 [2023-12-25 18:14:54,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 18:14:54,110 INFO L413 NwaCegarLoop]: 52847 mSDtfsCounter, 45316 mSDsluCounter, 152593 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45316 SdHoareTripleChecker+Valid, 205440 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 18:14:54,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45316 Valid, 205440 Invalid, 27 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 18:14:54,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57637 states. [2023-12-25 18:14:54,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57637 to 30444. [2023-12-25 18:14:54,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30444 states, 30443 states have (on average 1.666327234503827) internal successors, (50728), 30443 states have internal predecessors, (50728), 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 18:14:54,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30444 states to 30444 states and 50728 transitions. [2023-12-25 18:14:54,796 INFO L78 Accepts]: Start accepts. Automaton has 30444 states and 50728 transitions. Word has length 3044 [2023-12-25 18:14:54,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:14:54,799 INFO L495 AbstractCegarLoop]: Abstraction has 30444 states and 50728 transitions. [2023-12-25 18:14:54,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 608.8) internal successors, (3044), 5 states have internal predecessors, (3044), 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 18:14:54,799 INFO L276 IsEmpty]: Start isEmpty. Operand 30444 states and 50728 transitions. [2023-12-25 18:14:55,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3046 [2023-12-25 18:14:55,002 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:14:55,003 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:14:55,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-25 18:14:55,004 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:14:55,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:14:55,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1736248902, now seen corresponding path program 1 times [2023-12-25 18:14:55,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:14:55,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135417565] [2023-12-25 18:14:55,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:14:55,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:14:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:15:01,785 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 18:15:01,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:15:01,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135417565] [2023-12-25 18:15:01,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135417565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:15:01,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:15:01,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 18:15:01,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279086483] [2023-12-25 18:15:01,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:15:01,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 18:15:01,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:15:01,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 18:15:01,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 18:15:01,790 INFO L87 Difference]: Start difference. First operand 30444 states and 50728 transitions. Second operand has 4 states, 4 states have (on average 761.25) internal successors, (3045), 4 states have internal predecessors, (3045), 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 18:15:02,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:15:02,680 INFO L93 Difference]: Finished difference Result 84874 states and 141431 transitions. [2023-12-25 18:15:02,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:15:02,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 761.25) internal successors, (3045), 4 states have internal predecessors, (3045), 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 3045 [2023-12-25 18:15:02,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:15:02,749 INFO L225 Difference]: With dead ends: 84874 [2023-12-25 18:15:02,749 INFO L226 Difference]: Without dead ends: 57638 [2023-12-25 18:15:02,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:15:02,785 INFO L413 NwaCegarLoop]: 52842 mSDtfsCounter, 45313 mSDsluCounter, 99744 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45313 SdHoareTripleChecker+Valid, 152586 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 18:15:02,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45313 Valid, 152586 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 18:15:02,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57638 states. [2023-12-25 18:15:03,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57638 to 30446. [2023-12-25 18:15:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30446 states, 30445 states have (on average 1.6662834619806208) internal successors, (50730), 30445 states have internal predecessors, (50730), 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 18:15:03,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30446 states to 30446 states and 50730 transitions. [2023-12-25 18:15:03,468 INFO L78 Accepts]: Start accepts. Automaton has 30446 states and 50730 transitions. Word has length 3045 [2023-12-25 18:15:03,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:15:03,470 INFO L495 AbstractCegarLoop]: Abstraction has 30446 states and 50730 transitions. [2023-12-25 18:15:03,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 761.25) internal successors, (3045), 4 states have internal predecessors, (3045), 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 18:15:03,471 INFO L276 IsEmpty]: Start isEmpty. Operand 30446 states and 50730 transitions. [2023-12-25 18:15:03,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3047 [2023-12-25 18:15:03,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:15:03,537 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:03,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-25 18:15:03,538 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:15:03,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:15:03,540 INFO L85 PathProgramCache]: Analyzing trace with hash -234983892, now seen corresponding path program 1 times [2023-12-25 18:15:03,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:15:03,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089253128] [2023-12-25 18:15:03,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:15:03,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:15:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:15:11,602 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 18:15:11,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:15:11,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089253128] [2023-12-25 18:15:11,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089253128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:15:11,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:15:11,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 18:15:11,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004861964] [2023-12-25 18:15:11,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:15:11,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 18:15:11,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:15:11,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 18:15:11,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 18:15:11,620 INFO L87 Difference]: Start difference. First operand 30446 states and 50730 transitions. Second operand has 4 states, 4 states have (on average 761.5) internal successors, (3046), 4 states have internal predecessors, (3046), 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 18:15:12,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 18:15:12,699 INFO L93 Difference]: Finished difference Result 84877 states and 141432 transitions. [2023-12-25 18:15:12,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 18:15:12,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 761.5) internal successors, (3046), 4 states have internal predecessors, (3046), 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 3046 [2023-12-25 18:15:12,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 18:15:12,754 INFO L225 Difference]: With dead ends: 84877 [2023-12-25 18:15:12,755 INFO L226 Difference]: Without dead ends: 57639 [2023-12-25 18:15:12,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:15:12,773 INFO L413 NwaCegarLoop]: 52837 mSDtfsCounter, 45310 mSDsluCounter, 99739 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45310 SdHoareTripleChecker+Valid, 152576 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 18:15:12,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45310 Valid, 152576 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 18:15:12,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57639 states. [2023-12-25 18:15:13,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57639 to 30448. [2023-12-25 18:15:13,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30448 states, 30447 states have (on average 1.6662396952080665) internal successors, (50732), 30447 states have internal predecessors, (50732), 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 18:15:13,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30448 states to 30448 states and 50732 transitions. [2023-12-25 18:15:13,504 INFO L78 Accepts]: Start accepts. Automaton has 30448 states and 50732 transitions. Word has length 3046 [2023-12-25 18:15:13,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 18:15:13,507 INFO L495 AbstractCegarLoop]: Abstraction has 30448 states and 50732 transitions. [2023-12-25 18:15:13,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 761.5) internal successors, (3046), 4 states have internal predecessors, (3046), 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 18:15:13,507 INFO L276 IsEmpty]: Start isEmpty. Operand 30448 states and 50732 transitions. [2023-12-25 18:15:13,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3048 [2023-12-25 18:15:13,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 18:15:13,569 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:13,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-25 18:15:13,569 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 18:15:13,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 18:15:13,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1439903506, now seen corresponding path program 1 times [2023-12-25 18:15:13,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-25 18:15:13,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837606295] [2023-12-25 18:15:13,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 18:15:13,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-25 18:15:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 18:15:20,040 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 18:15:20,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-25 18:15:20,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837606295] [2023-12-25 18:15:20,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837606295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 18:15:20,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 18:15:20,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 18:15:20,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356054596] [2023-12-25 18:15:20,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 18:15:20,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 18:15:20,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-25 18:15:20,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 18:15:20,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 18:15:20,045 INFO L87 Difference]: Start difference. First operand 30448 states and 50732 transitions. Second operand has 6 states, 6 states have (on average 507.8333333333333) internal successors, (3047), 5 states have internal predecessors, (3047), 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)