./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.1.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.1.prop1-back-serstep.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ab7435ef8679fe3eb61c8a79803fbf509f1faa1b74e4821e5a6c5797a94cf30 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 06:08:48,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 06:08:48,658 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 06:08:48,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 06:08:48,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 06:08:48,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 06:08:48,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 06:08:48,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 06:08:48,712 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 06:08:48,713 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 06:08:48,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 06:08:48,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 06:08:48,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 06:08:48,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 06:08:48,718 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 06:08:48,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 06:08:48,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 06:08:48,719 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 06:08:48,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 06:08:48,720 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 06:08:48,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 06:08:48,721 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 06:08:48,721 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 06:08:48,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 06:08:48,725 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 06:08:48,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 06:08:48,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 06:08:48,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 06:08:48,726 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 06:08:48,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 06:08:48,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 06:08:48,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 06:08:48,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 06:08:48,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 06:08:48,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 06:08:48,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 06:08:48,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 06:08:48,731 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 06:08:48,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 06:08:48,731 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ab7435ef8679fe3eb61c8a79803fbf509f1faa1b74e4821e5a6c5797a94cf30 [2024-10-11 06:08:49,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 06:08:49,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 06:08:49,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 06:08:49,097 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 06:08:49,098 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 06:08:49,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.1.prop1-back-serstep.c [2024-10-11 06:08:50,741 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 06:08:51,187 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 06:08:51,188 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.1.prop1-back-serstep.c [2024-10-11 06:08:51,226 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/78aadc8bf/5b79ade37a0f40e9a22d6c07ed17f16d/FLAG7b2bd526c [2024-10-11 06:08:51,249 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/78aadc8bf/5b79ade37a0f40e9a22d6c07ed17f16d [2024-10-11 06:08:51,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 06:08:51,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 06:08:51,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 06:08:51,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 06:08:51,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 06:08:51,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:08:51" (1/1) ... [2024-10-11 06:08:51,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7059ade6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:51, skipping insertion in model container [2024-10-11 06:08:51,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:08:51" (1/1) ... [2024-10-11 06:08:51,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 06:08:51,693 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.1.prop1-back-serstep.c[1173,1186] [2024-10-11 06:08:52,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 06:08:52,474 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 06:08:52,495 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.1.prop1-back-serstep.c[1173,1186] [2024-10-11 06:08:52,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 06:08:52,874 INFO L204 MainTranslator]: Completed translation [2024-10-11 06:08:52,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52 WrapperNode [2024-10-11 06:08:52,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 06:08:52,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 06:08:52,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 06:08:52,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 06:08:52,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:53,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:54,555 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10546 [2024-10-11 06:08:54,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 06:08:54,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 06:08:54,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 06:08:54,558 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 06:08:54,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:54,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:54,889 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:55,238 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]. [2024-10-11 06:08:55,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:55,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:55,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:55,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:55,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:55,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:56,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 06:08:56,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 06:08:56,219 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 06:08:56,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 06:08:56,221 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (1/1) ... [2024-10-11 06:08:56,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 06:08:56,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 06:08:56,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 06:08:56,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 06:08:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 06:08:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 06:08:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 06:08:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 06:08:57,226 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 06:08:57,228 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 06:09:07,634 INFO L? ?]: Removed 7027 outVars from TransFormulas that were not future-live. [2024-10-11 06:09:07,634 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 06:09:07,899 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 06:09:07,899 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 06:09:07,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:09:07 BoogieIcfgContainer [2024-10-11 06:09:07,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 06:09:07,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 06:09:07,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 06:09:07,911 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 06:09:07,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:08:51" (1/3) ... [2024-10-11 06:09:07,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ec65a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:09:07, skipping insertion in model container [2024-10-11 06:09:07,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:08:52" (2/3) ... [2024-10-11 06:09:07,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ec65a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:09:07, skipping insertion in model container [2024-10-11 06:09:07,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:09:07" (3/3) ... [2024-10-11 06:09:07,951 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.frogs.1.prop1-back-serstep.c [2024-10-11 06:09:07,979 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 06:09:07,980 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 06:09:08,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 06:09:08,138 INFO L333 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, 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;@692513fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 06:09:08,138 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 06:09:08,158 INFO L276 IsEmpty]: Start isEmpty. Operand has 2747 states, 2745 states have (on average 1.5001821493624772) internal successors, (4118), 2746 states have internal predecessors, (4118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-11 06:09:08,177 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:09:08,178 INFO L215 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] [2024-10-11 06:09:08,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:09:08,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:09:08,188 INFO L85 PathProgramCache]: Analyzing trace with hash 242092707, now seen corresponding path program 1 times [2024-10-11 06:09:08,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:09:08,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538200689] [2024-10-11 06:09:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:09:08,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:09:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:09:09,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 06:09:09,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:09:09,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538200689] [2024-10-11 06:09:09,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538200689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:09:09,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:09:09,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 06:09:09,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274103410] [2024-10-11 06:09:09,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:09:09,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:09:09,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:09:09,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:09:09,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:09:09,811 INFO L87 Difference]: Start difference. First operand has 2747 states, 2745 states have (on average 1.5001821493624772) internal successors, (4118), 2746 states have internal predecessors, (4118), 0 states have call successors, (0), 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 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:10,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:09:10,079 INFO L93 Difference]: Finished difference Result 5394 states and 8088 transitions. [2024-10-11 06:09:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:09:10,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-10-11 06:09:10,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:09:10,109 INFO L225 Difference]: With dead ends: 5394 [2024-10-11 06:09:10,110 INFO L226 Difference]: Without dead ends: 2748 [2024-10-11 06:09:10,121 INFO L431 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 [2024-10-11 06:09:10,125 INFO L432 NwaCegarLoop]: 4113 mSDtfsCounter, 0 mSDsluCounter, 8221 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12334 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 06:09:10,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12334 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 06:09:10,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2024-10-11 06:09:10,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 2748. [2024-10-11 06:09:10,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2748 states, 2747 states have (on average 1.499089916272297) internal successors, (4118), 2747 states have internal predecessors, (4118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:10,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2748 states to 2748 states and 4118 transitions. [2024-10-11 06:09:10,286 INFO L78 Accepts]: Start accepts. Automaton has 2748 states and 4118 transitions. Word has length 166 [2024-10-11 06:09:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:09:10,289 INFO L471 AbstractCegarLoop]: Abstraction has 2748 states and 4118 transitions. [2024-10-11 06:09:10,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:10,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2748 states and 4118 transitions. [2024-10-11 06:09:10,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-11 06:09:10,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:09:10,298 INFO L215 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] [2024-10-11 06:09:10,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 06:09:10,300 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:09:10,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:09:10,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1083364469, now seen corresponding path program 1 times [2024-10-11 06:09:10,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:09:10,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275529302] [2024-10-11 06:09:10,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:09:10,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:09:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:09:11,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 06:09:11,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:09:11,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275529302] [2024-10-11 06:09:11,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275529302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:09:11,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:09:11,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 06:09:11,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322201465] [2024-10-11 06:09:11,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:09:11,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:09:11,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:09:11,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:09:11,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:09:11,127 INFO L87 Difference]: Start difference. First operand 2748 states and 4118 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:11,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:09:11,276 INFO L93 Difference]: Finished difference Result 5397 states and 8088 transitions. [2024-10-11 06:09:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:09:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-10-11 06:09:11,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:09:11,292 INFO L225 Difference]: With dead ends: 5397 [2024-10-11 06:09:11,293 INFO L226 Difference]: Without dead ends: 2750 [2024-10-11 06:09:11,300 INFO L431 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 [2024-10-11 06:09:11,301 INFO L432 NwaCegarLoop]: 4113 mSDtfsCounter, 0 mSDsluCounter, 8218 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12331 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 06:09:11,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12331 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 06:09:11,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2024-10-11 06:09:11,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2750. [2024-10-11 06:09:11,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2749 states have (on average 1.4987268097489996) internal successors, (4120), 2749 states have internal predecessors, (4120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:11,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 4120 transitions. [2024-10-11 06:09:11,388 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 4120 transitions. Word has length 167 [2024-10-11 06:09:11,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:09:11,390 INFO L471 AbstractCegarLoop]: Abstraction has 2750 states and 4120 transitions. [2024-10-11 06:09:11,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:11,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 4120 transitions. [2024-10-11 06:09:11,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-11 06:09:11,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:09:11,395 INFO L215 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] [2024-10-11 06:09:11,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 06:09:11,395 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:09:11,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:09:11,396 INFO L85 PathProgramCache]: Analyzing trace with hash -322525060, now seen corresponding path program 1 times [2024-10-11 06:09:11,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:09:11,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279415359] [2024-10-11 06:09:11,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:09:11,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:09:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:09:12,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 06:09:12,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:09:12,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279415359] [2024-10-11 06:09:12,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279415359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:09:12,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:09:12,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 06:09:12,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955932433] [2024-10-11 06:09:12,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:09:12,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 06:09:12,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:09:12,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 06:09:12,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 06:09:12,035 INFO L87 Difference]: Start difference. First operand 2750 states and 4120 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:12,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:09:12,172 INFO L93 Difference]: Finished difference Result 5401 states and 8092 transitions. [2024-10-11 06:09:12,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 06:09:12,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-10-11 06:09:12,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:09:12,186 INFO L225 Difference]: With dead ends: 5401 [2024-10-11 06:09:12,186 INFO L226 Difference]: Without dead ends: 2752 [2024-10-11 06:09:12,192 INFO L431 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 [2024-10-11 06:09:12,194 INFO L432 NwaCegarLoop]: 4113 mSDtfsCounter, 0 mSDsluCounter, 8218 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12331 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:09:12,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12331 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 06:09:12,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2024-10-11 06:09:12,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2752. [2024-10-11 06:09:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2751 states have (on average 1.4983642311886587) internal successors, (4122), 2751 states have internal predecessors, (4122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:12,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 4122 transitions. [2024-10-11 06:09:12,288 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 4122 transitions. Word has length 168 [2024-10-11 06:09:12,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:09:12,289 INFO L471 AbstractCegarLoop]: Abstraction has 2752 states and 4122 transitions. [2024-10-11 06:09:12,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:12,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 4122 transitions. [2024-10-11 06:09:12,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-11 06:09:12,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:09:12,294 INFO L215 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] [2024-10-11 06:09:12,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 06:09:12,295 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:09:12,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:09:12,295 INFO L85 PathProgramCache]: Analyzing trace with hash -499454414, now seen corresponding path program 1 times [2024-10-11 06:09:12,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:09:12,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480588174] [2024-10-11 06:09:12,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:09:12,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:09:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:09:13,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 06:09:13,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:09:13,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480588174] [2024-10-11 06:09:13,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480588174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:09:13,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:09:13,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 06:09:13,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009757204] [2024-10-11 06:09:13,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:09:13,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 06:09:13,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:09:13,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 06:09:13,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 06:09:13,103 INFO L87 Difference]: Start difference. First operand 2752 states and 4122 transitions. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:13,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:09:13,430 INFO L93 Difference]: Finished difference Result 8040 states and 12045 transitions. [2024-10-11 06:09:13,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 06:09:13,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-10-11 06:09:13,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:09:13,455 INFO L225 Difference]: With dead ends: 8040 [2024-10-11 06:09:13,455 INFO L226 Difference]: Without dead ends: 5389 [2024-10-11 06:09:13,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 06:09:13,468 INFO L432 NwaCegarLoop]: 4111 mSDtfsCounter, 3939 mSDsluCounter, 16285 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3939 SdHoareTripleChecker+Valid, 20396 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 06:09:13,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3939 Valid, 20396 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 06:09:13,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5389 states. [2024-10-11 06:09:13,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5389 to 2968. [2024-10-11 06:09:13,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 2967 states have (on average 1.4984833164812943) internal successors, (4446), 2967 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:13,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 4446 transitions. [2024-10-11 06:09:13,588 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 4446 transitions. Word has length 169 [2024-10-11 06:09:13,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:09:13,589 INFO L471 AbstractCegarLoop]: Abstraction has 2968 states and 4446 transitions. [2024-10-11 06:09:13,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:13,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 4446 transitions. [2024-10-11 06:09:13,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1493 [2024-10-11 06:09:13,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:09:13,655 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 06:09:13,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 06:09:13,656 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:09:13,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:09:13,659 INFO L85 PathProgramCache]: Analyzing trace with hash 713549171, now seen corresponding path program 1 times [2024-10-11 06:09:13,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:09:13,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791908361] [2024-10-11 06:09:13,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:09:13,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:09:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:09:35,409 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 06:09:35,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:09:35,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791908361] [2024-10-11 06:09:35,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791908361] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:09:35,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:09:35,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 06:09:35,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108613627] [2024-10-11 06:09:35,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:09:35,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 06:09:35,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:09:35,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 06:09:35,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 06:09:35,420 INFO L87 Difference]: Start difference. First operand 2968 states and 4446 transitions. Second operand has 8 states, 8 states have (on average 186.5) internal successors, (1492), 7 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:36,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:09:36,575 INFO L93 Difference]: Finished difference Result 6159 states and 9227 transitions. [2024-10-11 06:09:36,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 06:09:36,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 186.5) internal successors, (1492), 7 states have internal predecessors, (1492), 0 states have call successors, (0), 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 1492 [2024-10-11 06:09:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:09:36,593 INFO L225 Difference]: With dead ends: 6159 [2024-10-11 06:09:36,593 INFO L226 Difference]: Without dead ends: 3508 [2024-10-11 06:09:36,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-11 06:09:36,602 INFO L432 NwaCegarLoop]: 3949 mSDtfsCounter, 4490 mSDsluCounter, 15790 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4490 SdHoareTripleChecker+Valid, 19739 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 06:09:36,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4490 Valid, 19739 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 06:09:36,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2024-10-11 06:09:36,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 3237. [2024-10-11 06:09:36,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 3236 states have (on average 1.4981458590852905) internal successors, (4848), 3236 states have internal predecessors, (4848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 4848 transitions. [2024-10-11 06:09:36,705 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 4848 transitions. Word has length 1492 [2024-10-11 06:09:36,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 06:09:36,707 INFO L471 AbstractCegarLoop]: Abstraction has 3237 states and 4848 transitions. [2024-10-11 06:09:36,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 186.5) internal successors, (1492), 7 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:36,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 4848 transitions. [2024-10-11 06:09:36,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1494 [2024-10-11 06:09:36,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 06:09:36,776 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 06:09:36,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 06:09:36,777 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 06:09:36,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 06:09:36,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1486826326, now seen corresponding path program 1 times [2024-10-11 06:09:36,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 06:09:36,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621743907] [2024-10-11 06:09:36,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 06:09:36,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 06:09:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 06:09:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 06:09:49,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 06:09:49,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621743907] [2024-10-11 06:09:49,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621743907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 06:09:49,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 06:09:49,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 06:09:49,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174419626] [2024-10-11 06:09:49,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 06:09:49,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 06:09:49,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 06:09:49,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 06:09:49,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 06:09:49,295 INFO L87 Difference]: Start difference. First operand 3237 states and 4848 transitions. Second operand has 9 states, 9 states have (on average 165.88888888888889) internal successors, (1493), 8 states have internal predecessors, (1493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 06:09:50,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 06:09:50,187 INFO L93 Difference]: Finished difference Result 6973 states and 10443 transitions. [2024-10-11 06:09:50,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 06:09:50,189 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 165.88888888888889) internal successors, (1493), 8 states have internal predecessors, (1493), 0 states have call successors, (0), 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 1493 [2024-10-11 06:09:50,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 06:09:50,204 INFO L225 Difference]: With dead ends: 6973 [2024-10-11 06:09:50,206 INFO L226 Difference]: Without dead ends: 3551 [2024-10-11 06:09:50,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-10-11 06:09:50,218 INFO L432 NwaCegarLoop]: 4079 mSDtfsCounter, 6339 mSDsluCounter, 20613 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 24692 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 06:09:50,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 24692 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 06:09:50,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3551 states. [2024-10-11 06:09:50,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3551 to 3281. [2024-10-11 06:09:50,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3281 states, 3280 states have (on average 1.4978658536585365) internal successors, (4913), 3280 states have internal predecessors, (4913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)