./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 32bit --witnessprinter.graph.data.programhash 2731fe4ad24c50878b77c0b5ed6ffe935fe9322bfb607f5cec3a6209916d8bc3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:35:36,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:35:36,947 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:35:36,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:35:36,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:35:36,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:35:36,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:35:36,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:35:36,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:35:36,978 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:35:36,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:35:36,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:35:36,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:35:36,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:35:36,980 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:35:36,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:35:36,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:35:36,982 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:35:36,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:35:36,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:35:36,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:35:36,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:35:36,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:35:36,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:35:36,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:35:36,985 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:35:36,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:35:36,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:35:36,986 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:35:36,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:35:36,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:35:36,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:35:36,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:35:36,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:35:36,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:35:36,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:35:36,988 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:35:36,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:35:36,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:35:36,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:35:36,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:35:36,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:35:36,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2731fe4ad24c50878b77c0b5ed6ffe935fe9322bfb607f5cec3a6209916d8bc3 [2024-10-24 01:35:37,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:35:37,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:35:37,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:35:37,297 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:35:37,297 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:35:37,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-10-24 01:35:38,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:35:38,990 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:35:38,991 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-10-24 01:35:39,010 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/700a837a9/a3ea348e0b7e4bf2afe0dc9bbaecf086/FLAG2de10465d [2024-10-24 01:35:39,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/700a837a9/a3ea348e0b7e4bf2afe0dc9bbaecf086 [2024-10-24 01:35:39,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:35:39,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:35:39,336 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:35:39,336 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:35:39,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:35:39,342 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:35:39" (1/1) ... [2024-10-24 01:35:39,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78dffa23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:39, skipping insertion in model container [2024-10-24 01:35:39,343 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:35:39" (1/1) ... [2024-10-24 01:35:39,393 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:35:39,779 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/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[14521,14534] [2024-10-24 01:35:39,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:35:39,907 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:35:39,993 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/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[14521,14534] [2024-10-24 01:35:40,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:35:40,074 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:35:40,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40 WrapperNode [2024-10-24 01:35:40,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:35:40,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:35:40,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:35:40,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:35:40,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,166 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1250 [2024-10-24 01:35:40,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:35:40,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:35:40,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:35:40,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:35:40,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,185 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,210 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]. [2024-10-24 01:35:40,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:35:40,254 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:35:40,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:35:40,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:35:40,256 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (1/1) ... [2024-10-24 01:35:40,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:35:40,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:35:40,312 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) [2024-10-24 01:35:40,315 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 [2024-10-24 01:35:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:35:40,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:35:40,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:35:40,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:35:40,594 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:35:40,597 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:35:41,624 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-10-24 01:35:41,624 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:35:41,686 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:35:41,689 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:35:41,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:35:41 BoogieIcfgContainer [2024-10-24 01:35:41,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:35:41,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:35:41,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:35:41,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:35:41,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:35:39" (1/3) ... [2024-10-24 01:35:41,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e7f774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:35:41, skipping insertion in model container [2024-10-24 01:35:41,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:40" (2/3) ... [2024-10-24 01:35:41,698 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e7f774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:35:41, skipping insertion in model container [2024-10-24 01:35:41,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:35:41" (3/3) ... [2024-10-24 01:35:41,701 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-10-24 01:35:41,717 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:35:41,718 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:35:41,797 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:35:41,806 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;@5ee422f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:35:41,807 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:35:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 303 states, 301 states have (on average 1.7906976744186047) internal successors, (539), 302 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:41,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 01:35:41,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:41,831 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] [2024-10-24 01:35:41,832 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:41,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:41,837 INFO L85 PathProgramCache]: Analyzing trace with hash 383113583, now seen corresponding path program 1 times [2024-10-24 01:35:41,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:41,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262882748] [2024-10-24 01:35:41,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:41,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:42,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:42,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:42,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262882748] [2024-10-24 01:35:42,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262882748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:42,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:42,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:35:42,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263322476] [2024-10-24 01:35:42,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:42,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:35:42,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:42,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:35:42,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:42,518 INFO L87 Difference]: Start difference. First operand has 303 states, 301 states have (on average 1.7906976744186047) internal successors, (539), 302 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:42,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:42,702 INFO L93 Difference]: Finished difference Result 608 states and 1074 transitions. [2024-10-24 01:35:42,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:35:42,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-10-24 01:35:42,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:42,727 INFO L225 Difference]: With dead ends: 608 [2024-10-24 01:35:42,727 INFO L226 Difference]: Without dead ends: 494 [2024-10-24 01:35:42,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:42,734 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 360 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:42,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 887 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:35:42,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2024-10-24 01:35:42,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 492. [2024-10-24 01:35:42,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 491 states have (on average 1.4969450101832993) internal successors, (735), 491 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:42,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 735 transitions. [2024-10-24 01:35:42,814 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 735 transitions. Word has length 143 [2024-10-24 01:35:42,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:42,815 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 735 transitions. [2024-10-24 01:35:42,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:42,816 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 735 transitions. [2024-10-24 01:35:42,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 01:35:42,819 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:42,819 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] [2024-10-24 01:35:42,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:35:42,820 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:42,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:42,821 INFO L85 PathProgramCache]: Analyzing trace with hash 313742097, now seen corresponding path program 1 times [2024-10-24 01:35:42,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:42,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835371406] [2024-10-24 01:35:42,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:42,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:43,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:43,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:43,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835371406] [2024-10-24 01:35:43,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835371406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:43,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:43,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:35:43,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526019324] [2024-10-24 01:35:43,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:43,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:35:43,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:43,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:35:43,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:43,086 INFO L87 Difference]: Start difference. First operand 492 states and 735 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:43,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:43,184 INFO L93 Difference]: Finished difference Result 1062 states and 1632 transitions. [2024-10-24 01:35:43,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:35:43,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-10-24 01:35:43,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:43,193 INFO L225 Difference]: With dead ends: 1062 [2024-10-24 01:35:43,193 INFO L226 Difference]: Without dead ends: 864 [2024-10-24 01:35:43,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:43,196 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 274 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:43,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 724 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:35:43,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-10-24 01:35:43,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 862. [2024-10-24 01:35:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 861 states have (on average 1.5087108013937283) internal successors, (1299), 861 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:43,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1299 transitions. [2024-10-24 01:35:43,240 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1299 transitions. Word has length 143 [2024-10-24 01:35:43,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:43,241 INFO L471 AbstractCegarLoop]: Abstraction has 862 states and 1299 transitions. [2024-10-24 01:35:43,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:43,242 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1299 transitions. [2024-10-24 01:35:43,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 01:35:43,245 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:43,245 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] [2024-10-24 01:35:43,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:35:43,246 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:43,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:43,247 INFO L85 PathProgramCache]: Analyzing trace with hash 268643290, now seen corresponding path program 1 times [2024-10-24 01:35:43,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:43,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140393146] [2024-10-24 01:35:43,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:43,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:43,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:43,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140393146] [2024-10-24 01:35:43,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140393146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:43,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:43,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:35:43,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821644023] [2024-10-24 01:35:43,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:43,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:35:43,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:43,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:35:43,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:35:43,911 INFO L87 Difference]: Start difference. First operand 862 states and 1299 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:44,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:44,062 INFO L93 Difference]: Finished difference Result 4181 states and 6280 transitions. [2024-10-24 01:35:44,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:35:44,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-10-24 01:35:44,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:44,076 INFO L225 Difference]: With dead ends: 4181 [2024-10-24 01:35:44,076 INFO L226 Difference]: Without dead ends: 3327 [2024-10-24 01:35:44,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:35:44,085 INFO L432 NwaCegarLoop]: 754 mSDtfsCounter, 1257 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:44,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 1898 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:35:44,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3327 states. [2024-10-24 01:35:44,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 1667. [2024-10-24 01:35:44,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1666 states have (on average 1.4915966386554622) internal successors, (2485), 1666 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:44,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2485 transitions. [2024-10-24 01:35:44,150 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2485 transitions. Word has length 143 [2024-10-24 01:35:44,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:44,150 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 2485 transitions. [2024-10-24 01:35:44,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:44,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2485 transitions. [2024-10-24 01:35:44,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 01:35:44,157 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:44,158 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] [2024-10-24 01:35:44,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:35:44,158 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:44,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash 869612546, now seen corresponding path program 1 times [2024-10-24 01:35:44,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:44,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919961363] [2024-10-24 01:35:44,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:44,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:44,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:44,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:44,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919961363] [2024-10-24 01:35:44,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919961363] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:44,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:44,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:35:44,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705891128] [2024-10-24 01:35:44,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:44,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:35:44,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:44,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:35:44,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:44,255 INFO L87 Difference]: Start difference. First operand 1667 states and 2485 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:44,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:44,289 INFO L93 Difference]: Finished difference Result 3309 states and 4928 transitions. [2024-10-24 01:35:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:35:44,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-10-24 01:35:44,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:44,297 INFO L225 Difference]: With dead ends: 3309 [2024-10-24 01:35:44,297 INFO L226 Difference]: Without dead ends: 1669 [2024-10-24 01:35:44,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:44,304 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 0 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:44,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 879 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:35:44,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2024-10-24 01:35:44,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1669. [2024-10-24 01:35:44,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1668 states have (on average 1.4910071942446044) internal successors, (2487), 1668 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2487 transitions. [2024-10-24 01:35:44,383 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2487 transitions. Word has length 144 [2024-10-24 01:35:44,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:44,384 INFO L471 AbstractCegarLoop]: Abstraction has 1669 states and 2487 transitions. [2024-10-24 01:35:44,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:44,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2487 transitions. [2024-10-24 01:35:44,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 01:35:44,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:44,389 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] [2024-10-24 01:35:44,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:35:44,389 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:44,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:44,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1169060635, now seen corresponding path program 1 times [2024-10-24 01:35:44,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:44,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653203109] [2024-10-24 01:35:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:44,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:44,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:44,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653203109] [2024-10-24 01:35:44,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653203109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:44,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:44,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:35:44,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317379848] [2024-10-24 01:35:44,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:44,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:35:44,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:44,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:35:44,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:35:44,948 INFO L87 Difference]: Start difference. First operand 1669 states and 2487 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:44,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:44,988 INFO L93 Difference]: Finished difference Result 3325 states and 4954 transitions. [2024-10-24 01:35:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:35:44,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-10-24 01:35:44,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:44,995 INFO L225 Difference]: With dead ends: 3325 [2024-10-24 01:35:44,995 INFO L226 Difference]: Without dead ends: 1669 [2024-10-24 01:35:45,000 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 [2024-10-24 01:35:45,001 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 20 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:45,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1390 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:35:45,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2024-10-24 01:35:45,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1668. [2024-10-24 01:35:45,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 1667 states have (on average 1.490101979604079) internal successors, (2484), 1667 states have internal predecessors, (2484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2484 transitions. [2024-10-24 01:35:45,042 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2484 transitions. Word has length 145 [2024-10-24 01:35:45,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:45,042 INFO L471 AbstractCegarLoop]: Abstraction has 1668 states and 2484 transitions. [2024-10-24 01:35:45,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:45,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2484 transitions. [2024-10-24 01:35:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 01:35:45,046 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:45,046 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] [2024-10-24 01:35:45,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:35:45,046 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:45,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:45,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1226846207, now seen corresponding path program 1 times [2024-10-24 01:35:45,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:45,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868036407] [2024-10-24 01:35:45,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:45,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:45,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:45,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868036407] [2024-10-24 01:35:45,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868036407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:45,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:45,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:35:45,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372513902] [2024-10-24 01:35:45,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:45,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:35:45,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:45,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:35:45,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:45,161 INFO L87 Difference]: Start difference. First operand 1668 states and 2484 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:45,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:45,241 INFO L93 Difference]: Finished difference Result 4400 states and 6555 transitions. [2024-10-24 01:35:45,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:35:45,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-10-24 01:35:45,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:45,255 INFO L225 Difference]: With dead ends: 4400 [2024-10-24 01:35:45,256 INFO L226 Difference]: Without dead ends: 2908 [2024-10-24 01:35:45,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:45,259 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 369 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:45,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1196 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:35:45,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2024-10-24 01:35:45,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2906. [2024-10-24 01:35:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2906 states, 2905 states have (on average 1.4688468158347676) internal successors, (4267), 2905 states have internal predecessors, (4267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:45,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 4267 transitions. [2024-10-24 01:35:45,327 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 4267 transitions. Word has length 145 [2024-10-24 01:35:45,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:45,328 INFO L471 AbstractCegarLoop]: Abstraction has 2906 states and 4267 transitions. [2024-10-24 01:35:45,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:45,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 4267 transitions. [2024-10-24 01:35:45,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 01:35:45,332 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:45,333 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] [2024-10-24 01:35:45,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:35:45,333 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:45,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:45,334 INFO L85 PathProgramCache]: Analyzing trace with hash 109993182, now seen corresponding path program 1 times [2024-10-24 01:35:45,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:45,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500198524] [2024-10-24 01:35:45,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:45,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:45,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:45,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500198524] [2024-10-24 01:35:45,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500198524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:45,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:45,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:35:45,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963590441] [2024-10-24 01:35:45,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:45,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:35:45,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:45,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:35:45,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:35:45,794 INFO L87 Difference]: Start difference. First operand 2906 states and 4267 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:45,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:45,835 INFO L93 Difference]: Finished difference Result 5212 states and 7676 transitions. [2024-10-24 01:35:45,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:35:45,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-10-24 01:35:45,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:45,843 INFO L225 Difference]: With dead ends: 5212 [2024-10-24 01:35:45,843 INFO L226 Difference]: Without dead ends: 2472 [2024-10-24 01:35:45,846 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 [2024-10-24 01:35:45,848 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 23 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:45,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1394 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:35:45,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2024-10-24 01:35:45,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 2472. [2024-10-24 01:35:45,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 2471 states have (on average 1.4682314852286524) internal successors, (3628), 2471 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:45,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3628 transitions. [2024-10-24 01:35:45,904 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3628 transitions. Word has length 145 [2024-10-24 01:35:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:45,904 INFO L471 AbstractCegarLoop]: Abstraction has 2472 states and 3628 transitions. [2024-10-24 01:35:45,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3628 transitions. [2024-10-24 01:35:45,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 01:35:45,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:45,909 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] [2024-10-24 01:35:45,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:35:45,909 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:45,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:45,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1926454177, now seen corresponding path program 1 times [2024-10-24 01:35:45,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:45,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989283346] [2024-10-24 01:35:45,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:45,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:46,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:46,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989283346] [2024-10-24 01:35:46,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989283346] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:46,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:46,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:35:46,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695861001] [2024-10-24 01:35:46,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:46,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:35:46,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:46,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:35:46,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:46,058 INFO L87 Difference]: Start difference. First operand 2472 states and 3628 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:46,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:46,309 INFO L93 Difference]: Finished difference Result 6621 states and 9824 transitions. [2024-10-24 01:35:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:35:46,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2024-10-24 01:35:46,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:46,326 INFO L225 Difference]: With dead ends: 6621 [2024-10-24 01:35:46,326 INFO L226 Difference]: Without dead ends: 4571 [2024-10-24 01:35:46,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:46,331 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 296 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:46,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 754 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:35:46,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2024-10-24 01:35:46,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 4569. [2024-10-24 01:35:46,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4569 states, 4568 states have (on average 1.4691330998248686) internal successors, (6711), 4568 states have internal predecessors, (6711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:46,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4569 states to 4569 states and 6711 transitions. [2024-10-24 01:35:46,452 INFO L78 Accepts]: Start accepts. Automaton has 4569 states and 6711 transitions. Word has length 151 [2024-10-24 01:35:46,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:46,452 INFO L471 AbstractCegarLoop]: Abstraction has 4569 states and 6711 transitions. [2024-10-24 01:35:46,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:46,453 INFO L276 IsEmpty]: Start isEmpty. Operand 4569 states and 6711 transitions. [2024-10-24 01:35:46,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 01:35:46,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:46,458 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] [2024-10-24 01:35:46,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:35:46,459 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:46,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:46,459 INFO L85 PathProgramCache]: Analyzing trace with hash 529476474, now seen corresponding path program 1 times [2024-10-24 01:35:46,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:46,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75159970] [2024-10-24 01:35:46,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:46,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:46,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:46,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:46,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75159970] [2024-10-24 01:35:46,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75159970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:46,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:46,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:35:46,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000341379] [2024-10-24 01:35:46,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:46,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:35:46,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:46,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:35:46,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:35:46,651 INFO L87 Difference]: Start difference. First operand 4569 states and 6711 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:46,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:46,871 INFO L93 Difference]: Finished difference Result 9905 states and 15523 transitions. [2024-10-24 01:35:46,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:35:46,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2024-10-24 01:35:46,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:46,907 INFO L225 Difference]: With dead ends: 9905 [2024-10-24 01:35:46,911 INFO L226 Difference]: Without dead ends: 8149 [2024-10-24 01:35:46,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:35:46,919 INFO L432 NwaCegarLoop]: 531 mSDtfsCounter, 967 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:46,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 1360 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:35:46,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8149 states. [2024-10-24 01:35:47,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8149 to 6395. [2024-10-24 01:35:47,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6395 states, 6394 states have (on average 1.5187675946199561) internal successors, (9711), 6394 states have internal predecessors, (9711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:47,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 9711 transitions. [2024-10-24 01:35:47,084 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 9711 transitions. Word has length 151 [2024-10-24 01:35:47,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:47,085 INFO L471 AbstractCegarLoop]: Abstraction has 6395 states and 9711 transitions. [2024-10-24 01:35:47,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:47,085 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 9711 transitions. [2024-10-24 01:35:47,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 01:35:47,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:47,091 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] [2024-10-24 01:35:47,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:35:47,091 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:47,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:47,092 INFO L85 PathProgramCache]: Analyzing trace with hash -951336694, now seen corresponding path program 1 times [2024-10-24 01:35:47,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:47,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267806766] [2024-10-24 01:35:47,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:47,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:47,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:47,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267806766] [2024-10-24 01:35:47,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267806766] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:47,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:47,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:35:47,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256168652] [2024-10-24 01:35:47,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:47,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:35:47,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:47,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:35:47,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:47,210 INFO L87 Difference]: Start difference. First operand 6395 states and 9711 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:47,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:47,339 INFO L93 Difference]: Finished difference Result 14983 states and 23195 transitions. [2024-10-24 01:35:47,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:35:47,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2024-10-24 01:35:47,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:47,371 INFO L225 Difference]: With dead ends: 14983 [2024-10-24 01:35:47,371 INFO L226 Difference]: Without dead ends: 11173 [2024-10-24 01:35:47,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:47,380 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 260 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:47,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 707 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:35:47,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11173 states. [2024-10-24 01:35:47,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11173 to 11171. [2024-10-24 01:35:47,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11171 states, 11170 states have (on average 1.5123545210384959) internal successors, (16893), 11170 states have internal predecessors, (16893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:47,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11171 states to 11171 states and 16893 transitions. [2024-10-24 01:35:47,636 INFO L78 Accepts]: Start accepts. Automaton has 11171 states and 16893 transitions. Word has length 151 [2024-10-24 01:35:47,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:47,637 INFO L471 AbstractCegarLoop]: Abstraction has 11171 states and 16893 transitions. [2024-10-24 01:35:47,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:47,637 INFO L276 IsEmpty]: Start isEmpty. Operand 11171 states and 16893 transitions. [2024-10-24 01:35:47,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 01:35:47,647 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:47,647 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] [2024-10-24 01:35:47,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:35:47,648 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:47,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:47,648 INFO L85 PathProgramCache]: Analyzing trace with hash 484377667, now seen corresponding path program 1 times [2024-10-24 01:35:47,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:47,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803955110] [2024-10-24 01:35:47,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:47,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:48,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:48,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:48,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803955110] [2024-10-24 01:35:48,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803955110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:48,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:48,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:35:48,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160193705] [2024-10-24 01:35:48,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:48,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:35:48,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:48,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:35:48,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:35:48,062 INFO L87 Difference]: Start difference. First operand 11171 states and 16893 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:48,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:48,199 INFO L93 Difference]: Finished difference Result 15175 states and 23411 transitions. [2024-10-24 01:35:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:35:48,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2024-10-24 01:35:48,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:48,222 INFO L225 Difference]: With dead ends: 15175 [2024-10-24 01:35:48,222 INFO L226 Difference]: Without dead ends: 11173 [2024-10-24 01:35:48,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:35:48,232 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 606 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:48,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 959 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:35:48,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11173 states. [2024-10-24 01:35:48,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11173 to 11171. [2024-10-24 01:35:48,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11171 states, 11170 states have (on average 1.5048343777976723) internal successors, (16809), 11170 states have internal predecessors, (16809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11171 states to 11171 states and 16809 transitions. [2024-10-24 01:35:48,486 INFO L78 Accepts]: Start accepts. Automaton has 11171 states and 16809 transitions. Word has length 151 [2024-10-24 01:35:48,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:48,486 INFO L471 AbstractCegarLoop]: Abstraction has 11171 states and 16809 transitions. [2024-10-24 01:35:48,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:48,487 INFO L276 IsEmpty]: Start isEmpty. Operand 11171 states and 16809 transitions. [2024-10-24 01:35:48,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-24 01:35:48,498 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:48,498 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] [2024-10-24 01:35:48,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:35:48,498 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:48,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:48,499 INFO L85 PathProgramCache]: Analyzing trace with hash -423015800, now seen corresponding path program 1 times [2024-10-24 01:35:48,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:48,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003821716] [2024-10-24 01:35:48,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:48,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:48,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:48,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:48,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003821716] [2024-10-24 01:35:48,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003821716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:48,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:48,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:35:48,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912572262] [2024-10-24 01:35:48,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:48,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:35:48,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:48,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:35:48,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:35:48,913 INFO L87 Difference]: Start difference. First operand 11171 states and 16809 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:49,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:49,038 INFO L93 Difference]: Finished difference Result 29267 states and 44022 transitions. [2024-10-24 01:35:49,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:35:49,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2024-10-24 01:35:49,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:49,071 INFO L225 Difference]: With dead ends: 29267 [2024-10-24 01:35:49,071 INFO L226 Difference]: Without dead ends: 18132 [2024-10-24 01:35:49,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:35:49,092 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 755 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:49,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 1144 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:35:49,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18132 states. [2024-10-24 01:35:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18132 to 18130. [2024-10-24 01:35:49,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18130 states, 18129 states have (on average 1.4883887693750344) internal successors, (26983), 18129 states have internal predecessors, (26983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:49,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18130 states to 18130 states and 26983 transitions. [2024-10-24 01:35:49,459 INFO L78 Accepts]: Start accepts. Automaton has 18130 states and 26983 transitions. Word has length 151 [2024-10-24 01:35:49,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:49,460 INFO L471 AbstractCegarLoop]: Abstraction has 18130 states and 26983 transitions. [2024-10-24 01:35:49,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:49,460 INFO L276 IsEmpty]: Start isEmpty. Operand 18130 states and 26983 transitions. [2024-10-24 01:35:49,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-24 01:35:49,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:49,474 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] [2024-10-24 01:35:49,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:35:49,475 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:49,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:49,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1877147487, now seen corresponding path program 1 times [2024-10-24 01:35:49,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:49,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122969236] [2024-10-24 01:35:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:49,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:49,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:49,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:49,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122969236] [2024-10-24 01:35:49,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122969236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:49,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:49,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:35:49,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414743374] [2024-10-24 01:35:49,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:49,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:35:49,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:49,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:35:49,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:49,570 INFO L87 Difference]: Start difference. First operand 18130 states and 26983 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:49,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:49,727 INFO L93 Difference]: Finished difference Result 46117 states and 68527 transitions. [2024-10-24 01:35:49,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:35:49,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2024-10-24 01:35:49,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:49,782 INFO L225 Difference]: With dead ends: 46117 [2024-10-24 01:35:49,783 INFO L226 Difference]: Without dead ends: 28471 [2024-10-24 01:35:49,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:35:49,920 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 367 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:49,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1189 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:35:49,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28471 states. [2024-10-24 01:35:50,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28471 to 28469. [2024-10-24 01:35:50,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28469 states, 28468 states have (on average 1.4646972038780386) internal successors, (41697), 28468 states have internal predecessors, (41697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:50,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28469 states to 28469 states and 41697 transitions. [2024-10-24 01:35:50,439 INFO L78 Accepts]: Start accepts. Automaton has 28469 states and 41697 transitions. Word has length 153 [2024-10-24 01:35:50,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:50,439 INFO L471 AbstractCegarLoop]: Abstraction has 28469 states and 41697 transitions. [2024-10-24 01:35:50,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:50,440 INFO L276 IsEmpty]: Start isEmpty. Operand 28469 states and 41697 transitions. [2024-10-24 01:35:50,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 01:35:50,460 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:50,460 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] [2024-10-24 01:35:50,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:35:50,460 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:50,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:50,461 INFO L85 PathProgramCache]: Analyzing trace with hash -770393130, now seen corresponding path program 1 times [2024-10-24 01:35:50,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:50,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926114337] [2024-10-24 01:35:50,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:50,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:50,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:50,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:50,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926114337] [2024-10-24 01:35:50,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926114337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:50,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:50,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:35:50,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835739983] [2024-10-24 01:35:50,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:50,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:35:50,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:50,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:35:50,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:35:50,653 INFO L87 Difference]: Start difference. First operand 28469 states and 41697 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:51,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:51,378 INFO L93 Difference]: Finished difference Result 75537 states and 117039 transitions. [2024-10-24 01:35:51,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:35:51,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-10-24 01:35:51,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:51,645 INFO L225 Difference]: With dead ends: 75537 [2024-10-24 01:35:51,646 INFO L226 Difference]: Without dead ends: 59775 [2024-10-24 01:35:51,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 01:35:51,680 INFO L432 NwaCegarLoop]: 667 mSDtfsCounter, 1263 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:51,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 1670 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:35:51,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59775 states. [2024-10-24 01:35:52,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59775 to 39445. [2024-10-24 01:35:52,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39445 states, 39444 states have (on average 1.4941943007808538) internal successors, (58937), 39444 states have internal predecessors, (58937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39445 states to 39445 states and 58937 transitions. [2024-10-24 01:35:52,737 INFO L78 Accepts]: Start accepts. Automaton has 39445 states and 58937 transitions. Word has length 159 [2024-10-24 01:35:52,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:52,738 INFO L471 AbstractCegarLoop]: Abstraction has 39445 states and 58937 transitions. [2024-10-24 01:35:52,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:52,744 INFO L276 IsEmpty]: Start isEmpty. Operand 39445 states and 58937 transitions. [2024-10-24 01:35:52,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 01:35:52,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:52,772 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] [2024-10-24 01:35:52,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:35:52,772 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:52,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:52,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1739373704, now seen corresponding path program 1 times [2024-10-24 01:35:52,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:52,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604583037] [2024-10-24 01:35:52,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:52,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:53,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:53,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:53,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604583037] [2024-10-24 01:35:53,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604583037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:53,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:53,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 01:35:53,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103299326] [2024-10-24 01:35:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:53,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:35:53,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:53,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:35:53,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:35:53,775 INFO L87 Difference]: Start difference. First operand 39445 states and 58937 transitions. Second operand has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:54,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:54,280 INFO L93 Difference]: Finished difference Result 67001 states and 102635 transitions. [2024-10-24 01:35:54,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:35:54,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-10-24 01:35:54,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:54,560 INFO L225 Difference]: With dead ends: 67001 [2024-10-24 01:35:54,560 INFO L226 Difference]: Without dead ends: 39447 [2024-10-24 01:35:54,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:35:54,607 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 1996 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:54,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 2422 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:35:54,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39447 states. [2024-10-24 01:35:55,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39447 to 37205. [2024-10-24 01:35:55,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37205 states, 37204 states have (on average 1.4828781851413826) internal successors, (55169), 37204 states have internal predecessors, (55169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37205 states to 37205 states and 55169 transitions. [2024-10-24 01:35:55,336 INFO L78 Accepts]: Start accepts. Automaton has 37205 states and 55169 transitions. Word has length 159 [2024-10-24 01:35:55,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:55,337 INFO L471 AbstractCegarLoop]: Abstraction has 37205 states and 55169 transitions. [2024-10-24 01:35:55,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.666666666666668) internal successors, (159), 9 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:55,337 INFO L276 IsEmpty]: Start isEmpty. Operand 37205 states and 55169 transitions. [2024-10-24 01:35:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 01:35:55,367 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:55,367 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] [2024-10-24 01:35:55,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:35:55,368 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:55,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1074780424, now seen corresponding path program 1 times [2024-10-24 01:35:55,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:55,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874911188] [2024-10-24 01:35:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:55,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:55,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:55,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874911188] [2024-10-24 01:35:55,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874911188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:55,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:55,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:35:55,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036989365] [2024-10-24 01:35:55,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:55,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:35:55,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:55,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:35:55,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:35:55,759 INFO L87 Difference]: Start difference. First operand 37205 states and 55169 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:56,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:56,133 INFO L93 Difference]: Finished difference Result 75117 states and 115213 transitions. [2024-10-24 01:35:56,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:35:56,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-10-24 01:35:56,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:56,243 INFO L225 Difference]: With dead ends: 75117 [2024-10-24 01:35:56,244 INFO L226 Difference]: Without dead ends: 66171 [2024-10-24 01:35:56,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:35:56,280 INFO L432 NwaCegarLoop]: 679 mSDtfsCounter, 785 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:56,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1628 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:35:56,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66171 states. [2024-10-24 01:35:57,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66171 to 41653. [2024-10-24 01:35:57,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41653 states, 41652 states have (on average 1.4927734562566024) internal successors, (62177), 41652 states have internal predecessors, (62177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:57,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41653 states to 41653 states and 62177 transitions. [2024-10-24 01:35:57,157 INFO L78 Accepts]: Start accepts. Automaton has 41653 states and 62177 transitions. Word has length 159 [2024-10-24 01:35:57,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:35:57,158 INFO L471 AbstractCegarLoop]: Abstraction has 41653 states and 62177 transitions. [2024-10-24 01:35:57,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:57,158 INFO L276 IsEmpty]: Start isEmpty. Operand 41653 states and 62177 transitions. [2024-10-24 01:35:57,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 01:35:57,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:35:57,173 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] [2024-10-24 01:35:57,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:35:57,174 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:35:57,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:35:57,174 INFO L85 PathProgramCache]: Analyzing trace with hash 835789495, now seen corresponding path program 1 times [2024-10-24 01:35:57,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:35:57,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960462714] [2024-10-24 01:35:57,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:35:57,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:35:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:35:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:35:57,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:35:57,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960462714] [2024-10-24 01:35:57,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960462714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:35:57,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:35:57,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:35:57,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373940935] [2024-10-24 01:35:57,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:35:57,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:35:57,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:35:57,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:35:57,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:35:57,508 INFO L87 Difference]: Start difference. First operand 41653 states and 62177 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:35:58,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:35:58,290 INFO L93 Difference]: Finished difference Result 160774 states and 239401 transitions. [2024-10-24 01:35:58,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:35:58,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-10-24 01:35:58,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:35:58,459 INFO L225 Difference]: With dead ends: 160774 [2024-10-24 01:35:58,459 INFO L226 Difference]: Without dead ends: 119185 [2024-10-24 01:35:58,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:35:58,538 INFO L432 NwaCegarLoop]: 733 mSDtfsCounter, 812 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:35:58,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1502 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:35:58,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119185 states. [2024-10-24 01:36:00,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119185 to 80423. [2024-10-24 01:36:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80423 states, 80422 states have (on average 1.4752182238690905) internal successors, (118640), 80422 states have internal predecessors, (118640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:00,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80423 states to 80423 states and 118640 transitions. [2024-10-24 01:36:00,244 INFO L78 Accepts]: Start accepts. Automaton has 80423 states and 118640 transitions. Word has length 159 [2024-10-24 01:36:00,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:00,244 INFO L471 AbstractCegarLoop]: Abstraction has 80423 states and 118640 transitions. [2024-10-24 01:36:00,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:00,244 INFO L276 IsEmpty]: Start isEmpty. Operand 80423 states and 118640 transitions. [2024-10-24 01:36:00,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-24 01:36:00,265 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:00,265 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] [2024-10-24 01:36:00,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:36:00,265 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:00,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:00,266 INFO L85 PathProgramCache]: Analyzing trace with hash -269627487, now seen corresponding path program 1 times [2024-10-24 01:36:00,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:00,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537864360] [2024-10-24 01:36:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:00,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:00,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:36:00,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:00,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537864360] [2024-10-24 01:36:00,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537864360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:00,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:00,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:36:00,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994706205] [2024-10-24 01:36:00,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:00,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:36:00,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:00,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:36:00,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:36:00,342 INFO L87 Difference]: Start difference. First operand 80423 states and 118640 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:01,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:01,159 INFO L93 Difference]: Finished difference Result 160733 states and 237125 transitions. [2024-10-24 01:36:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:36:01,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-10-24 01:36:01,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:01,276 INFO L225 Difference]: With dead ends: 160733 [2024-10-24 01:36:01,276 INFO L226 Difference]: Without dead ends: 80431 [2024-10-24 01:36:01,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:36:01,321 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 0 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:01,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 871 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:36:01,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80431 states. [2024-10-24 01:36:02,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80431 to 80431. [2024-10-24 01:36:02,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80431 states, 80430 states have (on average 1.4751709561109039) internal successors, (118648), 80430 states have internal predecessors, (118648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:02,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80431 states to 80431 states and 118648 transitions. [2024-10-24 01:36:02,705 INFO L78 Accepts]: Start accepts. Automaton has 80431 states and 118648 transitions. Word has length 160 [2024-10-24 01:36:02,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:02,705 INFO L471 AbstractCegarLoop]: Abstraction has 80431 states and 118648 transitions. [2024-10-24 01:36:02,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:02,706 INFO L276 IsEmpty]: Start isEmpty. Operand 80431 states and 118648 transitions. [2024-10-24 01:36:02,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 01:36:02,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:02,739 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] [2024-10-24 01:36:02,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:36:02,739 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:02,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:02,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1469118402, now seen corresponding path program 1 times [2024-10-24 01:36:02,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:02,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602314051] [2024-10-24 01:36:02,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:02,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:02,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:36:02,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:02,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602314051] [2024-10-24 01:36:02,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602314051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:02,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:02,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:36:02,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389190503] [2024-10-24 01:36:02,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:02,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:36:02,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:02,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:36:02,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:36:02,865 INFO L87 Difference]: Start difference. First operand 80431 states and 118648 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:03,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:03,886 INFO L93 Difference]: Finished difference Result 217256 states and 319588 transitions. [2024-10-24 01:36:03,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:36:03,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2024-10-24 01:36:03,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:04,086 INFO L225 Difference]: With dead ends: 217256 [2024-10-24 01:36:04,086 INFO L226 Difference]: Without dead ends: 137922 [2024-10-24 01:36:04,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:36:04,171 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 356 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:04,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1206 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:36:04,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137922 states. [2024-10-24 01:36:06,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137922 to 137920. [2024-10-24 01:36:06,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137920 states, 137919 states have (on average 1.4506630703528882) internal successors, (200074), 137919 states have internal predecessors, (200074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:06,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137920 states to 137920 states and 200074 transitions. [2024-10-24 01:36:06,465 INFO L78 Accepts]: Start accepts. Automaton has 137920 states and 200074 transitions. Word has length 161 [2024-10-24 01:36:06,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:06,466 INFO L471 AbstractCegarLoop]: Abstraction has 137920 states and 200074 transitions. [2024-10-24 01:36:06,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:06,466 INFO L276 IsEmpty]: Start isEmpty. Operand 137920 states and 200074 transitions. [2024-10-24 01:36:06,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-24 01:36:06,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:06,523 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] [2024-10-24 01:36:06,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 01:36:06,524 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:06,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:06,524 INFO L85 PathProgramCache]: Analyzing trace with hash 552214815, now seen corresponding path program 1 times [2024-10-24 01:36:06,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:06,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278268667] [2024-10-24 01:36:06,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:06,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:07,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:36:07,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:07,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278268667] [2024-10-24 01:36:07,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278268667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:07,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:07,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:36:07,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268776230] [2024-10-24 01:36:07,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:07,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:36:07,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:07,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:36:07,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:36:07,596 INFO L87 Difference]: Start difference. First operand 137920 states and 200074 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:08,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:08,447 INFO L93 Difference]: Finished difference Result 256177 states and 371803 transitions. [2024-10-24 01:36:08,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:36:08,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2024-10-24 01:36:08,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:08,633 INFO L225 Difference]: With dead ends: 256177 [2024-10-24 01:36:08,634 INFO L226 Difference]: Without dead ends: 119234 [2024-10-24 01:36:08,749 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 [2024-10-24 01:36:08,750 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 15 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:08,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1368 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:36:08,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119234 states. [2024-10-24 01:36:10,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119234 to 119234. [2024-10-24 01:36:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119234 states, 119233 states have (on average 1.4500683535598367) internal successors, (172896), 119233 states have internal predecessors, (172896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:11,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119234 states to 119234 states and 172896 transitions. [2024-10-24 01:36:11,053 INFO L78 Accepts]: Start accepts. Automaton has 119234 states and 172896 transitions. Word has length 161 [2024-10-24 01:36:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:11,054 INFO L471 AbstractCegarLoop]: Abstraction has 119234 states and 172896 transitions. [2024-10-24 01:36:11,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:11,054 INFO L276 IsEmpty]: Start isEmpty. Operand 119234 states and 172896 transitions. [2024-10-24 01:36:11,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 01:36:11,080 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:11,080 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] [2024-10-24 01:36:11,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 01:36:11,081 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:11,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:11,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1856556306, now seen corresponding path program 1 times [2024-10-24 01:36:11,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:11,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967660805] [2024-10-24 01:36:11,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:11,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:11,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:36:11,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:11,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967660805] [2024-10-24 01:36:11,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967660805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:11,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:11,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:36:11,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279581376] [2024-10-24 01:36:11,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:11,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:36:11,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:11,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:36:11,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:36:11,267 INFO L87 Difference]: Start difference. First operand 119234 states and 172896 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 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) [2024-10-24 01:36:12,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:12,513 INFO L93 Difference]: Finished difference Result 183194 states and 271396 transitions. [2024-10-24 01:36:12,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:36:12,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 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 [2024-10-24 01:36:12,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:12,809 INFO L225 Difference]: With dead ends: 183194 [2024-10-24 01:36:12,809 INFO L226 Difference]: Without dead ends: 170344 [2024-10-24 01:36:12,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:36:12,843 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 989 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:12,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 1283 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:36:12,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170344 states. [2024-10-24 01:36:14,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170344 to 132034. [2024-10-24 01:36:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132034 states, 132033 states have (on average 1.457817363840858) internal successors, (192480), 132033 states have internal predecessors, (192480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:15,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132034 states to 132034 states and 192480 transitions. [2024-10-24 01:36:15,826 INFO L78 Accepts]: Start accepts. Automaton has 132034 states and 192480 transitions. Word has length 167 [2024-10-24 01:36:15,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:15,827 INFO L471 AbstractCegarLoop]: Abstraction has 132034 states and 192480 transitions. [2024-10-24 01:36:15,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 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) [2024-10-24 01:36:15,827 INFO L276 IsEmpty]: Start isEmpty. Operand 132034 states and 192480 transitions. [2024-10-24 01:36:15,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 01:36:15,857 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:15,857 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] [2024-10-24 01:36:15,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 01:36:15,858 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:15,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:15,858 INFO L85 PathProgramCache]: Analyzing trace with hash 22051905, now seen corresponding path program 1 times [2024-10-24 01:36:15,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:15,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068572913] [2024-10-24 01:36:15,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:15,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:36:16,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:16,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068572913] [2024-10-24 01:36:16,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068572913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:16,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:16,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 01:36:16,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061223594] [2024-10-24 01:36:16,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:16,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:36:16,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:16,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:36:16,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:36:16,277 INFO L87 Difference]: Start difference. First operand 132034 states and 192480 transitions. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 9 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) [2024-10-24 01:36:17,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:17,042 INFO L93 Difference]: Finished difference Result 247435 states and 360774 transitions. [2024-10-24 01:36:17,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:36:17,043 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 9 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 [2024-10-24 01:36:17,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:17,241 INFO L225 Difference]: With dead ends: 247435 [2024-10-24 01:36:17,241 INFO L226 Difference]: Without dead ends: 132034 [2024-10-24 01:36:17,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:36:17,342 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 1248 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:17,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 568 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:36:17,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132034 states. [2024-10-24 01:36:19,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132034 to 132034. [2024-10-24 01:36:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132034 states, 132033 states have (on average 1.4396097945210666) internal successors, (190076), 132033 states have internal predecessors, (190076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:19,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132034 states to 132034 states and 190076 transitions. [2024-10-24 01:36:19,669 INFO L78 Accepts]: Start accepts. Automaton has 132034 states and 190076 transitions. Word has length 167 [2024-10-24 01:36:19,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:19,670 INFO L471 AbstractCegarLoop]: Abstraction has 132034 states and 190076 transitions. [2024-10-24 01:36:19,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 9 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) [2024-10-24 01:36:19,670 INFO L276 IsEmpty]: Start isEmpty. Operand 132034 states and 190076 transitions. [2024-10-24 01:36:19,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 01:36:19,697 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:19,697 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] [2024-10-24 01:36:19,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 01:36:19,697 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:19,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:19,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2100142438, now seen corresponding path program 1 times [2024-10-24 01:36:19,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:19,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742909196] [2024-10-24 01:36:19,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:19,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:21,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:36:21,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:21,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742909196] [2024-10-24 01:36:21,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742909196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:21,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:21,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 01:36:21,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598192012] [2024-10-24 01:36:21,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:21,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 01:36:21,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:21,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 01:36:21,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-10-24 01:36:21,170 INFO L87 Difference]: Start difference. First operand 132034 states and 190076 transitions. Second operand has 15 states, 15 states have (on average 11.133333333333333) internal successors, (167), 15 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) [2024-10-24 01:36:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:22,870 INFO L93 Difference]: Finished difference Result 223956 states and 323265 transitions. [2024-10-24 01:36:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 01:36:22,871 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.133333333333333) internal successors, (167), 15 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 [2024-10-24 01:36:22,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:23,191 INFO L225 Difference]: With dead ends: 223956 [2024-10-24 01:36:23,191 INFO L226 Difference]: Without dead ends: 193374 [2024-10-24 01:36:23,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2024-10-24 01:36:23,284 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 2995 mSDsluCounter, 4116 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2995 SdHoareTripleChecker+Valid, 4638 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:23,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2995 Valid, 4638 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 01:36:23,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193374 states. [2024-10-24 01:36:25,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193374 to 137764. [2024-10-24 01:36:25,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137764 states, 137763 states have (on average 1.4280394590710133) internal successors, (196731), 137763 states have internal predecessors, (196731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:26,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137764 states to 137764 states and 196731 transitions. [2024-10-24 01:36:26,009 INFO L78 Accepts]: Start accepts. Automaton has 137764 states and 196731 transitions. Word has length 167 [2024-10-24 01:36:26,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:26,010 INFO L471 AbstractCegarLoop]: Abstraction has 137764 states and 196731 transitions. [2024-10-24 01:36:26,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.133333333333333) internal successors, (167), 15 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) [2024-10-24 01:36:26,010 INFO L276 IsEmpty]: Start isEmpty. Operand 137764 states and 196731 transitions. [2024-10-24 01:36:26,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 01:36:26,042 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:26,042 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] [2024-10-24 01:36:26,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 01:36:26,043 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:26,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:26,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1094789609, now seen corresponding path program 1 times [2024-10-24 01:36:26,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:26,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423282013] [2024-10-24 01:36:26,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:26,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:27,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:36:27,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:27,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423282013] [2024-10-24 01:36:27,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423282013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:27,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:27,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 01:36:27,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209427078] [2024-10-24 01:36:27,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:27,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:36:27,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:27,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:36:27,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:36:27,541 INFO L87 Difference]: Start difference. First operand 137764 states and 196731 transitions. Second operand has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 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) [2024-10-24 01:36:28,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:28,904 INFO L93 Difference]: Finished difference Result 199741 states and 286797 transitions. [2024-10-24 01:36:28,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:36:28,905 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 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 [2024-10-24 01:36:28,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:29,115 INFO L225 Difference]: With dead ends: 199741 [2024-10-24 01:36:29,115 INFO L226 Difference]: Without dead ends: 154829 [2024-10-24 01:36:29,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2024-10-24 01:36:29,687 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 2357 mSDsluCounter, 4244 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2357 SdHoareTripleChecker+Valid, 4778 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:29,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2357 Valid, 4778 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 01:36:29,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154829 states. [2024-10-24 01:36:31,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154829 to 143472. [2024-10-24 01:36:31,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143472 states, 143471 states have (on average 1.4184190533278502) internal successors, (203502), 143471 states have internal predecessors, (203502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:36:31,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143472 states to 143472 states and 203502 transitions. [2024-10-24 01:36:31,655 INFO L78 Accepts]: Start accepts. Automaton has 143472 states and 203502 transitions. Word has length 167 [2024-10-24 01:36:31,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:36:31,656 INFO L471 AbstractCegarLoop]: Abstraction has 143472 states and 203502 transitions. [2024-10-24 01:36:31,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 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) [2024-10-24 01:36:31,656 INFO L276 IsEmpty]: Start isEmpty. Operand 143472 states and 203502 transitions. [2024-10-24 01:36:31,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 01:36:31,691 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:36:31,691 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] [2024-10-24 01:36:31,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 01:36:31,691 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:36:31,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:36:31,692 INFO L85 PathProgramCache]: Analyzing trace with hash -229530877, now seen corresponding path program 1 times [2024-10-24 01:36:31,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:36:31,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110964139] [2024-10-24 01:36:31,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:36:31,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:36:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:36:32,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:36:32,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:36:32,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110964139] [2024-10-24 01:36:32,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110964139] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:36:32,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:36:32,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:36:32,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861900062] [2024-10-24 01:36:32,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:36:32,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:36:32,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:36:32,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:36:32,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:36:32,602 INFO L87 Difference]: Start difference. First operand 143472 states and 203502 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 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) [2024-10-24 01:36:33,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:36:33,369 INFO L93 Difference]: Finished difference Result 232848 states and 329985 transitions. [2024-10-24 01:36:33,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:36:33,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 3 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 [2024-10-24 01:36:33,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:36:33,599 INFO L225 Difference]: With dead ends: 232848 [2024-10-24 01:36:33,599 INFO L226 Difference]: Without dead ends: 127037 [2024-10-24 01:36:33,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:36:33,707 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 718 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:36:33,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 1094 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:36:33,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127037 states. [2024-10-24 01:36:35,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127037 to 126496. [2024-10-24 01:36:36,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126496 states, 126495 states have (on average 1.4144748804300564) internal successors, (178924), 126495 states have internal predecessors, (178924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)