./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.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 d52f31574095462f7bebf0d97516364dd650b64428a7b12e3aa21d1b47f96325 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:18:23,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:18:23,918 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:18:23,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:18:23,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:18:23,952 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:18:23,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:18:23,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:18:23,955 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:18:23,958 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:18:23,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:18:23,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:18:23,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:18:23,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:18:23,960 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:18:23,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:18:23,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:18:23,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:18:23,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:18:23,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:18:23,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:18:23,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:18:23,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:18:23,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:18:23,963 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:18:23,963 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:18:23,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:18:23,963 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:18:23,964 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:18:23,964 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:18:23,964 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:18:23,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:18:23,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:18:23,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:18:23,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:18:23,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:18:23,965 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:18:23,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:18:23,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:18:23,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:18:23,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:18:23,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:18:23,967 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d52f31574095462f7bebf0d97516364dd650b64428a7b12e3aa21d1b47f96325 [2024-11-16 08:18:24,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:18:24,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:18:24,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:18:24,228 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:18:24,228 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:18:24,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2024-11-16 08:18:25,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:18:25,627 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:18:25,628 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2024-11-16 08:18:25,640 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0147720f2/334c9db63c6145d7b6bd172089e17567/FLAG6fdaa1976 [2024-11-16 08:18:26,012 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0147720f2/334c9db63c6145d7b6bd172089e17567 [2024-11-16 08:18:26,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:18:26,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:18:26,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:18:26,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:18:26,020 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:18:26,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3163f6c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26, skipping insertion in model container [2024-11-16 08:18:26,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:18:26,247 WARN L250 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/pals_lcr.7.1.ufo.UNBOUNDED.pals.c[20084,20097] [2024-11-16 08:18:26,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:18:26,260 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:18:26,305 WARN L250 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/pals_lcr.7.1.ufo.UNBOUNDED.pals.c[20084,20097] [2024-11-16 08:18:26,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:18:26,324 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:18:26,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26 WrapperNode [2024-11-16 08:18:26,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:18:26,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:18:26,325 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:18:26,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:18:26,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,338 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,363 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 458 [2024-11-16 08:18:26,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:18:26,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:18:26,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:18:26,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:18:26,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,395 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]. [2024-11-16 08:18:26,395 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,405 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,407 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,408 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:18:26,411 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:18:26,411 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:18:26,411 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:18:26,412 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (1/1) ... [2024-11-16 08:18:26,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:18:26,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:18:26,456 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) [2024-11-16 08:18:26,463 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 [2024-11-16 08:18:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:18:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:18:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:18:26,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:18:26,619 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:18:26,620 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:18:27,003 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-16 08:18:27,003 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:18:27,022 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:18:27,023 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:18:27,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:18:27 BoogieIcfgContainer [2024-11-16 08:18:27,023 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:18:27,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:18:27,025 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:18:27,029 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:18:27,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:18:26" (1/3) ... [2024-11-16 08:18:27,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6aafb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:18:27, skipping insertion in model container [2024-11-16 08:18:27,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:18:26" (2/3) ... [2024-11-16 08:18:27,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6aafb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:18:27, skipping insertion in model container [2024-11-16 08:18:27,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:18:27" (3/3) ... [2024-11-16 08:18:27,033 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2024-11-16 08:18:27,045 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:18:27,046 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:18:27,098 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:18:27,104 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;@1c0622f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:18:27,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:18:27,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 118 states have (on average 1.7542372881355932) internal successors, (207), 119 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:27,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-16 08:18:27,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:27,123 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] [2024-11-16 08:18:27,125 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:27,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:27,131 INFO L85 PathProgramCache]: Analyzing trace with hash -151437219, now seen corresponding path program 1 times [2024-11-16 08:18:27,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:27,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792689158] [2024-11-16 08:18:27,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:27,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:27,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:27,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792689158] [2024-11-16 08:18:27,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792689158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:27,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:27,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 08:18:27,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251338789] [2024-11-16 08:18:27,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:27,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 08:18:27,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:27,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 08:18:27,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:18:27,436 INFO L87 Difference]: Start difference. First operand has 120 states, 118 states have (on average 1.7542372881355932) internal successors, (207), 119 states have internal predecessors, (207), 0 states have call successors, (0), 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 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:27,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:27,460 INFO L93 Difference]: Finished difference Result 180 states and 304 transitions. [2024-11-16 08:18:27,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 08:18:27,462 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-16 08:18:27,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:27,472 INFO L225 Difference]: With dead ends: 180 [2024-11-16 08:18:27,472 INFO L226 Difference]: Without dead ends: 115 [2024-11-16 08:18:27,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 08:18:27,479 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:27,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:27,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-16 08:18:27,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-16 08:18:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.7456140350877194) internal successors, (199), 114 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:27,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 199 transitions. [2024-11-16 08:18:27,549 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 199 transitions. Word has length 29 [2024-11-16 08:18:27,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:27,550 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 199 transitions. [2024-11-16 08:18:27,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:27,551 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 199 transitions. [2024-11-16 08:18:27,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-16 08:18:27,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:27,553 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] [2024-11-16 08:18:27,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:18:27,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:27,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:27,554 INFO L85 PathProgramCache]: Analyzing trace with hash -218443972, now seen corresponding path program 1 times [2024-11-16 08:18:27,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:27,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229267148] [2024-11-16 08:18:27,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:27,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:27,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:27,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229267148] [2024-11-16 08:18:27,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229267148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:27,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:27,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:18:27,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732591395] [2024-11-16 08:18:27,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:27,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:18:27,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:27,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:18:27,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:18:27,768 INFO L87 Difference]: Start difference. First operand 115 states and 199 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:27,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:27,862 INFO L93 Difference]: Finished difference Result 178 states and 296 transitions. [2024-11-16 08:18:27,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:18:27,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-11-16 08:18:27,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:27,867 INFO L225 Difference]: With dead ends: 178 [2024-11-16 08:18:27,868 INFO L226 Difference]: Without dead ends: 115 [2024-11-16 08:18:27,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:18:27,869 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:27,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 733 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:27,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-16 08:18:27,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-16 08:18:27,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.3070175438596492) internal successors, (149), 114 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:27,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 149 transitions. [2024-11-16 08:18:27,879 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 149 transitions. Word has length 29 [2024-11-16 08:18:27,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:27,880 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 149 transitions. [2024-11-16 08:18:27,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:27,880 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 149 transitions. [2024-11-16 08:18:27,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-16 08:18:27,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:27,882 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] [2024-11-16 08:18:27,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:18:27,882 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:27,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:27,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1827080114, now seen corresponding path program 1 times [2024-11-16 08:18:27,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:27,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562672772] [2024-11-16 08:18:27,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:27,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:28,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:28,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562672772] [2024-11-16 08:18:28,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562672772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:28,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:28,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:18:28,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166733232] [2024-11-16 08:18:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:28,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:18:28,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:28,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:18:28,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:18:28,220 INFO L87 Difference]: Start difference. First operand 115 states and 149 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:28,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:28,600 INFO L93 Difference]: Finished difference Result 941 states and 1451 transitions. [2024-11-16 08:18:28,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:18:28,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-16 08:18:28,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:28,605 INFO L225 Difference]: With dead ends: 941 [2024-11-16 08:18:28,605 INFO L226 Difference]: Without dead ends: 882 [2024-11-16 08:18:28,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-16 08:18:28,607 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 1507 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 3361 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:28,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 3361 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:18:28,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-16 08:18:28,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 171. [2024-11-16 08:18:28,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.4) internal successors, (238), 170 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:28,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 238 transitions. [2024-11-16 08:18:28,632 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 238 transitions. Word has length 78 [2024-11-16 08:18:28,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:28,633 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 238 transitions. [2024-11-16 08:18:28,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:28,633 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 238 transitions. [2024-11-16 08:18:28,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-16 08:18:28,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:28,636 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] [2024-11-16 08:18:28,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:18:28,637 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:28,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:28,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1471726004, now seen corresponding path program 1 times [2024-11-16 08:18:28,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:28,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265680695] [2024-11-16 08:18:28,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:28,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:29,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:29,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:29,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265680695] [2024-11-16 08:18:29,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265680695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:29,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:29,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:18:29,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117027078] [2024-11-16 08:18:29,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:29,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:18:29,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:29,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:18:29,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:18:29,076 INFO L87 Difference]: Start difference. First operand 171 states and 238 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:29,351 INFO L93 Difference]: Finished difference Result 289 states and 422 transitions. [2024-11-16 08:18:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:18:29,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-16 08:18:29,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:29,353 INFO L225 Difference]: With dead ends: 289 [2024-11-16 08:18:29,353 INFO L226 Difference]: Without dead ends: 174 [2024-11-16 08:18:29,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:18:29,355 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 450 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:29,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 680 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:29,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-16 08:18:29,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 171. [2024-11-16 08:18:29,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.3941176470588235) internal successors, (237), 170 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 237 transitions. [2024-11-16 08:18:29,364 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 237 transitions. Word has length 80 [2024-11-16 08:18:29,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:29,364 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 237 transitions. [2024-11-16 08:18:29,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,365 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 237 transitions. [2024-11-16 08:18:29,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 08:18:29,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:29,366 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] [2024-11-16 08:18:29,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:18:29,367 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:29,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:29,370 INFO L85 PathProgramCache]: Analyzing trace with hash 102685072, now seen corresponding path program 1 times [2024-11-16 08:18:29,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:29,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722780521] [2024-11-16 08:18:29,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:29,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:29,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:29,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:29,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722780521] [2024-11-16 08:18:29,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722780521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:29,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:29,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:29,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288226759] [2024-11-16 08:18:29,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:29,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:29,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:29,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:29,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:29,491 INFO L87 Difference]: Start difference. First operand 171 states and 237 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:29,513 INFO L93 Difference]: Finished difference Result 389 states and 579 transitions. [2024-11-16 08:18:29,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:29,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-16 08:18:29,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:29,514 INFO L225 Difference]: With dead ends: 389 [2024-11-16 08:18:29,515 INFO L226 Difference]: Without dead ends: 274 [2024-11-16 08:18:29,515 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 [2024-11-16 08:18:29,516 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 63 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:29,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 231 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:29,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-16 08:18:29,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 269. [2024-11-16 08:18:29,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 268 states have (on average 1.4514925373134329) internal successors, (389), 268 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 389 transitions. [2024-11-16 08:18:29,530 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 389 transitions. Word has length 81 [2024-11-16 08:18:29,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:29,530 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 389 transitions. [2024-11-16 08:18:29,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,531 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 389 transitions. [2024-11-16 08:18:29,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 08:18:29,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:29,536 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] [2024-11-16 08:18:29,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:18:29,536 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:29,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:29,536 INFO L85 PathProgramCache]: Analyzing trace with hash 101724182, now seen corresponding path program 1 times [2024-11-16 08:18:29,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:29,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168464776] [2024-11-16 08:18:29,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:29,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:29,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:29,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:29,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168464776] [2024-11-16 08:18:29,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168464776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:29,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:29,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:29,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818735632] [2024-11-16 08:18:29,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:29,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:29,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:29,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:29,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:29,611 INFO L87 Difference]: Start difference. First operand 269 states and 389 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:29,629 INFO L93 Difference]: Finished difference Result 679 states and 1027 transitions. [2024-11-16 08:18:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:29,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-16 08:18:29,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:29,632 INFO L225 Difference]: With dead ends: 679 [2024-11-16 08:18:29,632 INFO L226 Difference]: Without dead ends: 466 [2024-11-16 08:18:29,633 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 [2024-11-16 08:18:29,634 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 80 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:29,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 316 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:29,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-16 08:18:29,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 463. [2024-11-16 08:18:29,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.4891774891774892) internal successors, (688), 462 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 688 transitions. [2024-11-16 08:18:29,646 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 688 transitions. Word has length 82 [2024-11-16 08:18:29,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:29,646 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 688 transitions. [2024-11-16 08:18:29,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,646 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 688 transitions. [2024-11-16 08:18:29,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 08:18:29,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:29,647 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] [2024-11-16 08:18:29,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:18:29,648 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:29,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:29,648 INFO L85 PathProgramCache]: Analyzing trace with hash -388742314, now seen corresponding path program 1 times [2024-11-16 08:18:29,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:29,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952906354] [2024-11-16 08:18:29,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:29,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:29,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:29,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:29,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952906354] [2024-11-16 08:18:29,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952906354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:29,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:29,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:29,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929292347] [2024-11-16 08:18:29,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:29,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:29,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:29,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:29,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:29,701 INFO L87 Difference]: Start difference. First operand 463 states and 688 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:29,723 INFO L93 Difference]: Finished difference Result 1245 states and 1896 transitions. [2024-11-16 08:18:29,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:29,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-16 08:18:29,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:29,728 INFO L225 Difference]: With dead ends: 1245 [2024-11-16 08:18:29,729 INFO L226 Difference]: Without dead ends: 838 [2024-11-16 08:18:29,729 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 [2024-11-16 08:18:29,730 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 78 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:29,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 318 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:29,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-16 08:18:29,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 835. [2024-11-16 08:18:29,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 834 states have (on average 1.5035971223021583) internal successors, (1254), 834 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1254 transitions. [2024-11-16 08:18:29,759 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1254 transitions. Word has length 82 [2024-11-16 08:18:29,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:29,759 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1254 transitions. [2024-11-16 08:18:29,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1254 transitions. [2024-11-16 08:18:29,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 08:18:29,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:29,760 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] [2024-11-16 08:18:29,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:18:29,760 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:29,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:29,761 INFO L85 PathProgramCache]: Analyzing trace with hash -670816618, now seen corresponding path program 1 times [2024-11-16 08:18:29,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:29,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573359783] [2024-11-16 08:18:29,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:29,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:29,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:29,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573359783] [2024-11-16 08:18:29,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573359783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:29,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:29,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:29,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356193353] [2024-11-16 08:18:29,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:29,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:29,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:29,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:29,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:29,816 INFO L87 Difference]: Start difference. First operand 835 states and 1254 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:29,844 INFO L93 Difference]: Finished difference Result 2329 states and 3538 transitions. [2024-11-16 08:18:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:29,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-16 08:18:29,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:29,849 INFO L225 Difference]: With dead ends: 2329 [2024-11-16 08:18:29,850 INFO L226 Difference]: Without dead ends: 1550 [2024-11-16 08:18:29,851 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 [2024-11-16 08:18:29,852 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 76 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:29,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 320 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:29,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2024-11-16 08:18:29,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1547. [2024-11-16 08:18:29,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1546 states have (on average 1.5019404915912031) internal successors, (2322), 1546 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2322 transitions. [2024-11-16 08:18:29,881 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2322 transitions. Word has length 82 [2024-11-16 08:18:29,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:29,882 INFO L471 AbstractCegarLoop]: Abstraction has 1547 states and 2322 transitions. [2024-11-16 08:18:29,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2322 transitions. [2024-11-16 08:18:29,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 08:18:29,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:29,883 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] [2024-11-16 08:18:29,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:18:29,883 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:29,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:29,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1672226346, now seen corresponding path program 1 times [2024-11-16 08:18:29,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:29,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268623468] [2024-11-16 08:18:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:29,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:29,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:29,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:29,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268623468] [2024-11-16 08:18:29,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268623468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:29,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:29,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:29,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420947173] [2024-11-16 08:18:29,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:29,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:29,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:29,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:29,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:29,939 INFO L87 Difference]: Start difference. First operand 1547 states and 2322 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:29,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:29,979 INFO L93 Difference]: Finished difference Result 4401 states and 6630 transitions. [2024-11-16 08:18:29,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:29,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-16 08:18:29,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:29,987 INFO L225 Difference]: With dead ends: 4401 [2024-11-16 08:18:29,988 INFO L226 Difference]: Without dead ends: 2910 [2024-11-16 08:18:29,990 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 [2024-11-16 08:18:29,991 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 74 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:29,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 322 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:29,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2910 states. [2024-11-16 08:18:30,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2910 to 2907. [2024-11-16 08:18:30,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2907 states, 2906 states have (on average 1.490020646937371) internal successors, (4330), 2906 states have internal predecessors, (4330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:30,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 4330 transitions. [2024-11-16 08:18:30,063 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 4330 transitions. Word has length 82 [2024-11-16 08:18:30,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:30,064 INFO L471 AbstractCegarLoop]: Abstraction has 2907 states and 4330 transitions. [2024-11-16 08:18:30,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:30,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 4330 transitions. [2024-11-16 08:18:30,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 08:18:30,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:30,065 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] [2024-11-16 08:18:30,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:18:30,065 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:30,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:30,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1686676202, now seen corresponding path program 1 times [2024-11-16 08:18:30,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:30,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444045119] [2024-11-16 08:18:30,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:30,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:30,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:30,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444045119] [2024-11-16 08:18:30,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444045119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:30,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:30,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:30,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706846584] [2024-11-16 08:18:30,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:30,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:30,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:30,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:30,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:30,120 INFO L87 Difference]: Start difference. First operand 2907 states and 4330 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:30,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:30,180 INFO L93 Difference]: Finished difference Result 8353 states and 12430 transitions. [2024-11-16 08:18:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:30,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-16 08:18:30,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:30,194 INFO L225 Difference]: With dead ends: 8353 [2024-11-16 08:18:30,194 INFO L226 Difference]: Without dead ends: 5502 [2024-11-16 08:18:30,198 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 [2024-11-16 08:18:30,199 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 72 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:30,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 324 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:30,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2024-11-16 08:18:30,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5499. [2024-11-16 08:18:30,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 1.4714441615132776) internal successors, (8090), 5498 states have internal predecessors, (8090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 8090 transitions. [2024-11-16 08:18:30,331 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 8090 transitions. Word has length 82 [2024-11-16 08:18:30,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:30,331 INFO L471 AbstractCegarLoop]: Abstraction has 5499 states and 8090 transitions. [2024-11-16 08:18:30,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:30,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 8090 transitions. [2024-11-16 08:18:30,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 08:18:30,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:30,332 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] [2024-11-16 08:18:30,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:18:30,332 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:30,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:30,333 INFO L85 PathProgramCache]: Analyzing trace with hash 404926550, now seen corresponding path program 1 times [2024-11-16 08:18:30,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:30,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148601505] [2024-11-16 08:18:30,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:30,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:30,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:30,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:30,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148601505] [2024-11-16 08:18:30,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148601505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:30,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:30,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:30,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4724764] [2024-11-16 08:18:30,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:30,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:30,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:30,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:30,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:30,377 INFO L87 Difference]: Start difference. First operand 5499 states and 8090 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:30,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:30,486 INFO L93 Difference]: Finished difference Result 15873 states and 23262 transitions. [2024-11-16 08:18:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:30,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-16 08:18:30,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:30,513 INFO L225 Difference]: With dead ends: 15873 [2024-11-16 08:18:30,514 INFO L226 Difference]: Without dead ends: 10430 [2024-11-16 08:18:30,521 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 [2024-11-16 08:18:30,522 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 70 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:30,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 326 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:30,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10430 states. [2024-11-16 08:18:30,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10430 to 10427. [2024-11-16 08:18:30,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10427 states, 10426 states have (on average 1.4481104929982735) internal successors, (15098), 10426 states have internal predecessors, (15098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:30,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10427 states to 10427 states and 15098 transitions. [2024-11-16 08:18:30,780 INFO L78 Accepts]: Start accepts. Automaton has 10427 states and 15098 transitions. Word has length 82 [2024-11-16 08:18:30,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:30,780 INFO L471 AbstractCegarLoop]: Abstraction has 10427 states and 15098 transitions. [2024-11-16 08:18:30,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:30,780 INFO L276 IsEmpty]: Start isEmpty. Operand 10427 states and 15098 transitions. [2024-11-16 08:18:30,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 08:18:30,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:30,781 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] [2024-11-16 08:18:30,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:18:30,781 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:30,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:30,781 INFO L85 PathProgramCache]: Analyzing trace with hash -119350505, now seen corresponding path program 1 times [2024-11-16 08:18:30,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:30,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606872000] [2024-11-16 08:18:30,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:30,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:31,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:31,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:31,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606872000] [2024-11-16 08:18:31,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606872000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:31,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:31,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:18:31,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558671614] [2024-11-16 08:18:31,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:31,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:18:31,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:31,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:18:31,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:31,022 INFO L87 Difference]: Start difference. First operand 10427 states and 15098 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:31,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:31,141 INFO L93 Difference]: Finished difference Result 10814 states and 15612 transitions. [2024-11-16 08:18:31,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:18:31,142 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-16 08:18:31,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:31,170 INFO L225 Difference]: With dead ends: 10814 [2024-11-16 08:18:31,170 INFO L226 Difference]: Without dead ends: 10811 [2024-11-16 08:18:31,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:18:31,175 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:31,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 988 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:31,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10811 states. [2024-11-16 08:18:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10811 to 10811. [2024-11-16 08:18:31,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10811 states, 10810 states have (on average 1.4262719703977798) internal successors, (15418), 10810 states have internal predecessors, (15418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:31,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10811 states to 10811 states and 15418 transitions. [2024-11-16 08:18:31,379 INFO L78 Accepts]: Start accepts. Automaton has 10811 states and 15418 transitions. Word has length 82 [2024-11-16 08:18:31,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:31,380 INFO L471 AbstractCegarLoop]: Abstraction has 10811 states and 15418 transitions. [2024-11-16 08:18:31,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:31,380 INFO L276 IsEmpty]: Start isEmpty. Operand 10811 states and 15418 transitions. [2024-11-16 08:18:31,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 08:18:31,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:31,381 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] [2024-11-16 08:18:31,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:18:31,381 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:31,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:31,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1008627734, now seen corresponding path program 1 times [2024-11-16 08:18:31,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:31,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123536450] [2024-11-16 08:18:31,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:31,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:31,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:18:31,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:31,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123536450] [2024-11-16 08:18:31,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123536450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:31,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:31,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:18:31,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382332289] [2024-11-16 08:18:31,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:31,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:18:31,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:31,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:18:31,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:18:31,428 INFO L87 Difference]: Start difference. First operand 10811 states and 15418 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:31,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:31,587 INFO L93 Difference]: Finished difference Result 22085 states and 31683 transitions. [2024-11-16 08:18:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:18:31,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-16 08:18:31,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:31,610 INFO L225 Difference]: With dead ends: 22085 [2024-11-16 08:18:31,610 INFO L226 Difference]: Without dead ends: 16065 [2024-11-16 08:18:31,620 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 [2024-11-16 08:18:31,621 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 79 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:31,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 317 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:18:31,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16065 states. [2024-11-16 08:18:31,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16065 to 16062. [2024-11-16 08:18:32,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16062 states, 16061 states have (on average 1.4184048315796027) internal successors, (22781), 16061 states have internal predecessors, (22781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16062 states to 16062 states and 22781 transitions. [2024-11-16 08:18:32,034 INFO L78 Accepts]: Start accepts. Automaton has 16062 states and 22781 transitions. Word has length 84 [2024-11-16 08:18:32,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:32,035 INFO L471 AbstractCegarLoop]: Abstraction has 16062 states and 22781 transitions. [2024-11-16 08:18:32,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:32,035 INFO L276 IsEmpty]: Start isEmpty. Operand 16062 states and 22781 transitions. [2024-11-16 08:18:32,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 08:18:32,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:32,040 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:32,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:18:32,040 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:32,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:32,040 INFO L85 PathProgramCache]: Analyzing trace with hash -2088913065, now seen corresponding path program 1 times [2024-11-16 08:18:32,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:32,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532671520] [2024-11-16 08:18:32,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:32,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:32,313 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 08:18:32,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:32,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532671520] [2024-11-16 08:18:32,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532671520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:32,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:32,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:18:32,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387894760] [2024-11-16 08:18:32,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:32,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:18:32,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:32,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:18:32,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:18:32,315 INFO L87 Difference]: Start difference. First operand 16062 states and 22781 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:33,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:33,586 INFO L93 Difference]: Finished difference Result 131414 states and 186381 transitions. [2024-11-16 08:18:33,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:18:33,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 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 107 [2024-11-16 08:18:33,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:33,856 INFO L225 Difference]: With dead ends: 131414 [2024-11-16 08:18:33,856 INFO L226 Difference]: Without dead ends: 115411 [2024-11-16 08:18:33,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:18:33,910 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 1221 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:33,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 1825 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:33,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115411 states. [2024-11-16 08:18:35,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115411 to 32062. [2024-11-16 08:18:35,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32062 states, 32061 states have (on average 1.4132123140263873) internal successors, (45309), 32061 states have internal predecessors, (45309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:35,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32062 states to 32062 states and 45309 transitions. [2024-11-16 08:18:35,133 INFO L78 Accepts]: Start accepts. Automaton has 32062 states and 45309 transitions. Word has length 107 [2024-11-16 08:18:35,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:35,134 INFO L471 AbstractCegarLoop]: Abstraction has 32062 states and 45309 transitions. [2024-11-16 08:18:35,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:35,134 INFO L276 IsEmpty]: Start isEmpty. Operand 32062 states and 45309 transitions. [2024-11-16 08:18:35,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 08:18:35,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:35,138 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:35,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:18:35,138 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:35,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:35,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1715587735, now seen corresponding path program 1 times [2024-11-16 08:18:35,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:35,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161006381] [2024-11-16 08:18:35,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:35,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:35,348 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 08:18:35,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:35,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161006381] [2024-11-16 08:18:35,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161006381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:35,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:35,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:18:35,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611441135] [2024-11-16 08:18:35,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:35,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:18:35,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:35,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:18:35,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:18:35,350 INFO L87 Difference]: Start difference. First operand 32062 states and 45309 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:37,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:37,244 INFO L93 Difference]: Finished difference Result 147414 states and 208909 transitions. [2024-11-16 08:18:37,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:18:37,245 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 107 [2024-11-16 08:18:37,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:37,439 INFO L225 Difference]: With dead ends: 147414 [2024-11-16 08:18:37,439 INFO L226 Difference]: Without dead ends: 131411 [2024-11-16 08:18:37,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:18:37,472 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 1253 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:37,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 1638 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:37,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131411 states. [2024-11-16 08:18:39,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131411 to 56126. [2024-11-16 08:18:39,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56126 states, 56125 states have (on average 1.4070913140311805) internal successors, (78973), 56125 states have internal predecessors, (78973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:39,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56126 states to 56126 states and 78973 transitions. [2024-11-16 08:18:39,242 INFO L78 Accepts]: Start accepts. Automaton has 56126 states and 78973 transitions. Word has length 107 [2024-11-16 08:18:39,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:39,243 INFO L471 AbstractCegarLoop]: Abstraction has 56126 states and 78973 transitions. [2024-11-16 08:18:39,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:39,243 INFO L276 IsEmpty]: Start isEmpty. Operand 56126 states and 78973 transitions. [2024-11-16 08:18:39,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 08:18:39,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:39,249 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:39,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:18:39,250 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:39,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:39,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1433513431, now seen corresponding path program 1 times [2024-11-16 08:18:39,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:39,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697842991] [2024-11-16 08:18:39,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:39,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:39,462 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 08:18:39,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:39,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697842991] [2024-11-16 08:18:39,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697842991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:39,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:39,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:18:39,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821287274] [2024-11-16 08:18:39,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:39,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:18:39,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:39,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:18:39,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:18:39,467 INFO L87 Difference]: Start difference. First operand 56126 states and 78973 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:41,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:41,792 INFO L93 Difference]: Finished difference Result 163414 states and 231437 transitions. [2024-11-16 08:18:41,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:18:41,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 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 107 [2024-11-16 08:18:41,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:41,999 INFO L225 Difference]: With dead ends: 163414 [2024-11-16 08:18:41,999 INFO L226 Difference]: Without dead ends: 147411 [2024-11-16 08:18:42,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:18:42,025 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 1296 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:42,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 1559 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:42,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147411 states. [2024-11-16 08:18:44,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147411 to 72126. [2024-11-16 08:18:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72126 states, 72125 states have (on average 1.4072928942807625) internal successors, (101501), 72125 states have internal predecessors, (101501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:44,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72126 states to 72126 states and 101501 transitions. [2024-11-16 08:18:44,425 INFO L78 Accepts]: Start accepts. Automaton has 72126 states and 101501 transitions. Word has length 107 [2024-11-16 08:18:44,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:44,426 INFO L471 AbstractCegarLoop]: Abstraction has 72126 states and 101501 transitions. [2024-11-16 08:18:44,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:44,426 INFO L276 IsEmpty]: Start isEmpty. Operand 72126 states and 101501 transitions. [2024-11-16 08:18:44,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 08:18:44,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:44,433 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:44,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:18:44,433 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:44,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:44,434 INFO L85 PathProgramCache]: Analyzing trace with hash 432103703, now seen corresponding path program 1 times [2024-11-16 08:18:44,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:44,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135964968] [2024-11-16 08:18:44,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:44,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:18:44,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:44,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135964968] [2024-11-16 08:18:44,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135964968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:44,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:44,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:18:44,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097496135] [2024-11-16 08:18:44,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:44,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:18:44,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:44,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:18:44,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:18:44,650 INFO L87 Difference]: Start difference. First operand 72126 states and 101501 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:47,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:47,399 INFO L93 Difference]: Finished difference Result 179414 states and 253965 transitions. [2024-11-16 08:18:47,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:18:47,399 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 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 107 [2024-11-16 08:18:47,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:47,636 INFO L225 Difference]: With dead ends: 179414 [2024-11-16 08:18:47,636 INFO L226 Difference]: Without dead ends: 163411 [2024-11-16 08:18:47,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:18:47,675 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 1348 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:47,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 1524 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:47,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163411 states. [2024-11-16 08:18:50,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163411 to 88126. [2024-11-16 08:18:50,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88126 states, 88125 states have (on average 1.4074212765957448) internal successors, (124029), 88125 states have internal predecessors, (124029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88126 states to 88126 states and 124029 transitions. [2024-11-16 08:18:50,506 INFO L78 Accepts]: Start accepts. Automaton has 88126 states and 124029 transitions. Word has length 107 [2024-11-16 08:18:50,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:50,507 INFO L471 AbstractCegarLoop]: Abstraction has 88126 states and 124029 transitions. [2024-11-16 08:18:50,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:50,507 INFO L276 IsEmpty]: Start isEmpty. Operand 88126 states and 124029 transitions. [2024-11-16 08:18:50,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 08:18:50,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:50,515 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:50,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:18:50,515 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:50,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:50,516 INFO L85 PathProgramCache]: Analyzing trace with hash 417653847, now seen corresponding path program 1 times [2024-11-16 08:18:50,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:50,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344875687] [2024-11-16 08:18:50,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:50,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:50,682 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 08:18:50,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:50,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344875687] [2024-11-16 08:18:50,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344875687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:50,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:50,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:18:50,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365027592] [2024-11-16 08:18:50,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:50,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:18:50,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:50,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:18:50,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:18:50,684 INFO L87 Difference]: Start difference. First operand 88126 states and 124029 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:54,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:18:54,076 INFO L93 Difference]: Finished difference Result 195414 states and 276493 transitions. [2024-11-16 08:18:54,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:18:54,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 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 107 [2024-11-16 08:18:54,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:18:54,334 INFO L225 Difference]: With dead ends: 195414 [2024-11-16 08:18:54,334 INFO L226 Difference]: Without dead ends: 179411 [2024-11-16 08:18:54,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:18:54,370 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 1409 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:18:54,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 1560 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:18:54,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179411 states. [2024-11-16 08:18:57,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179411 to 104126. [2024-11-16 08:18:57,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104126 states, 104125 states have (on average 1.4075102040816327) internal successors, (146557), 104125 states have internal predecessors, (146557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:57,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104126 states to 104126 states and 146557 transitions. [2024-11-16 08:18:57,498 INFO L78 Accepts]: Start accepts. Automaton has 104126 states and 146557 transitions. Word has length 107 [2024-11-16 08:18:57,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:18:57,499 INFO L471 AbstractCegarLoop]: Abstraction has 104126 states and 146557 transitions. [2024-11-16 08:18:57,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:18:57,499 INFO L276 IsEmpty]: Start isEmpty. Operand 104126 states and 146557 transitions. [2024-11-16 08:18:57,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 08:18:57,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:18:57,506 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:18:57,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:18:57,506 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:18:57,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:18:57,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1785710697, now seen corresponding path program 1 times [2024-11-16 08:18:57,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:18:57,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809308128] [2024-11-16 08:18:57,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:18:57,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:18:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:18:57,957 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 08:18:57,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:18:57,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809308128] [2024-11-16 08:18:57,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809308128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:18:57,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:18:57,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:18:57,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48025129] [2024-11-16 08:18:57,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:18:57,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:18:57,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:18:57,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:18:57,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:18:57,961 INFO L87 Difference]: Start difference. First operand 104126 states and 146557 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:19:01,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:19:01,522 INFO L93 Difference]: Finished difference Result 211414 states and 299021 transitions. [2024-11-16 08:19:01,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:19:01,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 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 107 [2024-11-16 08:19:01,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:19:01,793 INFO L225 Difference]: With dead ends: 211414 [2024-11-16 08:19:01,794 INFO L226 Difference]: Without dead ends: 195411 [2024-11-16 08:19:01,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:19:01,831 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 1246 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:19:01,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1746 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:19:01,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195411 states.