./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a42ac25ff9e63a0c1036bc9e6198406f6fa05f356e4b6e7ac8346847c92ee58 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:17:24,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:17:24,854 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:17:24,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:17:24,867 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:17:24,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:17:24,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:17:24,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:17:24,901 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:17:24,901 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:17:24,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:17:24,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:17:24,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:17:24,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:17:24,905 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:17:24,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:17:24,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:17:24,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:17:24,907 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:17:24,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:17:24,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:17:24,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:17:24,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:17:24,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:17:24,912 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:17:24,912 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:17:24,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:17:24,913 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:17:24,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:17:24,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:17:24,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:17:24,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:17:24,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:17:24,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:17:24,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:17:24,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:17:24,919 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:17:24,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:17:24,920 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:17:24,920 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:17:24,920 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:17:24,921 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:17:24,921 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a42ac25ff9e63a0c1036bc9e6198406f6fa05f356e4b6e7ac8346847c92ee58 [2024-10-12 20:17:25,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:17:25,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:17:25,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:17:25,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:17:25,258 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:17:25,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-12 20:17:26,687 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:17:27,002 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:17:27,004 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-12 20:17:27,026 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d2209a70/9b1d0ebda2ff4e44af240269d9b76f81/FLAG465797f86 [2024-10-12 20:17:27,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d2209a70/9b1d0ebda2ff4e44af240269d9b76f81 [2024-10-12 20:17:27,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:17:27,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:17:27,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:17:27,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:17:27,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:17:27,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:17:27" (1/1) ... [2024-10-12 20:17:27,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74bf06ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:27, skipping insertion in model container [2024-10-12 20:17:27,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:17:27" (1/1) ... [2024-10-12 20:17:27,357 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:17:28,002 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[31925,31938] [2024-10-12 20:17:28,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:17:28,160 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:17:28,345 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[31925,31938] [2024-10-12 20:17:28,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:17:28,459 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:17:28,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28 WrapperNode [2024-10-12 20:17:28,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:17:28,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:17:28,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:17:28,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:17:28,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,601 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2820 [2024-10-12 20:17:28,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:17:28,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:17:28,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:17:28,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:17:28,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,626 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,671 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 20:17:28,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,702 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:17:28,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:17:28,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:17:28,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:17:28,776 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (1/1) ... [2024-10-12 20:17:28,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:17:28,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:17:28,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 20:17:28,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 20:17:28,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:17:28,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:17:28,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:17:28,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:17:29,040 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:17:29,042 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:17:31,174 INFO L? ?]: Removed 181 outVars from TransFormulas that were not future-live. [2024-10-12 20:17:31,174 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:17:31,270 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:17:31,271 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 20:17:31,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:17:31 BoogieIcfgContainer [2024-10-12 20:17:31,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:17:31,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:17:31,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:17:31,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:17:31,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:17:27" (1/3) ... [2024-10-12 20:17:31,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ada8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:17:31, skipping insertion in model container [2024-10-12 20:17:31,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:17:28" (2/3) ... [2024-10-12 20:17:31,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ada8cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:17:31, skipping insertion in model container [2024-10-12 20:17:31,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:17:31" (3/3) ... [2024-10-12 20:17:31,279 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-12 20:17:31,296 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:17:31,297 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:17:31,396 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:17:31,404 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;@2c7ddeaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:17:31,406 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:17:31,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 730 states, 728 states have (on average 1.7884615384615385) internal successors, (1302), 729 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:31,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-10-12 20:17:31,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:31,445 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:31,446 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:31,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:31,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1751041838, now seen corresponding path program 1 times [2024-10-12 20:17:31,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:31,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720621831] [2024-10-12 20:17:31,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:31,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:32,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:32,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720621831] [2024-10-12 20:17:32,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720621831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:32,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:32,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:32,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793373708] [2024-10-12 20:17:32,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:32,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:32,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:32,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:32,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:32,484 INFO L87 Difference]: Start difference. First operand has 730 states, 728 states have (on average 1.7884615384615385) internal successors, (1302), 729 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:32,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:32,770 INFO L93 Difference]: Finished difference Result 1368 states and 2424 transitions. [2024-10-12 20:17:32,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:17:32,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 309 [2024-10-12 20:17:32,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:32,802 INFO L225 Difference]: With dead ends: 1368 [2024-10-12 20:17:32,802 INFO L226 Difference]: Without dead ends: 1180 [2024-10-12 20:17:32,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:32,810 INFO L432 NwaCegarLoop]: 1237 mSDtfsCounter, 766 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:32,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2293 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:17:32,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2024-10-12 20:17:32,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1178. [2024-10-12 20:17:32,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1177 states have (on average 1.5505522514868308) internal successors, (1825), 1177 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:32,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1825 transitions. [2024-10-12 20:17:32,908 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1825 transitions. Word has length 309 [2024-10-12 20:17:32,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:32,909 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1825 transitions. [2024-10-12 20:17:32,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:32,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1825 transitions. [2024-10-12 20:17:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-10-12 20:17:32,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:32,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:32,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:17:32,918 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:32,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:32,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1729549398, now seen corresponding path program 1 times [2024-10-12 20:17:32,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:32,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546621690] [2024-10-12 20:17:32,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:32,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:33,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:33,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:33,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546621690] [2024-10-12 20:17:33,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546621690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:33,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:33,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:33,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204591381] [2024-10-12 20:17:33,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:33,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:33,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:33,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:33,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:33,423 INFO L87 Difference]: Start difference. First operand 1178 states and 1825 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:33,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:33,645 INFO L93 Difference]: Finished difference Result 2362 states and 3686 transitions. [2024-10-12 20:17:33,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:17:33,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 309 [2024-10-12 20:17:33,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:33,660 INFO L225 Difference]: With dead ends: 2362 [2024-10-12 20:17:33,661 INFO L226 Difference]: Without dead ends: 2044 [2024-10-12 20:17:33,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:33,665 INFO L432 NwaCegarLoop]: 1068 mSDtfsCounter, 607 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:33,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 1970 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:17:33,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2024-10-12 20:17:33,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 2042. [2024-10-12 20:17:33,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2042 states, 2041 states have (on average 1.5438510534051935) internal successors, (3151), 2041 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:33,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2042 states to 2042 states and 3151 transitions. [2024-10-12 20:17:33,726 INFO L78 Accepts]: Start accepts. Automaton has 2042 states and 3151 transitions. Word has length 309 [2024-10-12 20:17:33,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:33,728 INFO L471 AbstractCegarLoop]: Abstraction has 2042 states and 3151 transitions. [2024-10-12 20:17:33,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:33,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2042 states and 3151 transitions. [2024-10-12 20:17:33,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-10-12 20:17:33,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:33,737 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:33,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:17:33,737 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:33,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:33,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1733724560, now seen corresponding path program 1 times [2024-10-12 20:17:33,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:33,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3167079] [2024-10-12 20:17:33,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:33,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:35,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:35,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3167079] [2024-10-12 20:17:35,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3167079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:35,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:35,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:35,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429713423] [2024-10-12 20:17:35,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:35,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:17:35,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:35,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:17:35,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:17:35,284 INFO L87 Difference]: Start difference. First operand 2042 states and 3151 transitions. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:35,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:35,598 INFO L93 Difference]: Finished difference Result 10024 states and 15444 transitions. [2024-10-12 20:17:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:17:35,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 309 [2024-10-12 20:17:35,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:35,630 INFO L225 Difference]: With dead ends: 10024 [2024-10-12 20:17:35,630 INFO L226 Difference]: Without dead ends: 7992 [2024-10-12 20:17:35,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:17:35,638 INFO L432 NwaCegarLoop]: 1873 mSDtfsCounter, 3405 mSDsluCounter, 2917 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3405 SdHoareTripleChecker+Valid, 4790 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:35,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3405 Valid, 4790 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:17:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2024-10-12 20:17:35,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 4008. [2024-10-12 20:17:35,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 4007 states have (on average 1.5340653855752433) internal successors, (6147), 4007 states have internal predecessors, (6147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:35,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 6147 transitions. [2024-10-12 20:17:35,771 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 6147 transitions. Word has length 309 [2024-10-12 20:17:35,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:35,772 INFO L471 AbstractCegarLoop]: Abstraction has 4008 states and 6147 transitions. [2024-10-12 20:17:35,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:35,775 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 6147 transitions. [2024-10-12 20:17:35,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-10-12 20:17:35,785 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:35,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:35,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 20:17:35,786 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:35,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:35,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1562560580, now seen corresponding path program 1 times [2024-10-12 20:17:35,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:35,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860272383] [2024-10-12 20:17:35,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:35,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:36,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:36,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860272383] [2024-10-12 20:17:36,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860272383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:36,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:36,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:36,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514642953] [2024-10-12 20:17:36,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:36,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:36,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:36,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:36,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:36,067 INFO L87 Difference]: Start difference. First operand 4008 states and 6147 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:36,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:36,207 INFO L93 Difference]: Finished difference Result 11759 states and 17991 transitions. [2024-10-12 20:17:36,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:17:36,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 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 311 [2024-10-12 20:17:36,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:36,239 INFO L225 Difference]: With dead ends: 11759 [2024-10-12 20:17:36,239 INFO L226 Difference]: Without dead ends: 7875 [2024-10-12 20:17:36,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:36,249 INFO L432 NwaCegarLoop]: 2134 mSDtfsCounter, 994 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 3208 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:36,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 3208 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:17:36,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7875 states. [2024-10-12 20:17:36,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7875 to 7873. [2024-10-12 20:17:36,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7873 states, 7872 states have (on average 1.5251524390243902) internal successors, (12006), 7872 states have internal predecessors, (12006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:36,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7873 states to 7873 states and 12006 transitions. [2024-10-12 20:17:36,460 INFO L78 Accepts]: Start accepts. Automaton has 7873 states and 12006 transitions. Word has length 311 [2024-10-12 20:17:36,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:36,461 INFO L471 AbstractCegarLoop]: Abstraction has 7873 states and 12006 transitions. [2024-10-12 20:17:36,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 7873 states and 12006 transitions. [2024-10-12 20:17:36,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-10-12 20:17:36,477 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:36,478 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:36,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 20:17:36,478 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:36,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:36,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1531852161, now seen corresponding path program 1 times [2024-10-12 20:17:36,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:36,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467942431] [2024-10-12 20:17:36,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:36,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:36,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:36,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:36,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467942431] [2024-10-12 20:17:36,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467942431] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:36,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:36,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:36,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627151984] [2024-10-12 20:17:36,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:36,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:36,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:36,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:36,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:36,631 INFO L87 Difference]: Start difference. First operand 7873 states and 12006 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:36,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:36,818 INFO L93 Difference]: Finished difference Result 23554 states and 35904 transitions. [2024-10-12 20:17:36,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:17:36,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 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 311 [2024-10-12 20:17:36,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:36,876 INFO L225 Difference]: With dead ends: 23554 [2024-10-12 20:17:36,877 INFO L226 Difference]: Without dead ends: 15718 [2024-10-12 20:17:36,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:36,890 INFO L432 NwaCegarLoop]: 2236 mSDtfsCounter, 1116 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:36,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 3352 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:17:36,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15718 states. [2024-10-12 20:17:37,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15718 to 7892. [2024-10-12 20:17:37,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7892 states, 7891 states have (on average 1.5250285134963883) internal successors, (12034), 7891 states have internal predecessors, (12034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:37,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7892 states to 7892 states and 12034 transitions. [2024-10-12 20:17:37,199 INFO L78 Accepts]: Start accepts. Automaton has 7892 states and 12034 transitions. Word has length 311 [2024-10-12 20:17:37,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:37,200 INFO L471 AbstractCegarLoop]: Abstraction has 7892 states and 12034 transitions. [2024-10-12 20:17:37,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:37,200 INFO L276 IsEmpty]: Start isEmpty. Operand 7892 states and 12034 transitions. [2024-10-12 20:17:37,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-10-12 20:17:37,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:37,215 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:37,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 20:17:37,215 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:37,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:37,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1787645672, now seen corresponding path program 1 times [2024-10-12 20:17:37,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:37,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371002312] [2024-10-12 20:17:37,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:37,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:37,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:37,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:37,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371002312] [2024-10-12 20:17:37,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371002312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:37,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:37,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:37,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613104589] [2024-10-12 20:17:37,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:37,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:37,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:37,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:37,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:37,399 INFO L87 Difference]: Start difference. First operand 7892 states and 12034 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:37,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:37,513 INFO L93 Difference]: Finished difference Result 15747 states and 24002 transitions. [2024-10-12 20:17:37,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:17:37,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 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 312 [2024-10-12 20:17:37,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:37,537 INFO L225 Difference]: With dead ends: 15747 [2024-10-12 20:17:37,538 INFO L226 Difference]: Without dead ends: 7910 [2024-10-12 20:17:37,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:37,553 INFO L432 NwaCegarLoop]: 1138 mSDtfsCounter, 5 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:37,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2262 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:17:37,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7910 states. [2024-10-12 20:17:37,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7910 to 7910. [2024-10-12 20:17:37,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7910 states, 7909 states have (on average 1.524212921987609) internal successors, (12055), 7909 states have internal predecessors, (12055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:37,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7910 states to 7910 states and 12055 transitions. [2024-10-12 20:17:37,749 INFO L78 Accepts]: Start accepts. Automaton has 7910 states and 12055 transitions. Word has length 312 [2024-10-12 20:17:37,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:37,750 INFO L471 AbstractCegarLoop]: Abstraction has 7910 states and 12055 transitions. [2024-10-12 20:17:37,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:37,751 INFO L276 IsEmpty]: Start isEmpty. Operand 7910 states and 12055 transitions. [2024-10-12 20:17:37,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-10-12 20:17:37,764 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:37,764 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:37,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 20:17:37,765 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:37,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:37,766 INFO L85 PathProgramCache]: Analyzing trace with hash -654259625, now seen corresponding path program 1 times [2024-10-12 20:17:37,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:37,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33327501] [2024-10-12 20:17:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:37,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:37,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:37,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:37,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33327501] [2024-10-12 20:17:37,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33327501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:37,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:37,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:37,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599229912] [2024-10-12 20:17:37,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:37,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:37,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:37,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:37,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:37,964 INFO L87 Difference]: Start difference. First operand 7910 states and 12055 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:38,150 INFO L93 Difference]: Finished difference Result 23113 states and 35136 transitions. [2024-10-12 20:17:38,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:17:38,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 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 313 [2024-10-12 20:17:38,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:38,179 INFO L225 Difference]: With dead ends: 23113 [2024-10-12 20:17:38,180 INFO L226 Difference]: Without dead ends: 15443 [2024-10-12 20:17:38,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:38,194 INFO L432 NwaCegarLoop]: 2196 mSDtfsCounter, 987 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:38,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 3270 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:17:38,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15443 states. [2024-10-12 20:17:38,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15443 to 15441. [2024-10-12 20:17:38,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15441 states, 15440 states have (on average 1.5139248704663213) internal successors, (23375), 15440 states have internal predecessors, (23375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:38,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15441 states to 15441 states and 23375 transitions. [2024-10-12 20:17:38,556 INFO L78 Accepts]: Start accepts. Automaton has 15441 states and 23375 transitions. Word has length 313 [2024-10-12 20:17:38,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:38,557 INFO L471 AbstractCegarLoop]: Abstraction has 15441 states and 23375 transitions. [2024-10-12 20:17:38,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:38,558 INFO L276 IsEmpty]: Start isEmpty. Operand 15441 states and 23375 transitions. [2024-10-12 20:17:38,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-10-12 20:17:38,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:38,580 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:38,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:17:38,581 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:38,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:38,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1626143092, now seen corresponding path program 1 times [2024-10-12 20:17:38,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:38,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976468824] [2024-10-12 20:17:38,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:38,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:39,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:39,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976468824] [2024-10-12 20:17:39,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976468824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:39,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:39,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:17:39,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428249818] [2024-10-12 20:17:39,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:39,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:17:39,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:39,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:17:39,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:17:39,770 INFO L87 Difference]: Start difference. First operand 15441 states and 23375 transitions. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:39,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:39,999 INFO L93 Difference]: Finished difference Result 45392 states and 68501 transitions. [2024-10-12 20:17:40,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:17:40,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 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 313 [2024-10-12 20:17:40,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:40,056 INFO L225 Difference]: With dead ends: 45392 [2024-10-12 20:17:40,057 INFO L226 Difference]: Without dead ends: 30486 [2024-10-12 20:17:40,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:17:40,085 INFO L432 NwaCegarLoop]: 1675 mSDtfsCounter, 1085 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 4467 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:40,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 4467 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:17:40,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30486 states. [2024-10-12 20:17:40,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30486 to 15676. [2024-10-12 20:17:40,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15676 states, 15675 states have (on average 1.515980861244019) internal successors, (23763), 15675 states have internal predecessors, (23763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15676 states to 15676 states and 23763 transitions. [2024-10-12 20:17:40,603 INFO L78 Accepts]: Start accepts. Automaton has 15676 states and 23763 transitions. Word has length 313 [2024-10-12 20:17:40,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:40,603 INFO L471 AbstractCegarLoop]: Abstraction has 15676 states and 23763 transitions. [2024-10-12 20:17:40,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:40,604 INFO L276 IsEmpty]: Start isEmpty. Operand 15676 states and 23763 transitions. [2024-10-12 20:17:40,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-10-12 20:17:40,627 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:40,627 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:40,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 20:17:40,628 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:40,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:40,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1180560225, now seen corresponding path program 1 times [2024-10-12 20:17:40,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:40,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485710514] [2024-10-12 20:17:40,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:40,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:40,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:40,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:40,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485710514] [2024-10-12 20:17:40,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485710514] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:40,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:40,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:40,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560125547] [2024-10-12 20:17:40,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:40,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:40,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:40,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:40,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:40,792 INFO L87 Difference]: Start difference. First operand 15676 states and 23763 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:41,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:41,076 INFO L93 Difference]: Finished difference Result 45468 states and 68580 transitions. [2024-10-12 20:17:41,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:17:41,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 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 315 [2024-10-12 20:17:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:41,137 INFO L225 Difference]: With dead ends: 45468 [2024-10-12 20:17:41,137 INFO L226 Difference]: Without dead ends: 30590 [2024-10-12 20:17:41,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:41,165 INFO L432 NwaCegarLoop]: 2104 mSDtfsCounter, 984 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:41,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 3219 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:17:41,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30590 states. [2024-10-12 20:17:41,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30590 to 15780. [2024-10-12 20:17:41,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15780 states, 15779 states have (on average 1.5150516509284493) internal successors, (23906), 15779 states have internal predecessors, (23906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:41,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15780 states to 15780 states and 23906 transitions. [2024-10-12 20:17:41,611 INFO L78 Accepts]: Start accepts. Automaton has 15780 states and 23906 transitions. Word has length 315 [2024-10-12 20:17:41,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:41,611 INFO L471 AbstractCegarLoop]: Abstraction has 15780 states and 23906 transitions. [2024-10-12 20:17:41,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:41,612 INFO L276 IsEmpty]: Start isEmpty. Operand 15780 states and 23906 transitions. [2024-10-12 20:17:41,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-10-12 20:17:41,641 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:41,642 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:41,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 20:17:41,642 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:41,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:41,643 INFO L85 PathProgramCache]: Analyzing trace with hash 961586800, now seen corresponding path program 1 times [2024-10-12 20:17:41,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:41,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529430106] [2024-10-12 20:17:41,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:41,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:41,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:41,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529430106] [2024-10-12 20:17:41,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529430106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:41,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:41,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:41,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508676869] [2024-10-12 20:17:41,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:41,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:41,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:41,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:41,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:41,843 INFO L87 Difference]: Start difference. First operand 15780 states and 23906 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:41,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:41,974 INFO L93 Difference]: Finished difference Result 30790 states and 46477 transitions. [2024-10-12 20:17:41,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:17:41,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 316 [2024-10-12 20:17:41,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:42,007 INFO L225 Difference]: With dead ends: 30790 [2024-10-12 20:17:42,008 INFO L226 Difference]: Without dead ends: 15905 [2024-10-12 20:17:42,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:42,031 INFO L432 NwaCegarLoop]: 1138 mSDtfsCounter, 5 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:42,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2261 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:17:42,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15905 states. [2024-10-12 20:17:42,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15905 to 15905. [2024-10-12 20:17:42,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15905 states, 15904 states have (on average 1.5123239436619718) internal successors, (24052), 15904 states have internal predecessors, (24052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:42,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15905 states to 15905 states and 24052 transitions. [2024-10-12 20:17:42,450 INFO L78 Accepts]: Start accepts. Automaton has 15905 states and 24052 transitions. Word has length 316 [2024-10-12 20:17:42,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:42,450 INFO L471 AbstractCegarLoop]: Abstraction has 15905 states and 24052 transitions. [2024-10-12 20:17:42,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:42,451 INFO L276 IsEmpty]: Start isEmpty. Operand 15905 states and 24052 transitions. [2024-10-12 20:17:42,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-10-12 20:17:42,480 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:42,480 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:42,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 20:17:42,481 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:42,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:42,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1853566292, now seen corresponding path program 1 times [2024-10-12 20:17:42,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:42,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893543291] [2024-10-12 20:17:42,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:42,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:43,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:43,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:43,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893543291] [2024-10-12 20:17:43,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893543291] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:43,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:43,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:17:43,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791900409] [2024-10-12 20:17:43,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:43,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:17:43,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:43,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:17:43,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:17:43,354 INFO L87 Difference]: Start difference. First operand 15905 states and 24052 transitions. Second operand has 5 states, 5 states have (on average 63.4) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:43,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:43,822 INFO L93 Difference]: Finished difference Result 77601 states and 117108 transitions. [2024-10-12 20:17:43,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:17:43,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 63.4) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 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 317 [2024-10-12 20:17:43,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:43,944 INFO L225 Difference]: With dead ends: 77601 [2024-10-12 20:17:43,945 INFO L226 Difference]: Without dead ends: 61763 [2024-10-12 20:17:43,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:17:43,979 INFO L432 NwaCegarLoop]: 1867 mSDtfsCounter, 4487 mSDsluCounter, 2904 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4487 SdHoareTripleChecker+Valid, 4771 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:43,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4487 Valid, 4771 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:17:44,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61763 states. [2024-10-12 20:17:44,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61763 to 30934. [2024-10-12 20:17:44,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30934 states, 30933 states have (on average 1.5001131477709888) internal successors, (46403), 30933 states have internal predecessors, (46403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30934 states to 30934 states and 46403 transitions. [2024-10-12 20:17:44,989 INFO L78 Accepts]: Start accepts. Automaton has 30934 states and 46403 transitions. Word has length 317 [2024-10-12 20:17:44,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:44,990 INFO L471 AbstractCegarLoop]: Abstraction has 30934 states and 46403 transitions. [2024-10-12 20:17:44,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.4) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 30934 states and 46403 transitions. [2024-10-12 20:17:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-10-12 20:17:45,015 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:45,015 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:45,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 20:17:45,015 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:45,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:45,016 INFO L85 PathProgramCache]: Analyzing trace with hash -52316655, now seen corresponding path program 1 times [2024-10-12 20:17:45,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:45,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775583683] [2024-10-12 20:17:45,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:45,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:45,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:45,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775583683] [2024-10-12 20:17:45,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775583683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:45,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:45,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:17:45,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494167895] [2024-10-12 20:17:45,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:45,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:17:45,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:45,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:17:45,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:17:45,903 INFO L87 Difference]: Start difference. First operand 30934 states and 46403 transitions. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:46,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:46,168 INFO L93 Difference]: Finished difference Result 90937 states and 136156 transitions. [2024-10-12 20:17:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:17:46,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 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 319 [2024-10-12 20:17:46,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:46,265 INFO L225 Difference]: With dead ends: 90937 [2024-10-12 20:17:46,266 INFO L226 Difference]: Without dead ends: 61285 [2024-10-12 20:17:46,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:17:46,315 INFO L432 NwaCegarLoop]: 2225 mSDtfsCounter, 1076 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 5567 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:46,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 5567 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:17:46,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61285 states. [2024-10-12 20:17:47,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61285 to 31703. [2024-10-12 20:17:47,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31703 states, 31702 states have (on average 1.5050154564380795) internal successors, (47712), 31702 states have internal predecessors, (47712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:47,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31703 states to 31703 states and 47712 transitions. [2024-10-12 20:17:47,307 INFO L78 Accepts]: Start accepts. Automaton has 31703 states and 47712 transitions. Word has length 319 [2024-10-12 20:17:47,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:47,308 INFO L471 AbstractCegarLoop]: Abstraction has 31703 states and 47712 transitions. [2024-10-12 20:17:47,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:47,308 INFO L276 IsEmpty]: Start isEmpty. Operand 31703 states and 47712 transitions. [2024-10-12 20:17:47,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-10-12 20:17:47,334 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:47,335 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:47,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 20:17:47,335 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:47,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:47,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1086006732, now seen corresponding path program 1 times [2024-10-12 20:17:47,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:47,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066517638] [2024-10-12 20:17:47,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:47,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:47,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:47,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066517638] [2024-10-12 20:17:47,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066517638] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:47,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:47,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:47,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69888405] [2024-10-12 20:17:47,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:47,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:47,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:47,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:47,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:47,525 INFO L87 Difference]: Start difference. First operand 31703 states and 47712 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:48,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:48,019 INFO L93 Difference]: Finished difference Result 91765 states and 137523 transitions. [2024-10-12 20:17:48,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:17:48,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 319 [2024-10-12 20:17:48,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:48,115 INFO L225 Difference]: With dead ends: 91765 [2024-10-12 20:17:48,116 INFO L226 Difference]: Without dead ends: 61523 [2024-10-12 20:17:48,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:48,161 INFO L432 NwaCegarLoop]: 2182 mSDtfsCounter, 970 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:48,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 3256 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:17:48,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61523 states. [2024-10-12 20:17:49,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61523 to 61521. [2024-10-12 20:17:49,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61521 states, 61520 states have (on average 1.4920513654096228) internal successors, (91791), 61520 states have internal predecessors, (91791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:49,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61521 states to 61521 states and 91791 transitions. [2024-10-12 20:17:49,206 INFO L78 Accepts]: Start accepts. Automaton has 61521 states and 91791 transitions. Word has length 319 [2024-10-12 20:17:49,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:49,207 INFO L471 AbstractCegarLoop]: Abstraction has 61521 states and 91791 transitions. [2024-10-12 20:17:49,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:49,207 INFO L276 IsEmpty]: Start isEmpty. Operand 61521 states and 91791 transitions. [2024-10-12 20:17:49,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-10-12 20:17:49,277 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:49,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:49,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 20:17:49,278 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:49,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:49,279 INFO L85 PathProgramCache]: Analyzing trace with hash -830739022, now seen corresponding path program 1 times [2024-10-12 20:17:49,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:49,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484498955] [2024-10-12 20:17:49,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:49,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:50,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:50,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:50,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484498955] [2024-10-12 20:17:50,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484498955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:50,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:50,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:17:50,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106145582] [2024-10-12 20:17:50,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:50,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:17:50,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:50,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:17:50,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:17:50,498 INFO L87 Difference]: Start difference. First operand 61521 states and 91791 transitions. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:51,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:51,058 INFO L93 Difference]: Finished difference Result 110513 states and 164257 transitions. [2024-10-12 20:17:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:17:51,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 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 321 [2024-10-12 20:17:51,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:51,135 INFO L225 Difference]: With dead ends: 110513 [2024-10-12 20:17:51,135 INFO L226 Difference]: Without dead ends: 52597 [2024-10-12 20:17:51,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:17:51,178 INFO L432 NwaCegarLoop]: 1265 mSDtfsCounter, 96 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:51,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 3652 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:17:51,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52597 states. [2024-10-12 20:17:51,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52597 to 52287. [2024-10-12 20:17:51,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52287 states, 52286 states have (on average 1.491087480396282) internal successors, (77963), 52286 states have internal predecessors, (77963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:51,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52287 states to 52287 states and 77963 transitions. [2024-10-12 20:17:51,852 INFO L78 Accepts]: Start accepts. Automaton has 52287 states and 77963 transitions. Word has length 321 [2024-10-12 20:17:51,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:51,852 INFO L471 AbstractCegarLoop]: Abstraction has 52287 states and 77963 transitions. [2024-10-12 20:17:51,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:51,853 INFO L276 IsEmpty]: Start isEmpty. Operand 52287 states and 77963 transitions. [2024-10-12 20:17:51,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-10-12 20:17:51,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:51,890 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:51,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 20:17:51,890 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:51,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:51,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1665714209, now seen corresponding path program 1 times [2024-10-12 20:17:51,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:51,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474477833] [2024-10-12 20:17:51,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:51,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:52,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:52,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:52,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474477833] [2024-10-12 20:17:52,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474477833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:52,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:52,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:52,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191699584] [2024-10-12 20:17:52,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:52,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:52,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:52,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:52,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:52,077 INFO L87 Difference]: Start difference. First operand 52287 states and 77963 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:52,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:52,923 INFO L93 Difference]: Finished difference Result 145348 states and 215353 transitions. [2024-10-12 20:17:52,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:17:52,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 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 323 [2024-10-12 20:17:52,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:53,066 INFO L225 Difference]: With dead ends: 145348 [2024-10-12 20:17:53,066 INFO L226 Difference]: Without dead ends: 96152 [2024-10-12 20:17:53,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:53,137 INFO L432 NwaCegarLoop]: 2127 mSDtfsCounter, 981 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:53,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 3199 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:17:53,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96152 states. [2024-10-12 20:17:54,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96152 to 96150. [2024-10-12 20:17:54,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96150 states, 96149 states have (on average 1.474284703949079) internal successors, (141751), 96149 states have internal predecessors, (141751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:55,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96150 states to 96150 states and 141751 transitions. [2024-10-12 20:17:55,095 INFO L78 Accepts]: Start accepts. Automaton has 96150 states and 141751 transitions. Word has length 323 [2024-10-12 20:17:55,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:55,096 INFO L471 AbstractCegarLoop]: Abstraction has 96150 states and 141751 transitions. [2024-10-12 20:17:55,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:55,096 INFO L276 IsEmpty]: Start isEmpty. Operand 96150 states and 141751 transitions. [2024-10-12 20:17:55,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-10-12 20:17:55,157 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:55,157 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:55,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 20:17:55,157 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:55,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:55,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1366428883, now seen corresponding path program 1 times [2024-10-12 20:17:55,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:55,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470768623] [2024-10-12 20:17:55,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:55,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:55,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:55,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:55,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470768623] [2024-10-12 20:17:55,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470768623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:55,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:55,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:55,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302973155] [2024-10-12 20:17:55,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:55,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:55,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:55,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:55,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:55,303 INFO L87 Difference]: Start difference. First operand 96150 states and 141751 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:56,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:17:56,224 INFO L93 Difference]: Finished difference Result 272315 states and 400297 transitions. [2024-10-12 20:17:56,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:17:56,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 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 328 [2024-10-12 20:17:56,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:17:56,423 INFO L225 Difference]: With dead ends: 272315 [2024-10-12 20:17:56,423 INFO L226 Difference]: Without dead ends: 184195 [2024-10-12 20:17:56,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:56,484 INFO L432 NwaCegarLoop]: 1126 mSDtfsCounter, 977 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:17:56,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 2245 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:17:56,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184195 states. [2024-10-12 20:17:58,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184195 to 96631. [2024-10-12 20:17:58,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96631 states, 96630 states have (on average 1.4731346372762082) internal successors, (142349), 96630 states have internal predecessors, (142349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:58,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96631 states to 96631 states and 142349 transitions. [2024-10-12 20:17:58,984 INFO L78 Accepts]: Start accepts. Automaton has 96631 states and 142349 transitions. Word has length 328 [2024-10-12 20:17:58,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:17:58,984 INFO L471 AbstractCegarLoop]: Abstraction has 96631 states and 142349 transitions. [2024-10-12 20:17:58,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:17:58,985 INFO L276 IsEmpty]: Start isEmpty. Operand 96631 states and 142349 transitions. [2024-10-12 20:17:59,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-10-12 20:17:59,060 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:17:59,061 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:17:59,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 20:17:59,061 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:17:59,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:17:59,062 INFO L85 PathProgramCache]: Analyzing trace with hash -431312780, now seen corresponding path program 1 times [2024-10-12 20:17:59,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:17:59,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466769589] [2024-10-12 20:17:59,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:17:59,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:17:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:17:59,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:17:59,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:17:59,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466769589] [2024-10-12 20:17:59,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466769589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:17:59,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:17:59,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:17:59,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868088772] [2024-10-12 20:17:59,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:17:59,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:17:59,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:17:59,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:17:59,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:17:59,706 INFO L87 Difference]: Start difference. First operand 96631 states and 142349 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:00,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:18:00,671 INFO L93 Difference]: Finished difference Result 258710 states and 380703 transitions. [2024-10-12 20:18:00,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:18:00,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 329 [2024-10-12 20:18:00,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:18:00,876 INFO L225 Difference]: With dead ends: 258710 [2024-10-12 20:18:00,876 INFO L226 Difference]: Without dead ends: 176802 [2024-10-12 20:18:00,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:18:00,970 INFO L432 NwaCegarLoop]: 1045 mSDtfsCounter, 689 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:18:00,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 1896 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:18:01,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176802 states. [2024-10-12 20:18:03,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176802 to 176800. [2024-10-12 20:18:03,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176800 states, 176799 states have (on average 1.4630965107268705) internal successors, (258674), 176799 states have internal predecessors, (258674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:04,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176800 states to 176800 states and 258674 transitions. [2024-10-12 20:18:04,697 INFO L78 Accepts]: Start accepts. Automaton has 176800 states and 258674 transitions. Word has length 329 [2024-10-12 20:18:04,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:18:04,697 INFO L471 AbstractCegarLoop]: Abstraction has 176800 states and 258674 transitions. [2024-10-12 20:18:04,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:04,698 INFO L276 IsEmpty]: Start isEmpty. Operand 176800 states and 258674 transitions. [2024-10-12 20:18:04,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-10-12 20:18:04,824 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:18:04,824 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:18:04,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 20:18:04,825 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:18:04,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:18:04,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1517390678, now seen corresponding path program 1 times [2024-10-12 20:18:04,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:18:04,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312556719] [2024-10-12 20:18:04,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:18:04,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:18:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:18:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:18:05,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:18:05,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312556719] [2024-10-12 20:18:05,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312556719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:18:05,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:18:05,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:18:05,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313899961] [2024-10-12 20:18:05,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:18:05,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:18:05,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:18:05,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:18:05,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:18:05,149 INFO L87 Difference]: Start difference. First operand 176800 states and 258674 transitions. Second operand has 5 states, 5 states have (on average 65.8) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:06,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:18:06,752 INFO L93 Difference]: Finished difference Result 234314 states and 345696 transitions. [2024-10-12 20:18:06,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:18:06,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 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 329 [2024-10-12 20:18:06,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:18:06,872 INFO L225 Difference]: With dead ends: 234314 [2024-10-12 20:18:06,872 INFO L226 Difference]: Without dead ends: 96631 [2024-10-12 20:18:06,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:18:06,923 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 2678 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2678 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:18:06,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2678 Valid, 1404 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:18:06,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96631 states. [2024-10-12 20:18:08,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96631 to 96631. [2024-10-12 20:18:08,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96631 states, 96630 states have (on average 1.4584187105453792) internal successors, (140927), 96630 states have internal predecessors, (140927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96631 states to 96631 states and 140927 transitions. [2024-10-12 20:18:08,413 INFO L78 Accepts]: Start accepts. Automaton has 96631 states and 140927 transitions. Word has length 329 [2024-10-12 20:18:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:18:08,413 INFO L471 AbstractCegarLoop]: Abstraction has 96631 states and 140927 transitions. [2024-10-12 20:18:08,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:08,414 INFO L276 IsEmpty]: Start isEmpty. Operand 96631 states and 140927 transitions. [2024-10-12 20:18:08,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-10-12 20:18:08,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:18:08,478 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:18:08,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 20:18:08,478 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:18:08,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:18:08,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1395672231, now seen corresponding path program 1 times [2024-10-12 20:18:08,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:18:08,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526390467] [2024-10-12 20:18:08,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:18:08,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:18:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:18:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:18:10,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:18:10,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526390467] [2024-10-12 20:18:10,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526390467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:18:10,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:18:10,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 20:18:10,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336087799] [2024-10-12 20:18:10,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:18:10,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:18:10,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:18:10,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:18:10,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:18:10,302 INFO L87 Difference]: Start difference. First operand 96631 states and 140927 transitions. Second operand has 9 states, 9 states have (on average 36.55555555555556) internal successors, (329), 9 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:11,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:18:11,563 INFO L93 Difference]: Finished difference Result 208641 states and 308691 transitions. [2024-10-12 20:18:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:18:11,564 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 36.55555555555556) internal successors, (329), 9 states have internal predecessors, (329), 0 states have call successors, (0), 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 329 [2024-10-12 20:18:11,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:18:11,756 INFO L225 Difference]: With dead ends: 208641 [2024-10-12 20:18:11,756 INFO L226 Difference]: Without dead ends: 177133 [2024-10-12 20:18:11,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:18:11,797 INFO L432 NwaCegarLoop]: 1052 mSDtfsCounter, 1854 mSDsluCounter, 5468 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 6520 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:18:11,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 6520 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:18:11,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177133 states. [2024-10-12 20:18:13,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177133 to 177131. [2024-10-12 20:18:13,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177131 states, 177130 states have (on average 1.4558290521086208) internal successors, (257871), 177130 states have internal predecessors, (257871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:14,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177131 states to 177131 states and 257871 transitions. [2024-10-12 20:18:14,199 INFO L78 Accepts]: Start accepts. Automaton has 177131 states and 257871 transitions. Word has length 329 [2024-10-12 20:18:14,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:18:14,199 INFO L471 AbstractCegarLoop]: Abstraction has 177131 states and 257871 transitions. [2024-10-12 20:18:14,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 36.55555555555556) internal successors, (329), 9 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:14,200 INFO L276 IsEmpty]: Start isEmpty. Operand 177131 states and 257871 transitions. [2024-10-12 20:18:14,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-10-12 20:18:14,324 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:18:14,324 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:18:14,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 20:18:14,324 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:18:14,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:18:14,325 INFO L85 PathProgramCache]: Analyzing trace with hash -390888566, now seen corresponding path program 1 times [2024-10-12 20:18:14,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:18:14,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937685691] [2024-10-12 20:18:14,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:18:14,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:18:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:18:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:18:16,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:18:16,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937685691] [2024-10-12 20:18:16,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937685691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:18:16,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:18:16,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:18:16,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065593831] [2024-10-12 20:18:16,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:18:16,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:18:16,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:18:16,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:18:16,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:18:16,188 INFO L87 Difference]: Start difference. First operand 177131 states and 257871 transitions. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:16,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:18:16,903 INFO L93 Difference]: Finished difference Result 338434 states and 491898 transitions. [2024-10-12 20:18:16,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:18:16,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 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 329 [2024-10-12 20:18:16,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:18:17,835 INFO L225 Difference]: With dead ends: 338434 [2024-10-12 20:18:17,835 INFO L226 Difference]: Without dead ends: 166610 [2024-10-12 20:18:17,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:18:17,927 INFO L432 NwaCegarLoop]: 1238 mSDtfsCounter, 87 mSDsluCounter, 2346 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:18:17,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 3584 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:18:18,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166610 states. [2024-10-12 20:18:19,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166610 to 166283. [2024-10-12 20:18:19,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166283 states, 166282 states have (on average 1.4551244271779267) internal successors, (241961), 166282 states have internal predecessors, (241961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:19,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166283 states to 166283 states and 241961 transitions. [2024-10-12 20:18:19,874 INFO L78 Accepts]: Start accepts. Automaton has 166283 states and 241961 transitions. Word has length 329 [2024-10-12 20:18:19,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:18:19,874 INFO L471 AbstractCegarLoop]: Abstraction has 166283 states and 241961 transitions. [2024-10-12 20:18:19,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:19,874 INFO L276 IsEmpty]: Start isEmpty. Operand 166283 states and 241961 transitions. [2024-10-12 20:18:20,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-10-12 20:18:20,720 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:18:20,720 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:18:20,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 20:18:20,721 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:18:20,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:18:20,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1666306115, now seen corresponding path program 1 times [2024-10-12 20:18:20,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:18:20,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736546115] [2024-10-12 20:18:20,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:18:20,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:18:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:18:21,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:18:21,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:18:21,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736546115] [2024-10-12 20:18:21,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736546115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:18:21,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:18:21,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:18:21,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092039277] [2024-10-12 20:18:21,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:18:21,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:18:21,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:18:21,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:18:21,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:18:21,272 INFO L87 Difference]: Start difference. First operand 166283 states and 241961 transitions. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:18:22,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:18:22,105 INFO L93 Difference]: Finished difference Result 282493 states and 431022 transitions. [2024-10-12 20:18:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:18:22,105 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 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 333 [2024-10-12 20:18:22,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:18:22,459 INFO L225 Difference]: With dead ends: 282493 [2024-10-12 20:18:22,460 INFO L226 Difference]: Without dead ends: 259347 [2024-10-12 20:18:23,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:18:23,279 INFO L432 NwaCegarLoop]: 1281 mSDtfsCounter, 3301 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3301 SdHoareTripleChecker+Valid, 3751 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:18:23,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3301 Valid, 3751 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:18:23,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259347 states.