./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 205f0e0aff0d53187144e7eaaf7c9176a7ca6bc04dd0065235effeefd306421c --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:40:48,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:40:48,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:40:48,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:40:48,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:40:48,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:40:48,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:40:48,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:40:48,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:40:48,939 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:40:48,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:40:48,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:40:48,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:40:48,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:40:48,940 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:40:48,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:40:48,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:40:48,941 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:40:48,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:40:48,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:40:48,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:40:48,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:40:48,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:40:48,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:40:48,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:40:48,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:40:48,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:40:48,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:40:48,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:40:48,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:40:48,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:40:48,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:40:48,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:40:48,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:40:48,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:40:48,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:40:48,946 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:40:48,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:40:48,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:40:48,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:40:48,947 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:40:48,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:40:48,950 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 205f0e0aff0d53187144e7eaaf7c9176a7ca6bc04dd0065235effeefd306421c [2024-11-08 15:40:49,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:40:49,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:40:49,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:40:49,163 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:40:49,163 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:40:49,164 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c [2024-11-08 15:40:50,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:40:50,538 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:40:50,538 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c [2024-11-08 15:40:50,547 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/754a32962/ad677b238eef42b083d92ea1038f7628/FLAGceccf9a3a [2024-11-08 15:40:50,935 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/754a32962/ad677b238eef42b083d92ea1038f7628 [2024-11-08 15:40:50,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:40:50,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:40:50,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:40:50,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:40:50,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:40:50,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:40:50" (1/1) ... [2024-11-08 15:40:50,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7174174b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:50, skipping insertion in model container [2024-11-08 15:40:50,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:40:50" (1/1) ... [2024-11-08 15:40:50,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:40:51,203 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c[14511,14524] [2024-11-08 15:40:51,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:40:51,221 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:40:51,276 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c[14511,14524] [2024-11-08 15:40:51,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:40:51,298 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:40:51,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51 WrapperNode [2024-11-08 15:40:51,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:40:51,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:40:51,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:40:51,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:40:51,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,343 INFO L138 Inliner]: procedures = 23, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 496 [2024-11-08 15:40:51,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:40:51,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:40:51,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:40:51,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:40:51,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,360 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,377 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 15:40:51,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:40:51,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:40:51,405 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:40:51,405 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:40:51,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (1/1) ... [2024-11-08 15:40:51,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:40:51,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:40:51,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:40:51,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:40:51,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:40:51,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:40:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:40:51,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:40:51,587 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:40:51,590 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:40:52,146 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-08 15:40:52,147 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:40:52,162 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:40:52,162 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 15:40:52,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:40:52 BoogieIcfgContainer [2024-11-08 15:40:52,163 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:40:52,164 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:40:52,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:40:52,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:40:52,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:40:50" (1/3) ... [2024-11-08 15:40:52,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdab518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:40:52, skipping insertion in model container [2024-11-08 15:40:52,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:40:51" (2/3) ... [2024-11-08 15:40:52,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdab518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:40:52, skipping insertion in model container [2024-11-08 15:40:52,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:40:52" (3/3) ... [2024-11-08 15:40:52,168 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.4.ufo.UNBOUNDED.pals.c [2024-11-08 15:40:52,180 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:40:52,180 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:40:52,224 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:40:52,228 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;@71a66a22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:40:52,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:40:52,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 135 states have (on average 1.7703703703703704) internal successors, (239), 136 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:52,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 15:40:52,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:52,240 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] [2024-11-08 15:40:52,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:52,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:52,245 INFO L85 PathProgramCache]: Analyzing trace with hash 395135632, now seen corresponding path program 1 times [2024-11-08 15:40:52,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:52,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629919784] [2024-11-08 15:40:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:52,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:52,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:52,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629919784] [2024-11-08 15:40:52,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629919784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:52,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:52,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:40:52,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402424804] [2024-11-08 15:40:52,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:52,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:40:52,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:52,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:40:52,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:40:52,542 INFO L87 Difference]: Start difference. First operand has 137 states, 135 states have (on average 1.7703703703703704) internal successors, (239), 136 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:52,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:52,565 INFO L93 Difference]: Finished difference Result 211 states and 367 transitions. [2024-11-08 15:40:52,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:40:52,566 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-08 15:40:52,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:52,573 INFO L225 Difference]: With dead ends: 211 [2024-11-08 15:40:52,573 INFO L226 Difference]: Without dead ends: 133 [2024-11-08 15:40:52,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:40:52,578 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:52,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:40:52,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-08 15:40:52,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-08 15:40:52,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.7575757575757576) internal successors, (232), 132 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:52,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 232 transitions. [2024-11-08 15:40:52,606 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 232 transitions. Word has length 37 [2024-11-08 15:40:52,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:52,607 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 232 transitions. [2024-11-08 15:40:52,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:52,607 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 232 transitions. [2024-11-08 15:40:52,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 15:40:52,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:52,609 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] [2024-11-08 15:40:52,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:40:52,609 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:52,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:52,610 INFO L85 PathProgramCache]: Analyzing trace with hash -422512818, now seen corresponding path program 1 times [2024-11-08 15:40:52,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:52,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891687639] [2024-11-08 15:40:52,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:52,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:52,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:52,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891687639] [2024-11-08 15:40:52,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891687639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:52,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:52,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:40:52,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181425400] [2024-11-08 15:40:52,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:52,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:40:52,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:52,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:40:52,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:40:52,836 INFO L87 Difference]: Start difference. First operand 133 states and 232 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:52,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:52,921 INFO L93 Difference]: Finished difference Result 210 states and 360 transitions. [2024-11-08 15:40:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:40:52,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-11-08 15:40:52,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:52,924 INFO L225 Difference]: With dead ends: 210 [2024-11-08 15:40:52,924 INFO L226 Difference]: Without dead ends: 133 [2024-11-08 15:40:52,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:40:52,925 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:52,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 885 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:40:52,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-08 15:40:52,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-08 15:40:52,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.5303030303030303) internal successors, (202), 132 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:52,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 202 transitions. [2024-11-08 15:40:52,934 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 202 transitions. Word has length 37 [2024-11-08 15:40:52,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:52,936 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 202 transitions. [2024-11-08 15:40:52,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:52,936 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 202 transitions. [2024-11-08 15:40:52,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 15:40:52,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:52,937 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] [2024-11-08 15:40:52,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:40:52,937 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:52,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:52,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1398422292, now seen corresponding path program 1 times [2024-11-08 15:40:52,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:52,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992946969] [2024-11-08 15:40:52,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:52,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:53,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:53,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992946969] [2024-11-08 15:40:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992946969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:53,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:53,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:40:53,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546389668] [2024-11-08 15:40:53,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:53,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:40:53,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:40:53,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:53,065 INFO L87 Difference]: Start difference. First operand 133 states and 202 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:53,118 INFO L93 Difference]: Finished difference Result 265 states and 424 transitions. [2024-11-08 15:40:53,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:40:53,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-08 15:40:53,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:53,119 INFO L225 Difference]: With dead ends: 265 [2024-11-08 15:40:53,119 INFO L226 Difference]: Without dead ends: 192 [2024-11-08 15:40:53,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:53,121 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 97 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:53,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 344 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:40:53,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-08 15:40:53,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2024-11-08 15:40:53,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 1.553191489361702) internal successors, (292), 188 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 292 transitions. [2024-11-08 15:40:53,133 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 292 transitions. Word has length 66 [2024-11-08 15:40:53,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:53,134 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 292 transitions. [2024-11-08 15:40:53,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 292 transitions. [2024-11-08 15:40:53,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 15:40:53,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:53,138 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] [2024-11-08 15:40:53,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:40:53,138 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:53,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:53,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1852534978, now seen corresponding path program 1 times [2024-11-08 15:40:53,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:53,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088896538] [2024-11-08 15:40:53,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:53,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:53,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:53,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:53,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088896538] [2024-11-08 15:40:53,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088896538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:53,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:53,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:40:53,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503525468] [2024-11-08 15:40:53,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:53,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:40:53,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:53,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:40:53,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:53,232 INFO L87 Difference]: Start difference. First operand 189 states and 292 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:53,261 INFO L93 Difference]: Finished difference Result 431 states and 692 transitions. [2024-11-08 15:40:53,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:40:53,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-08 15:40:53,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:53,264 INFO L225 Difference]: With dead ends: 431 [2024-11-08 15:40:53,265 INFO L226 Difference]: Without dead ends: 302 [2024-11-08 15:40:53,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:53,268 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 99 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:53,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 365 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:40:53,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-11-08 15:40:53,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 298. [2024-11-08 15:40:53,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 1.5858585858585859) internal successors, (471), 297 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 471 transitions. [2024-11-08 15:40:53,290 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 471 transitions. Word has length 68 [2024-11-08 15:40:53,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:53,291 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 471 transitions. [2024-11-08 15:40:53,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,291 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 471 transitions. [2024-11-08 15:40:53,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 15:40:53,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:53,294 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:40:53,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:40:53,296 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:53,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:53,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1172652176, now seen corresponding path program 1 times [2024-11-08 15:40:53,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:53,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272665872] [2024-11-08 15:40:53,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:53,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:53,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:53,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272665872] [2024-11-08 15:40:53,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272665872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:53,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:53,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:40:53,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413595005] [2024-11-08 15:40:53,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:53,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:40:53,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:53,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:40:53,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:53,412 INFO L87 Difference]: Start difference. First operand 298 states and 471 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:53,437 INFO L93 Difference]: Finished difference Result 742 states and 1201 transitions. [2024-11-08 15:40:53,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:40:53,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-08 15:40:53,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:53,440 INFO L225 Difference]: With dead ends: 742 [2024-11-08 15:40:53,440 INFO L226 Difference]: Without dead ends: 504 [2024-11-08 15:40:53,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:53,443 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 93 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:53,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 366 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:40:53,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-08 15:40:53,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 498. [2024-11-08 15:40:53,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 497 states have (on average 1.5995975855130784) internal successors, (795), 497 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 795 transitions. [2024-11-08 15:40:53,464 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 795 transitions. Word has length 70 [2024-11-08 15:40:53,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:53,464 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 795 transitions. [2024-11-08 15:40:53,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,465 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 795 transitions. [2024-11-08 15:40:53,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 15:40:53,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:53,468 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] [2024-11-08 15:40:53,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:40:53,469 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:53,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:53,469 INFO L85 PathProgramCache]: Analyzing trace with hash 648029982, now seen corresponding path program 1 times [2024-11-08 15:40:53,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:53,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745786091] [2024-11-08 15:40:53,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:53,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:53,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:53,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745786091] [2024-11-08 15:40:53,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745786091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:53,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:53,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:40:53,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530634073] [2024-11-08 15:40:53,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:53,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:40:53,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:53,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:40:53,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:40:53,636 INFO L87 Difference]: Start difference. First operand 498 states and 795 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:53,773 INFO L93 Difference]: Finished difference Result 2494 states and 4085 transitions. [2024-11-08 15:40:53,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:40:53,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-08 15:40:53,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:53,782 INFO L225 Difference]: With dead ends: 2494 [2024-11-08 15:40:53,782 INFO L226 Difference]: Without dead ends: 2056 [2024-11-08 15:40:53,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:40:53,787 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 812 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:53,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1144 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:40:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2024-11-08 15:40:53,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 918. [2024-11-08 15:40:53,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 917 states have (on average 1.612868047982552) internal successors, (1479), 917 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1479 transitions. [2024-11-08 15:40:53,817 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1479 transitions. Word has length 72 [2024-11-08 15:40:53,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:53,818 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1479 transitions. [2024-11-08 15:40:53,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:53,818 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1479 transitions. [2024-11-08 15:40:53,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 15:40:53,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:53,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:40:53,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:40:53,819 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:53,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:53,820 INFO L85 PathProgramCache]: Analyzing trace with hash 986227649, now seen corresponding path program 1 times [2024-11-08 15:40:53,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:53,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953750348] [2024-11-08 15:40:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:53,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:53,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:53,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:53,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953750348] [2024-11-08 15:40:53,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953750348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:53,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:53,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:40:53,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974268679] [2024-11-08 15:40:53,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:53,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 15:40:53,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:53,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 15:40:53,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 15:40:53,964 INFO L87 Difference]: Start difference. First operand 918 states and 1479 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:54,052 INFO L93 Difference]: Finished difference Result 3318 states and 5402 transitions. [2024-11-08 15:40:54,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 15:40:54,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-08 15:40:54,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:54,059 INFO L225 Difference]: With dead ends: 3318 [2024-11-08 15:40:54,059 INFO L226 Difference]: Without dead ends: 2460 [2024-11-08 15:40:54,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:40:54,061 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 359 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:54,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 578 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:40:54,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2024-11-08 15:40:54,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 1680. [2024-11-08 15:40:54,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1679 states have (on average 1.614651578320429) internal successors, (2711), 1679 states have internal predecessors, (2711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2711 transitions. [2024-11-08 15:40:54,105 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2711 transitions. Word has length 73 [2024-11-08 15:40:54,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:54,105 INFO L471 AbstractCegarLoop]: Abstraction has 1680 states and 2711 transitions. [2024-11-08 15:40:54,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2711 transitions. [2024-11-08 15:40:54,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 15:40:54,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:54,107 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] [2024-11-08 15:40:54,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:40:54,107 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:54,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:54,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1245542219, now seen corresponding path program 1 times [2024-11-08 15:40:54,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:54,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43607203] [2024-11-08 15:40:54,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:54,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:54,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:54,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:54,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43607203] [2024-11-08 15:40:54,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43607203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:54,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:54,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:40:54,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374758866] [2024-11-08 15:40:54,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:54,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 15:40:54,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:54,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 15:40:54,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 15:40:54,175 INFO L87 Difference]: Start difference. First operand 1680 states and 2711 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:54,255 INFO L93 Difference]: Finished difference Result 4944 states and 8046 transitions. [2024-11-08 15:40:54,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 15:40:54,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-08 15:40:54,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:54,264 INFO L225 Difference]: With dead ends: 4944 [2024-11-08 15:40:54,264 INFO L226 Difference]: Without dead ends: 3324 [2024-11-08 15:40:54,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:40:54,267 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 357 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:54,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 652 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:40:54,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3324 states. [2024-11-08 15:40:54,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3324 to 2486. [2024-11-08 15:40:54,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2485 states have (on average 1.6116700201207244) internal successors, (4005), 2485 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 4005 transitions. [2024-11-08 15:40:54,338 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 4005 transitions. Word has length 74 [2024-11-08 15:40:54,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:54,338 INFO L471 AbstractCegarLoop]: Abstraction has 2486 states and 4005 transitions. [2024-11-08 15:40:54,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 4005 transitions. [2024-11-08 15:40:54,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-08 15:40:54,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:54,339 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] [2024-11-08 15:40:54,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:40:54,339 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:54,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:54,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1541927048, now seen corresponding path program 1 times [2024-11-08 15:40:54,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:54,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549271792] [2024-11-08 15:40:54,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:54,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:54,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:54,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:54,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549271792] [2024-11-08 15:40:54,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549271792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:54,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:54,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:40:54,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703548771] [2024-11-08 15:40:54,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:54,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 15:40:54,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:54,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 15:40:54,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 15:40:54,415 INFO L87 Difference]: Start difference. First operand 2486 states and 4005 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:54,505 INFO L93 Difference]: Finished difference Result 7296 states and 11834 transitions. [2024-11-08 15:40:54,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 15:40:54,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-08 15:40:54,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:54,520 INFO L225 Difference]: With dead ends: 7296 [2024-11-08 15:40:54,520 INFO L226 Difference]: Without dead ends: 4870 [2024-11-08 15:40:54,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:40:54,524 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 355 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:54,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 661 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:40:54,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2024-11-08 15:40:54,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 3656. [2024-11-08 15:40:54,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 3655 states have (on average 1.6073871409028728) internal successors, (5875), 3655 states have internal predecessors, (5875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 5875 transitions. [2024-11-08 15:40:54,590 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 5875 transitions. Word has length 75 [2024-11-08 15:40:54,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:54,590 INFO L471 AbstractCegarLoop]: Abstraction has 3656 states and 5875 transitions. [2024-11-08 15:40:54,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 5875 transitions. [2024-11-08 15:40:54,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 15:40:54,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:54,591 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] [2024-11-08 15:40:54,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:40:54,592 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:54,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash 268884983, now seen corresponding path program 1 times [2024-11-08 15:40:54,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:54,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909776908] [2024-11-08 15:40:54,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:54,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:54,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:54,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:54,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909776908] [2024-11-08 15:40:54,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909776908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:54,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:54,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:40:54,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36813224] [2024-11-08 15:40:54,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:54,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:40:54,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:54,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:40:54,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:54,666 INFO L87 Difference]: Start difference. First operand 3656 states and 5875 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:54,744 INFO L93 Difference]: Finished difference Result 8284 states and 13306 transitions. [2024-11-08 15:40:54,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:40:54,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-08 15:40:54,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:54,759 INFO L225 Difference]: With dead ends: 8284 [2024-11-08 15:40:54,759 INFO L226 Difference]: Without dead ends: 5684 [2024-11-08 15:40:54,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:54,764 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 92 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:54,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 413 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:40:54,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5684 states. [2024-11-08 15:40:54,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5684 to 5682. [2024-11-08 15:40:54,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 5681 states have (on average 1.588804787889456) internal successors, (9026), 5681 states have internal predecessors, (9026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 9026 transitions. [2024-11-08 15:40:54,862 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 9026 transitions. Word has length 76 [2024-11-08 15:40:54,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:54,863 INFO L471 AbstractCegarLoop]: Abstraction has 5682 states and 9026 transitions. [2024-11-08 15:40:54,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:54,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 9026 transitions. [2024-11-08 15:40:54,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 15:40:54,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:54,864 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] [2024-11-08 15:40:54,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 15:40:54,864 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:54,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:54,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1813417673, now seen corresponding path program 1 times [2024-11-08 15:40:54,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:54,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986272653] [2024-11-08 15:40:54,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:54,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:54,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:54,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986272653] [2024-11-08 15:40:54,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986272653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:54,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:54,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:40:54,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688935586] [2024-11-08 15:40:54,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:54,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:40:54,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:54,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:40:54,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:54,924 INFO L87 Difference]: Start difference. First operand 5682 states and 9026 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:55,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:55,046 INFO L93 Difference]: Finished difference Result 12456 states and 19800 transitions. [2024-11-08 15:40:55,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:40:55,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-08 15:40:55,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:55,073 INFO L225 Difference]: With dead ends: 12456 [2024-11-08 15:40:55,073 INFO L226 Difference]: Without dead ends: 8428 [2024-11-08 15:40:55,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:55,081 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 98 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:55,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 441 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:40:55,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8428 states. [2024-11-08 15:40:55,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8428 to 8426. [2024-11-08 15:40:55,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8426 states, 8425 states have (on average 1.5717507418397627) internal successors, (13242), 8425 states have internal predecessors, (13242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:55,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8426 states to 8426 states and 13242 transitions. [2024-11-08 15:40:55,230 INFO L78 Accepts]: Start accepts. Automaton has 8426 states and 13242 transitions. Word has length 76 [2024-11-08 15:40:55,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:55,231 INFO L471 AbstractCegarLoop]: Abstraction has 8426 states and 13242 transitions. [2024-11-08 15:40:55,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:55,231 INFO L276 IsEmpty]: Start isEmpty. Operand 8426 states and 13242 transitions. [2024-11-08 15:40:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-08 15:40:55,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:55,232 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] [2024-11-08 15:40:55,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:40:55,232 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:55,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:55,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1616320119, now seen corresponding path program 1 times [2024-11-08 15:40:55,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:55,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910785159] [2024-11-08 15:40:55,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:55,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:55,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:55,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910785159] [2024-11-08 15:40:55,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910785159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:55,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:55,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:40:55,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618573465] [2024-11-08 15:40:55,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:55,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:40:55,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:55,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:40:55,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:55,284 INFO L87 Difference]: Start difference. First operand 8426 states and 13242 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:55,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:55,437 INFO L93 Difference]: Finished difference Result 20215 states and 31930 transitions. [2024-11-08 15:40:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:40:55,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-08 15:40:55,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:55,456 INFO L225 Difference]: With dead ends: 20215 [2024-11-08 15:40:55,457 INFO L226 Difference]: Without dead ends: 11867 [2024-11-08 15:40:55,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:40:55,469 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 104 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:55,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 461 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:40:55,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11867 states. [2024-11-08 15:40:55,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11867 to 11865. [2024-11-08 15:40:55,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11865 states, 11864 states have (on average 1.5761968981793661) internal successors, (18700), 11864 states have internal predecessors, (18700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:55,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11865 states to 11865 states and 18700 transitions. [2024-11-08 15:40:55,720 INFO L78 Accepts]: Start accepts. Automaton has 11865 states and 18700 transitions. Word has length 76 [2024-11-08 15:40:55,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:55,720 INFO L471 AbstractCegarLoop]: Abstraction has 11865 states and 18700 transitions. [2024-11-08 15:40:55,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:55,721 INFO L276 IsEmpty]: Start isEmpty. Operand 11865 states and 18700 transitions. [2024-11-08 15:40:55,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 15:40:55,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:55,722 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] [2024-11-08 15:40:55,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:40:55,722 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:55,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:55,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2139270896, now seen corresponding path program 1 times [2024-11-08 15:40:55,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:55,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820324539] [2024-11-08 15:40:55,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:55,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:55,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:55,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820324539] [2024-11-08 15:40:55,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820324539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:55,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:55,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:40:55,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277717348] [2024-11-08 15:40:55,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:55,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:40:55,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:55,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:40:55,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:40:55,865 INFO L87 Difference]: Start difference. First operand 11865 states and 18700 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:56,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:56,019 INFO L93 Difference]: Finished difference Result 23654 states and 37297 transitions. [2024-11-08 15:40:56,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:40:56,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-08 15:40:56,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:56,037 INFO L225 Difference]: With dead ends: 23654 [2024-11-08 15:40:56,037 INFO L226 Difference]: Without dead ends: 11867 [2024-11-08 15:40:56,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:40:56,049 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 189 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:56,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 537 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:40:56,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11867 states. [2024-11-08 15:40:56,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11867 to 11865. [2024-11-08 15:40:56,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11865 states, 11864 states have (on average 1.563553607552259) internal successors, (18550), 11864 states have internal predecessors, (18550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:56,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11865 states to 11865 states and 18550 transitions. [2024-11-08 15:40:56,263 INFO L78 Accepts]: Start accepts. Automaton has 11865 states and 18550 transitions. Word has length 77 [2024-11-08 15:40:56,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:56,263 INFO L471 AbstractCegarLoop]: Abstraction has 11865 states and 18550 transitions. [2024-11-08 15:40:56,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:56,263 INFO L276 IsEmpty]: Start isEmpty. Operand 11865 states and 18550 transitions. [2024-11-08 15:40:56,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 15:40:56,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:56,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:40:56,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:40:56,264 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:56,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:56,265 INFO L85 PathProgramCache]: Analyzing trace with hash -297465128, now seen corresponding path program 1 times [2024-11-08 15:40:56,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:56,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875379813] [2024-11-08 15:40:56,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:56,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:56,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:56,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:56,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875379813] [2024-11-08 15:40:56,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875379813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:56,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:56,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:40:56,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395401478] [2024-11-08 15:40:56,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:56,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:40:56,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:56,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:40:56,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:40:56,433 INFO L87 Difference]: Start difference. First operand 11865 states and 18550 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:56,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:56,694 INFO L93 Difference]: Finished difference Result 34237 states and 53673 transitions. [2024-11-08 15:40:56,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:40:56,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-08 15:40:56,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:56,731 INFO L225 Difference]: With dead ends: 34237 [2024-11-08 15:40:56,731 INFO L226 Difference]: Without dead ends: 22450 [2024-11-08 15:40:56,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:40:56,744 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 93 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:56,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 715 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:40:56,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22450 states. [2024-11-08 15:40:57,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22450 to 22448. [2024-11-08 15:40:57,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22448 states, 22447 states have (on average 1.5508531206842786) internal successors, (34812), 22447 states have internal predecessors, (34812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:57,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22448 states to 22448 states and 34812 transitions. [2024-11-08 15:40:57,251 INFO L78 Accepts]: Start accepts. Automaton has 22448 states and 34812 transitions. Word has length 80 [2024-11-08 15:40:57,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:57,251 INFO L471 AbstractCegarLoop]: Abstraction has 22448 states and 34812 transitions. [2024-11-08 15:40:57,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:57,252 INFO L276 IsEmpty]: Start isEmpty. Operand 22448 states and 34812 transitions. [2024-11-08 15:40:57,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 15:40:57,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:57,252 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:40:57,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:40:57,253 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:57,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:57,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1060060007, now seen corresponding path program 1 times [2024-11-08 15:40:57,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:57,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234091117] [2024-11-08 15:40:57,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:57,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:57,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:57,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:57,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234091117] [2024-11-08 15:40:57,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234091117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:57,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:57,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:40:57,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162328781] [2024-11-08 15:40:57,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:57,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:40:57,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:57,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:40:57,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:40:57,493 INFO L87 Difference]: Start difference. First operand 22448 states and 34812 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:57,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:57,719 INFO L93 Difference]: Finished difference Result 23611 states and 36361 transitions. [2024-11-08 15:40:57,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:40:57,720 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-08 15:40:57,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:57,756 INFO L225 Difference]: With dead ends: 23611 [2024-11-08 15:40:57,756 INFO L226 Difference]: Without dead ends: 23609 [2024-11-08 15:40:57,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:40:57,765 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:57,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1354 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:40:57,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23609 states. [2024-11-08 15:40:58,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23609 to 23609. [2024-11-08 15:40:58,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23609 states, 23608 states have (on average 1.5233819044391732) internal successors, (35964), 23608 states have internal predecessors, (35964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23609 states to 23609 states and 35964 transitions. [2024-11-08 15:40:58,089 INFO L78 Accepts]: Start accepts. Automaton has 23609 states and 35964 transitions. Word has length 81 [2024-11-08 15:40:58,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:58,089 INFO L471 AbstractCegarLoop]: Abstraction has 23609 states and 35964 transitions. [2024-11-08 15:40:58,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:58,089 INFO L276 IsEmpty]: Start isEmpty. Operand 23609 states and 35964 transitions. [2024-11-08 15:40:58,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 15:40:58,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:58,091 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:40:58,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:40:58,091 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:58,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:58,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1195435618, now seen corresponding path program 1 times [2024-11-08 15:40:58,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:58,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189318021] [2024-11-08 15:40:58,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:58,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:58,282 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 15:40:58,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:58,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189318021] [2024-11-08 15:40:58,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189318021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:58,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:58,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:40:58,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674229916] [2024-11-08 15:40:58,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:58,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:40:58,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:58,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:40:58,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:40:58,285 INFO L87 Difference]: Start difference. First operand 23609 states and 35964 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:58,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:58,758 INFO L93 Difference]: Finished difference Result 59107 states and 90255 transitions. [2024-11-08 15:40:58,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:40:58,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 109 [2024-11-08 15:40:58,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:58,842 INFO L225 Difference]: With dead ends: 59107 [2024-11-08 15:40:58,842 INFO L226 Difference]: Without dead ends: 48161 [2024-11-08 15:40:58,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:40:58,873 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 452 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:58,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 823 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:40:58,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48161 states. [2024-11-08 15:40:59,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48161 to 37091. [2024-11-08 15:40:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37091 states, 37090 states have (on average 1.5195740091668914) internal successors, (56361), 37090 states have internal predecessors, (56361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:59,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37091 states to 37091 states and 56361 transitions. [2024-11-08 15:40:59,660 INFO L78 Accepts]: Start accepts. Automaton has 37091 states and 56361 transitions. Word has length 109 [2024-11-08 15:40:59,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:59,660 INFO L471 AbstractCegarLoop]: Abstraction has 37091 states and 56361 transitions. [2024-11-08 15:40:59,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:59,660 INFO L276 IsEmpty]: Start isEmpty. Operand 37091 states and 56361 transitions. [2024-11-08 15:40:59,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 15:40:59,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:59,663 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:40:59,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:40:59,663 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:59,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:59,663 INFO L85 PathProgramCache]: Analyzing trace with hash -886867038, now seen corresponding path program 1 times [2024-11-08 15:40:59,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:59,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74571769] [2024-11-08 15:40:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:59,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 15:40:59,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:59,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74571769] [2024-11-08 15:40:59,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74571769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:40:59,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:40:59,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:40:59,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859332922] [2024-11-08 15:40:59,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:40:59,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:40:59,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:59,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:40:59,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:40:59,779 INFO L87 Difference]: Start difference. First operand 37091 states and 56361 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:00,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:41:00,295 INFO L93 Difference]: Finished difference Result 63523 states and 97023 transitions. [2024-11-08 15:41:00,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:41:00,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 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 109 [2024-11-08 15:41:00,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:41:00,374 INFO L225 Difference]: With dead ends: 63523 [2024-11-08 15:41:00,374 INFO L226 Difference]: Without dead ends: 52577 [2024-11-08 15:41:00,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:41:00,390 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 449 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:41:00,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 876 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:41:00,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52577 states. [2024-11-08 15:41:01,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52577 to 50355. [2024-11-08 15:41:01,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50355 states, 50354 states have (on average 1.5203360209715215) internal successors, (76555), 50354 states have internal predecessors, (76555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:01,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50355 states to 50355 states and 76555 transitions. [2024-11-08 15:41:01,328 INFO L78 Accepts]: Start accepts. Automaton has 50355 states and 76555 transitions. Word has length 109 [2024-11-08 15:41:01,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:41:01,329 INFO L471 AbstractCegarLoop]: Abstraction has 50355 states and 76555 transitions. [2024-11-08 15:41:01,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:01,329 INFO L276 IsEmpty]: Start isEmpty. Operand 50355 states and 76555 transitions. [2024-11-08 15:41:01,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 15:41:01,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:41:01,331 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:41:01,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:41:01,331 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:41:01,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:41:01,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1752096542, now seen corresponding path program 1 times [2024-11-08 15:41:01,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:41:01,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849187843] [2024-11-08 15:41:01,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:41:01,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:41:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:41:01,457 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:41:01,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:41:01,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849187843] [2024-11-08 15:41:01,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849187843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:41:01,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:41:01,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:41:01,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504351192] [2024-11-08 15:41:01,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:41:01,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:41:01,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:41:01,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:41:01,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:41:01,460 INFO L87 Difference]: Start difference. First operand 50355 states and 76555 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:02,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:41:02,047 INFO L93 Difference]: Finished difference Result 74957 states and 114494 transitions. [2024-11-08 15:41:02,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:41:02,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 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 109 [2024-11-08 15:41:02,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:41:02,291 INFO L225 Difference]: With dead ends: 74957 [2024-11-08 15:41:02,292 INFO L226 Difference]: Without dead ends: 61345 [2024-11-08 15:41:02,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:41:02,313 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 440 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:41:02,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 927 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:41:02,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61345 states. [2024-11-08 15:41:02,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61345 to 59123. [2024-11-08 15:41:03,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59123 states, 59122 states have (on average 1.5219546023476878) internal successors, (89981), 59122 states have internal predecessors, (89981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:03,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59123 states to 59123 states and 89981 transitions. [2024-11-08 15:41:03,144 INFO L78 Accepts]: Start accepts. Automaton has 59123 states and 89981 transitions. Word has length 109 [2024-11-08 15:41:03,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:41:03,144 INFO L471 AbstractCegarLoop]: Abstraction has 59123 states and 89981 transitions. [2024-11-08 15:41:03,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:03,144 INFO L276 IsEmpty]: Start isEmpty. Operand 59123 states and 89981 transitions. [2024-11-08 15:41:03,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 15:41:03,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:41:03,146 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:41:03,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:41:03,146 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:41:03,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:41:03,147 INFO L85 PathProgramCache]: Analyzing trace with hash 19451263, now seen corresponding path program 1 times [2024-11-08 15:41:03,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:41:03,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103965283] [2024-11-08 15:41:03,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:41:03,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:41:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:41:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:41:03,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:41:03,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103965283] [2024-11-08 15:41:03,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103965283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:41:03,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:41:03,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:41:03,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429606385] [2024-11-08 15:41:03,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:41:03,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:41:03,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:41:03,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:41:03,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:41:03,215 INFO L87 Difference]: Start difference. First operand 59123 states and 89981 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:04,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:41:04,320 INFO L93 Difference]: Finished difference Result 140669 states and 214402 transitions. [2024-11-08 15:41:04,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:41:04,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 110 [2024-11-08 15:41:04,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:41:04,462 INFO L225 Difference]: With dead ends: 140669 [2024-11-08 15:41:04,462 INFO L226 Difference]: Without dead ends: 100375 [2024-11-08 15:41:04,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:41:04,505 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 81 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:41:04,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 366 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:41:04,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100375 states. [2024-11-08 15:41:06,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100375 to 100170. [2024-11-08 15:41:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100170 states, 100169 states have (on average 1.5203905399874214) internal successors, (152296), 100169 states have internal predecessors, (152296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:06,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100170 states to 100170 states and 152296 transitions. [2024-11-08 15:41:06,304 INFO L78 Accepts]: Start accepts. Automaton has 100170 states and 152296 transitions. Word has length 110 [2024-11-08 15:41:06,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:41:06,304 INFO L471 AbstractCegarLoop]: Abstraction has 100170 states and 152296 transitions. [2024-11-08 15:41:06,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:06,305 INFO L276 IsEmpty]: Start isEmpty. Operand 100170 states and 152296 transitions. [2024-11-08 15:41:06,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 15:41:06,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:41:06,307 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:41:06,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:41:06,307 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:41:06,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:41:06,308 INFO L85 PathProgramCache]: Analyzing trace with hash -403250563, now seen corresponding path program 1 times [2024-11-08 15:41:06,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:41:06,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414340083] [2024-11-08 15:41:06,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:41:06,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:41:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:41:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:41:06,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:41:06,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414340083] [2024-11-08 15:41:06,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414340083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:41:06,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:41:06,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:41:06,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519543385] [2024-11-08 15:41:06,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:41:06,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 15:41:06,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:41:06,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 15:41:06,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 15:41:06,408 INFO L87 Difference]: Start difference. First operand 100170 states and 152296 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:07,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:41:07,676 INFO L93 Difference]: Finished difference Result 184883 states and 282023 transitions. [2024-11-08 15:41:07,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 15:41:07,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 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 110 [2024-11-08 15:41:07,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:41:07,873 INFO L225 Difference]: With dead ends: 184883 [2024-11-08 15:41:07,873 INFO L226 Difference]: Without dead ends: 140207 [2024-11-08 15:41:07,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 15:41:07,925 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 191 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:41:07,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 609 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:41:08,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140207 states. [2024-11-08 15:41:10,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140207 to 135714. [2024-11-08 15:41:10,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135714 states, 135713 states have (on average 1.516988055676317) internal successors, (205875), 135713 states have internal predecessors, (205875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:10,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135714 states to 135714 states and 205875 transitions. [2024-11-08 15:41:10,694 INFO L78 Accepts]: Start accepts. Automaton has 135714 states and 205875 transitions. Word has length 110 [2024-11-08 15:41:10,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:41:10,694 INFO L471 AbstractCegarLoop]: Abstraction has 135714 states and 205875 transitions. [2024-11-08 15:41:10,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:10,694 INFO L276 IsEmpty]: Start isEmpty. Operand 135714 states and 205875 transitions. [2024-11-08 15:41:10,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 15:41:10,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:41:10,696 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:41:10,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:41:10,696 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:41:10,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:41:10,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1187171385, now seen corresponding path program 1 times [2024-11-08 15:41:10,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:41:10,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688675306] [2024-11-08 15:41:10,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:41:10,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:41:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:41:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 15:41:10,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:41:10,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688675306] [2024-11-08 15:41:10,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688675306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:41:10,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:41:10,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:41:10,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411796535] [2024-11-08 15:41:10,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:41:10,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 15:41:10,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:41:10,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 15:41:10,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 15:41:10,774 INFO L87 Difference]: Start difference. First operand 135714 states and 205875 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:12,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:41:12,186 INFO L93 Difference]: Finished difference Result 206334 states and 314440 transitions. [2024-11-08 15:41:12,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 15:41:12,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 111 [2024-11-08 15:41:12,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:41:12,418 INFO L225 Difference]: With dead ends: 206334 [2024-11-08 15:41:12,418 INFO L226 Difference]: Without dead ends: 167968 [2024-11-08 15:41:12,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 15:41:12,455 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 197 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:41:12,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 609 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:41:12,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167968 states. [2024-11-08 15:41:14,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167968 to 159116. [2024-11-08 15:41:15,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159116 states, 159115 states have (on average 1.5164566508500141) internal successors, (241291), 159115 states have internal predecessors, (241291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:15,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159116 states to 159116 states and 241291 transitions. [2024-11-08 15:41:15,324 INFO L78 Accepts]: Start accepts. Automaton has 159116 states and 241291 transitions. Word has length 111 [2024-11-08 15:41:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:41:15,324 INFO L471 AbstractCegarLoop]: Abstraction has 159116 states and 241291 transitions. [2024-11-08 15:41:15,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 159116 states and 241291 transitions. [2024-11-08 15:41:15,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 15:41:15,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:41:15,326 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:41:15,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 15:41:15,326 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:41:15,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:41:15,326 INFO L85 PathProgramCache]: Analyzing trace with hash 166103031, now seen corresponding path program 1 times [2024-11-08 15:41:15,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:41:15,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587035684] [2024-11-08 15:41:15,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:41:15,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:41:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:41:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 15:41:15,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:41:15,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587035684] [2024-11-08 15:41:15,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587035684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:41:15,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:41:15,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:41:15,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445709359] [2024-11-08 15:41:15,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:41:15,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:41:15,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:41:15,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:41:15,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:41:15,383 INFO L87 Difference]: Start difference. First operand 159116 states and 241291 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:18,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:41:18,188 INFO L93 Difference]: Finished difference Result 336554 states and 511577 transitions. [2024-11-08 15:41:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:41:18,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 111 [2024-11-08 15:41:18,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:41:18,613 INFO L225 Difference]: With dead ends: 336554 [2024-11-08 15:41:18,614 INFO L226 Difference]: Without dead ends: 261260 [2024-11-08 15:41:18,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:41:18,698 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 81 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:41:18,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 367 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:41:18,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261260 states. [2024-11-08 15:41:22,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261260 to 260526. [2024-11-08 15:41:23,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260526 states, 260525 states have (on average 1.514422800115152) internal successors, (394545), 260525 states have internal predecessors, (394545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:23,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260526 states to 260526 states and 394545 transitions. [2024-11-08 15:41:23,878 INFO L78 Accepts]: Start accepts. Automaton has 260526 states and 394545 transitions. Word has length 111 [2024-11-08 15:41:23,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:41:23,878 INFO L471 AbstractCegarLoop]: Abstraction has 260526 states and 394545 transitions. [2024-11-08 15:41:23,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:41:23,878 INFO L276 IsEmpty]: Start isEmpty. Operand 260526 states and 394545 transitions. [2024-11-08 15:41:23,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 15:41:23,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:41:23,880 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:41:23,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 15:41:23,881 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:41:23,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:41:23,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1809869492, now seen corresponding path program 1 times [2024-11-08 15:41:23,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:41:23,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11643968] [2024-11-08 15:41:23,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:41:23,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:41:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:41:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:41:23,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:41:23,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11643968] [2024-11-08 15:41:23,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11643968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:41:23,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:41:23,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:41:23,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860393594] [2024-11-08 15:41:23,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:41:23,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:41:23,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:41:23,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:41:23,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:41:23,927 INFO L87 Difference]: Start difference. First operand 260526 states and 394545 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)