./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cf612fb43c98d640569a1c9328794313185fe1b6a4dbfc7e502cbb16fa8754d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:10:25,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:10:26,078 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:10:26,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:10:26,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:10:26,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:10:26,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:10:26,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:10:26,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:10:26,112 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:10:26,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:10:26,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:10:26,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:10:26,114 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:10:26,116 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:10:26,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:10:26,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:10:26,117 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:10:26,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:10:26,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:10:26,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:10:26,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:10:26,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:10:26,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:10:26,121 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:10:26,122 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:10:26,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:10:26,122 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:10:26,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:10:26,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:10:26,123 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:10:26,123 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:10:26,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:10:26,123 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:10:26,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:10:26,124 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:10:26,124 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:10:26,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:10:26,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:10:26,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:10:26,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:10:26,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:10:26,126 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf612fb43c98d640569a1c9328794313185fe1b6a4dbfc7e502cbb16fa8754d [2024-11-18 15:10:26,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:10:26,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:10:26,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:10:26,397 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:10:26,398 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:10:26,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2024-11-18 15:10:27,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:10:28,072 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:10:28,073 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2024-11-18 15:10:28,086 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88d4975b/6efeed04610840809bc6ba3802495dd2/FLAG23993f834 [2024-11-18 15:10:28,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88d4975b/6efeed04610840809bc6ba3802495dd2 [2024-11-18 15:10:28,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:10:28,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:10:28,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:10:28,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:10:28,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:10:28,432 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:28,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c33eab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28, skipping insertion in model container [2024-11-18 15:10:28,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:28,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:10:28,763 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-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c[7633,7646] [2024-11-18 15:10:28,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:10:28,823 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:10:28,896 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-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c[7633,7646] [2024-11-18 15:10:28,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:10:28,963 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:10:28,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28 WrapperNode [2024-11-18 15:10:28,963 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:10:28,964 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:10:28,964 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:10:28,964 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:10:28,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:28,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:29,017 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 630 [2024-11-18 15:10:29,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:10:29,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:10:29,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:10:29,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:10:29,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:29,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:29,042 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:29,068 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]. [2024-11-18 15:10:29,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:29,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:29,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:29,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:29,094 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:29,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:29,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:10:29,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:10:29,101 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:10:29,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:10:29,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (1/1) ... [2024-11-18 15:10:29,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:10:29,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:10:29,141 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) [2024-11-18 15:10:29,144 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 [2024-11-18 15:10:29,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:10:29,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:10:29,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:10:29,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:10:29,339 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:10:29,341 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:10:29,966 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-18 15:10:29,966 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:10:29,981 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:10:29,981 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 15:10:29,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:10:29 BoogieIcfgContainer [2024-11-18 15:10:29,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:10:29,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:10:29,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:10:29,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:10:29,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:10:28" (1/3) ... [2024-11-18 15:10:29,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403021f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:10:29, skipping insertion in model container [2024-11-18 15:10:29,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:10:28" (2/3) ... [2024-11-18 15:10:29,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403021f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:10:29, skipping insertion in model container [2024-11-18 15:10:29,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:10:29" (3/3) ... [2024-11-18 15:10:29,992 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+cfa-reducer.c [2024-11-18 15:10:30,005 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:10:30,005 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 15:10:30,067 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:10:30,073 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;@87a4446, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:10:30,074 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 15:10:30,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 134 states have (on average 1.7537313432835822) internal successors, (235), 135 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:30,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-18 15:10:30,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:30,093 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:30,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:30,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:30,099 INFO L85 PathProgramCache]: Analyzing trace with hash -313177950, now seen corresponding path program 1 times [2024-11-18 15:10:30,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:30,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361381502] [2024-11-18 15:10:30,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:30,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:30,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:30,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:30,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361381502] [2024-11-18 15:10:30,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361381502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:30,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:30,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:10:30,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58199114] [2024-11-18 15:10:30,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:30,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:10:30,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:30,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:10:30,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:10:30,808 INFO L87 Difference]: Start difference. First operand has 136 states, 134 states have (on average 1.7537313432835822) internal successors, (235), 135 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:30,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:30,880 INFO L93 Difference]: Finished difference Result 294 states and 484 transitions. [2024-11-18 15:10:30,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:10:30,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-18 15:10:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:30,893 INFO L225 Difference]: With dead ends: 294 [2024-11-18 15:10:30,893 INFO L226 Difference]: Without dead ends: 205 [2024-11-18 15:10:30,896 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 [2024-11-18 15:10:30,899 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 166 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:30,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 475 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:10:30,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-18 15:10:30,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2024-11-18 15:10:30,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 202 states have (on average 1.4455445544554455) internal successors, (292), 202 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) [2024-11-18 15:10:30,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 292 transitions. [2024-11-18 15:10:30,967 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 292 transitions. Word has length 86 [2024-11-18 15:10:30,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:30,967 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 292 transitions. [2024-11-18 15:10:30,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:30,968 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 292 transitions. [2024-11-18 15:10:30,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 15:10:30,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:30,972 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:30,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:10:30,973 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:30,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:30,974 INFO L85 PathProgramCache]: Analyzing trace with hash 982762601, now seen corresponding path program 1 times [2024-11-18 15:10:30,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:30,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492977105] [2024-11-18 15:10:30,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:30,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:31,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:31,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:31,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492977105] [2024-11-18 15:10:31,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492977105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:31,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:31,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:10:31,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318417295] [2024-11-18 15:10:31,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:31,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:10:31,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:31,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:10:31,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:10:31,156 INFO L87 Difference]: Start difference. First operand 203 states and 292 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:31,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:31,199 INFO L93 Difference]: Finished difference Result 487 states and 744 transitions. [2024-11-18 15:10:31,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:10:31,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-18 15:10:31,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:31,202 INFO L225 Difference]: With dead ends: 487 [2024-11-18 15:10:31,202 INFO L226 Difference]: Without dead ends: 337 [2024-11-18 15:10:31,203 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 [2024-11-18 15:10:31,205 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 112 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 408 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 [2024-11-18 15:10:31,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 408 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:10:31,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-18 15:10:31,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2024-11-18 15:10:31,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.5029940119760479) internal successors, (502), 334 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:31,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 502 transitions. [2024-11-18 15:10:31,244 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 502 transitions. Word has length 87 [2024-11-18 15:10:31,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:31,245 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 502 transitions. [2024-11-18 15:10:31,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:31,246 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 502 transitions. [2024-11-18 15:10:31,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-18 15:10:31,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:31,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:31,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:10:31,248 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:31,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:31,249 INFO L85 PathProgramCache]: Analyzing trace with hash 914543768, now seen corresponding path program 1 times [2024-11-18 15:10:31,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:31,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300121369] [2024-11-18 15:10:31,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:31,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:31,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:31,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:31,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300121369] [2024-11-18 15:10:31,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300121369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:31,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:31,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:10:31,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054788013] [2024-11-18 15:10:31,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:31,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:10:31,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:31,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:10:31,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:10:31,468 INFO L87 Difference]: Start difference. First operand 335 states and 502 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:31,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:31,504 INFO L93 Difference]: Finished difference Result 867 states and 1348 transitions. [2024-11-18 15:10:31,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:10:31,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2024-11-18 15:10:31,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:31,513 INFO L225 Difference]: With dead ends: 867 [2024-11-18 15:10:31,514 INFO L226 Difference]: Without dead ends: 585 [2024-11-18 15:10:31,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:10:31,519 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 107 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 404 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 [2024-11-18 15:10:31,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 404 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:10:31,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-18 15:10:31,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 583. [2024-11-18 15:10:31,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 582 states have (on average 1.5360824742268042) internal successors, (894), 582 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:31,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 894 transitions. [2024-11-18 15:10:31,560 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 894 transitions. Word has length 88 [2024-11-18 15:10:31,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:31,560 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 894 transitions. [2024-11-18 15:10:31,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:31,561 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 894 transitions. [2024-11-18 15:10:31,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 15:10:31,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:31,562 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:31,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:10:31,563 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:31,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:31,567 INFO L85 PathProgramCache]: Analyzing trace with hash 349801040, now seen corresponding path program 1 times [2024-11-18 15:10:31,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:31,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096659680] [2024-11-18 15:10:31,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:31,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:31,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:31,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:31,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096659680] [2024-11-18 15:10:31,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096659680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:31,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:31,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:10:31,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8797613] [2024-11-18 15:10:31,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:31,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:10:31,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:31,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:10:31,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:10:31,728 INFO L87 Difference]: Start difference. First operand 583 states and 894 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:31,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:31,760 INFO L93 Difference]: Finished difference Result 1579 states and 2472 transitions. [2024-11-18 15:10:31,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:10:31,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-11-18 15:10:31,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:31,768 INFO L225 Difference]: With dead ends: 1579 [2024-11-18 15:10:31,768 INFO L226 Difference]: Without dead ends: 1049 [2024-11-18 15:10:31,771 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 [2024-11-18 15:10:31,772 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 102 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 400 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 [2024-11-18 15:10:31,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 400 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:10:31,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2024-11-18 15:10:31,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1047. [2024-11-18 15:10:31,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1046 states have (on average 1.5506692160611855) internal successors, (1622), 1046 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:31,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1622 transitions. [2024-11-18 15:10:31,811 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1622 transitions. Word has length 89 [2024-11-18 15:10:31,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:31,812 INFO L471 AbstractCegarLoop]: Abstraction has 1047 states and 1622 transitions. [2024-11-18 15:10:31,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:31,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1622 transitions. [2024-11-18 15:10:31,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 15:10:31,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:31,817 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:31,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:10:31,817 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:31,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:31,818 INFO L85 PathProgramCache]: Analyzing trace with hash -248220501, now seen corresponding path program 1 times [2024-11-18 15:10:31,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:31,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190340366] [2024-11-18 15:10:31,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:31,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:31,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:31,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:31,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190340366] [2024-11-18 15:10:31,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190340366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:31,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:31,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:10:31,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712487440] [2024-11-18 15:10:31,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:31,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:10:31,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:31,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:10:31,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:10:31,982 INFO L87 Difference]: Start difference. First operand 1047 states and 1622 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:32,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:32,016 INFO L93 Difference]: Finished difference Result 2907 states and 4552 transitions. [2024-11-18 15:10:32,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:10:32,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-18 15:10:32,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:32,025 INFO L225 Difference]: With dead ends: 2907 [2024-11-18 15:10:32,025 INFO L226 Difference]: Without dead ends: 1913 [2024-11-18 15:10:32,027 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 [2024-11-18 15:10:32,028 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 97 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 396 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 [2024-11-18 15:10:32,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 396 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:10:32,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1913 states. [2024-11-18 15:10:32,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1913 to 1911. [2024-11-18 15:10:32,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1910 states have (on average 1.5528795811518326) internal successors, (2966), 1910 states have internal predecessors, (2966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2966 transitions. [2024-11-18 15:10:32,096 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2966 transitions. Word has length 90 [2024-11-18 15:10:32,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:32,098 INFO L471 AbstractCegarLoop]: Abstraction has 1911 states and 2966 transitions. [2024-11-18 15:10:32,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:32,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2966 transitions. [2024-11-18 15:10:32,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 15:10:32,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:32,101 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:32,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:10:32,102 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:32,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:32,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1910770737, now seen corresponding path program 1 times [2024-11-18 15:10:32,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:32,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300096133] [2024-11-18 15:10:32,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:32,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:32,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:32,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:32,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300096133] [2024-11-18 15:10:32,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300096133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:32,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:32,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:10:32,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236064192] [2024-11-18 15:10:32,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:32,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:10:32,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:32,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:10:32,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:10:32,215 INFO L87 Difference]: Start difference. First operand 1911 states and 2966 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:32,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:32,267 INFO L93 Difference]: Finished difference Result 5371 states and 8376 transitions. [2024-11-18 15:10:32,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:10:32,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-18 15:10:32,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:32,281 INFO L225 Difference]: With dead ends: 5371 [2024-11-18 15:10:32,282 INFO L226 Difference]: Without dead ends: 3513 [2024-11-18 15:10:32,285 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 [2024-11-18 15:10:32,287 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 92 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 392 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 [2024-11-18 15:10:32,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 392 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:10:32,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3513 states. [2024-11-18 15:10:32,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3513 to 3511. [2024-11-18 15:10:32,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3511 states, 3510 states have (on average 1.547008547008547) internal successors, (5430), 3510 states have internal predecessors, (5430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:32,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3511 states to 3511 states and 5430 transitions. [2024-11-18 15:10:32,372 INFO L78 Accepts]: Start accepts. Automaton has 3511 states and 5430 transitions. Word has length 91 [2024-11-18 15:10:32,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:32,372 INFO L471 AbstractCegarLoop]: Abstraction has 3511 states and 5430 transitions. [2024-11-18 15:10:32,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:32,372 INFO L276 IsEmpty]: Start isEmpty. Operand 3511 states and 5430 transitions. [2024-11-18 15:10:32,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 15:10:32,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:32,373 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:32,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:10:32,373 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:32,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:32,374 INFO L85 PathProgramCache]: Analyzing trace with hash 307326139, now seen corresponding path program 1 times [2024-11-18 15:10:32,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:32,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236552472] [2024-11-18 15:10:32,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:32,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:32,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:32,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:32,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236552472] [2024-11-18 15:10:32,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236552472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:32,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:32,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:10:32,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382723181] [2024-11-18 15:10:32,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:32,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:10:32,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:32,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:10:32,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:10:32,477 INFO L87 Difference]: Start difference. First operand 3511 states and 5430 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:32,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:32,533 INFO L93 Difference]: Finished difference Result 9915 states and 15352 transitions. [2024-11-18 15:10:32,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:10:32,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-18 15:10:32,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:32,558 INFO L225 Difference]: With dead ends: 9915 [2024-11-18 15:10:32,559 INFO L226 Difference]: Without dead ends: 6457 [2024-11-18 15:10:32,565 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 [2024-11-18 15:10:32,566 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 87 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 388 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 [2024-11-18 15:10:32,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 388 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:10:32,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6457 states. [2024-11-18 15:10:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6457 to 6455. [2024-11-18 15:10:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6455 states, 6454 states have (on average 1.5354818717074683) internal successors, (9910), 6454 states have internal predecessors, (9910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:32,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6455 states to 6455 states and 9910 transitions. [2024-11-18 15:10:32,744 INFO L78 Accepts]: Start accepts. Automaton has 6455 states and 9910 transitions. Word has length 92 [2024-11-18 15:10:32,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:32,745 INFO L471 AbstractCegarLoop]: Abstraction has 6455 states and 9910 transitions. [2024-11-18 15:10:32,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:32,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6455 states and 9910 transitions. [2024-11-18 15:10:32,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 15:10:32,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:32,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:32,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:10:32,746 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:32,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:32,747 INFO L85 PathProgramCache]: Analyzing trace with hash -450885343, now seen corresponding path program 1 times [2024-11-18 15:10:32,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:32,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386515180] [2024-11-18 15:10:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:32,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:32,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:32,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:32,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386515180] [2024-11-18 15:10:32,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386515180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:32,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:32,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:10:32,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334495112] [2024-11-18 15:10:32,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:33,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:10:33,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:33,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:10:33,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:10:33,001 INFO L87 Difference]: Start difference. First operand 6455 states and 9910 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:33,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:33,845 INFO L93 Difference]: Finished difference Result 96083 states and 147908 transitions. [2024-11-18 15:10:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 15:10:33,846 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-18 15:10:33,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:34,160 INFO L225 Difference]: With dead ends: 96083 [2024-11-18 15:10:34,160 INFO L226 Difference]: Without dead ends: 89681 [2024-11-18 15:10:34,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-18 15:10:34,224 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 2471 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2471 SdHoareTripleChecker+Valid, 3927 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:34,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2471 Valid, 3927 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:10:34,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89681 states. [2024-11-18 15:10:35,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89681 to 12855. [2024-11-18 15:10:35,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12855 states, 12854 states have (on average 1.5178154660028007) internal successors, (19510), 12854 states have internal predecessors, (19510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:35,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12855 states to 12855 states and 19510 transitions. [2024-11-18 15:10:35,346 INFO L78 Accepts]: Start accepts. Automaton has 12855 states and 19510 transitions. Word has length 93 [2024-11-18 15:10:35,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:35,347 INFO L471 AbstractCegarLoop]: Abstraction has 12855 states and 19510 transitions. [2024-11-18 15:10:35,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:35,347 INFO L276 IsEmpty]: Start isEmpty. Operand 12855 states and 19510 transitions. [2024-11-18 15:10:35,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-18 15:10:35,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:35,348 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:35,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:10:35,349 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:35,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:35,350 INFO L85 PathProgramCache]: Analyzing trace with hash -430936003, now seen corresponding path program 1 times [2024-11-18 15:10:35,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:35,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445165995] [2024-11-18 15:10:35,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:35,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:35,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:35,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445165995] [2024-11-18 15:10:35,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445165995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:35,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:35,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:10:35,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324724979] [2024-11-18 15:10:35,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:35,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:10:35,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:35,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:10:35,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:10:35,464 INFO L87 Difference]: Start difference. First operand 12855 states and 19510 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:35,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:35,554 INFO L93 Difference]: Finished difference Result 31869 states and 48378 transitions. [2024-11-18 15:10:35,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:10:35,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-18 15:10:35,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:35,596 INFO L225 Difference]: With dead ends: 31869 [2024-11-18 15:10:35,596 INFO L226 Difference]: Without dead ends: 19067 [2024-11-18 15:10:35,616 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 [2024-11-18 15:10:35,618 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 78 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:35,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 348 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:10:35,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19067 states. [2024-11-18 15:10:36,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19067 to 19065. [2024-11-18 15:10:36,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19065 states, 19064 states have (on average 1.506924045321024) internal successors, (28728), 19064 states have internal predecessors, (28728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:36,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19065 states to 19065 states and 28728 transitions. [2024-11-18 15:10:36,091 INFO L78 Accepts]: Start accepts. Automaton has 19065 states and 28728 transitions. Word has length 95 [2024-11-18 15:10:36,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:36,091 INFO L471 AbstractCegarLoop]: Abstraction has 19065 states and 28728 transitions. [2024-11-18 15:10:36,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:36,092 INFO L276 IsEmpty]: Start isEmpty. Operand 19065 states and 28728 transitions. [2024-11-18 15:10:36,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-18 15:10:36,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:36,093 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:36,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:10:36,093 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:36,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:36,094 INFO L85 PathProgramCache]: Analyzing trace with hash -409933348, now seen corresponding path program 1 times [2024-11-18 15:10:36,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:36,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323291372] [2024-11-18 15:10:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:36,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:36,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:36,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:36,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323291372] [2024-11-18 15:10:36,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323291372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:36,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:36,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:10:36,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121830569] [2024-11-18 15:10:36,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:36,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:10:36,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:36,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:10:36,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:10:36,747 INFO L87 Difference]: Start difference. First operand 19065 states and 28728 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:37,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:37,270 INFO L93 Difference]: Finished difference Result 38077 states and 57402 transitions. [2024-11-18 15:10:37,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:10:37,271 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-18 15:10:37,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:37,298 INFO L225 Difference]: With dead ends: 38077 [2024-11-18 15:10:37,299 INFO L226 Difference]: Without dead ends: 19067 [2024-11-18 15:10:37,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-18 15:10:37,323 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 376 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:37,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 915 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:10:37,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19067 states. [2024-11-18 15:10:37,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19067 to 19065. [2024-11-18 15:10:37,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19065 states, 19064 states have (on average 1.496852706672262) internal successors, (28536), 19064 states have internal predecessors, (28536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:37,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19065 states to 19065 states and 28536 transitions. [2024-11-18 15:10:37,691 INFO L78 Accepts]: Start accepts. Automaton has 19065 states and 28536 transitions. Word has length 95 [2024-11-18 15:10:37,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:37,691 INFO L471 AbstractCegarLoop]: Abstraction has 19065 states and 28536 transitions. [2024-11-18 15:10:37,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:37,692 INFO L276 IsEmpty]: Start isEmpty. Operand 19065 states and 28536 transitions. [2024-11-18 15:10:37,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 15:10:37,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:37,693 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:37,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:10:37,693 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:37,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:37,694 INFO L85 PathProgramCache]: Analyzing trace with hash 175058828, now seen corresponding path program 1 times [2024-11-18 15:10:37,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:37,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403695727] [2024-11-18 15:10:37,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:37,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:37,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:37,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:37,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403695727] [2024-11-18 15:10:37,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403695727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:37,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:37,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:10:37,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87307388] [2024-11-18 15:10:37,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:37,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:10:37,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:37,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:10:37,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:10:37,825 INFO L87 Difference]: Start difference. First operand 19065 states and 28536 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-18 15:10:37,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:37,999 INFO L93 Difference]: Finished difference Result 38075 states and 57017 transitions. [2024-11-18 15:10:38,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:10:38,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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 96 [2024-11-18 15:10:38,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:38,022 INFO L225 Difference]: With dead ends: 38075 [2024-11-18 15:10:38,023 INFO L226 Difference]: Without dead ends: 19065 [2024-11-18 15:10:38,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:10:38,040 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 421 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:38,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 147 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:10:38,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19065 states. [2024-11-18 15:10:38,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19065 to 19065. [2024-11-18 15:10:38,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19065 states, 19064 states have (on average 1.4867813680234998) internal successors, (28344), 19064 states have internal predecessors, (28344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:38,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19065 states to 19065 states and 28344 transitions. [2024-11-18 15:10:38,396 INFO L78 Accepts]: Start accepts. Automaton has 19065 states and 28344 transitions. Word has length 96 [2024-11-18 15:10:38,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:38,396 INFO L471 AbstractCegarLoop]: Abstraction has 19065 states and 28344 transitions. [2024-11-18 15:10:38,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-18 15:10:38,397 INFO L276 IsEmpty]: Start isEmpty. Operand 19065 states and 28344 transitions. [2024-11-18 15:10:38,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 15:10:38,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:38,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:38,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:10:38,398 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:38,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:38,399 INFO L85 PathProgramCache]: Analyzing trace with hash 303144135, now seen corresponding path program 1 times [2024-11-18 15:10:38,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:38,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121074482] [2024-11-18 15:10:38,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:38,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:38,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:38,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:38,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121074482] [2024-11-18 15:10:38,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121074482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:38,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:38,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:10:38,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333755798] [2024-11-18 15:10:38,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:38,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:10:38,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:38,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:10:38,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:10:38,527 INFO L87 Difference]: Start difference. First operand 19065 states and 28344 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-18 15:10:38,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:38,799 INFO L93 Difference]: Finished difference Result 38075 states and 56633 transitions. [2024-11-18 15:10:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:10:38,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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 96 [2024-11-18 15:10:38,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:38,825 INFO L225 Difference]: With dead ends: 38075 [2024-11-18 15:10:38,825 INFO L226 Difference]: Without dead ends: 19065 [2024-11-18 15:10:38,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:10:38,843 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 392 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:38,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 163 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:10:38,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19065 states. [2024-11-18 15:10:39,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19065 to 19065. [2024-11-18 15:10:39,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19065 states, 19064 states have (on average 1.4767100293747377) internal successors, (28152), 19064 states have internal predecessors, (28152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19065 states to 19065 states and 28152 transitions. [2024-11-18 15:10:39,229 INFO L78 Accepts]: Start accepts. Automaton has 19065 states and 28152 transitions. Word has length 96 [2024-11-18 15:10:39,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:39,230 INFO L471 AbstractCegarLoop]: Abstraction has 19065 states and 28152 transitions. [2024-11-18 15:10:39,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-18 15:10:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 19065 states and 28152 transitions. [2024-11-18 15:10:39,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 15:10:39,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:39,231 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:39,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 15:10:39,232 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:39,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:39,232 INFO L85 PathProgramCache]: Analyzing trace with hash -226146366, now seen corresponding path program 1 times [2024-11-18 15:10:39,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:39,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094949440] [2024-11-18 15:10:39,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:39,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:39,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:39,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:39,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094949440] [2024-11-18 15:10:39,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094949440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:39,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:39,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:10:39,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072244355] [2024-11-18 15:10:39,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:39,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:10:39,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:39,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:10:39,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:10:39,415 INFO L87 Difference]: Start difference. First operand 19065 states and 28152 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-18 15:10:39,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:39,596 INFO L93 Difference]: Finished difference Result 38075 states and 56249 transitions. [2024-11-18 15:10:39,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:10:39,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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 96 [2024-11-18 15:10:39,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:39,623 INFO L225 Difference]: With dead ends: 38075 [2024-11-18 15:10:39,624 INFO L226 Difference]: Without dead ends: 19065 [2024-11-18 15:10:39,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:10:39,645 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 428 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:39,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 139 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:10:39,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19065 states. [2024-11-18 15:10:39,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19065 to 19065. [2024-11-18 15:10:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19065 states, 19064 states have (on average 1.4666386907259756) internal successors, (27960), 19064 states have internal predecessors, (27960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:40,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19065 states to 19065 states and 27960 transitions. [2024-11-18 15:10:40,042 INFO L78 Accepts]: Start accepts. Automaton has 19065 states and 27960 transitions. Word has length 96 [2024-11-18 15:10:40,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:40,043 INFO L471 AbstractCegarLoop]: Abstraction has 19065 states and 27960 transitions. [2024-11-18 15:10:40,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-18 15:10:40,043 INFO L276 IsEmpty]: Start isEmpty. Operand 19065 states and 27960 transitions. [2024-11-18 15:10:40,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 15:10:40,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:40,044 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:40,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 15:10:40,044 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:40,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:40,045 INFO L85 PathProgramCache]: Analyzing trace with hash -989010073, now seen corresponding path program 1 times [2024-11-18 15:10:40,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:40,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543043057] [2024-11-18 15:10:40,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:40,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:40,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:40,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:40,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543043057] [2024-11-18 15:10:40,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543043057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:40,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:40,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:10:40,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611926558] [2024-11-18 15:10:40,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:40,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:10:40,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:40,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:10:40,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:10:40,166 INFO L87 Difference]: Start difference. First operand 19065 states and 27960 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-18 15:10:40,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:40,456 INFO L93 Difference]: Finished difference Result 38075 states and 55865 transitions. [2024-11-18 15:10:40,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:10:40,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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 96 [2024-11-18 15:10:40,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:40,479 INFO L225 Difference]: With dead ends: 38075 [2024-11-18 15:10:40,480 INFO L226 Difference]: Without dead ends: 19065 [2024-11-18 15:10:40,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:10:40,495 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 451 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:40,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 123 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:10:40,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19065 states. [2024-11-18 15:10:40,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19065 to 19065. [2024-11-18 15:10:40,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19065 states, 19064 states have (on average 1.4565673520772136) internal successors, (27768), 19064 states have internal predecessors, (27768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:40,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19065 states to 19065 states and 27768 transitions. [2024-11-18 15:10:40,729 INFO L78 Accepts]: Start accepts. Automaton has 19065 states and 27768 transitions. Word has length 96 [2024-11-18 15:10:40,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:40,730 INFO L471 AbstractCegarLoop]: Abstraction has 19065 states and 27768 transitions. [2024-11-18 15:10:40,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-18 15:10:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 19065 states and 27768 transitions. [2024-11-18 15:10:40,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 15:10:40,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:40,731 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:40,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 15:10:40,731 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:40,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:40,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1564540108, now seen corresponding path program 1 times [2024-11-18 15:10:40,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:40,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417817356] [2024-11-18 15:10:40,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:40,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:40,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:40,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:40,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417817356] [2024-11-18 15:10:40,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417817356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:40,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:40,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:10:40,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859974073] [2024-11-18 15:10:40,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:40,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:10:40,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:40,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:10:40,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:10:40,942 INFO L87 Difference]: Start difference. First operand 19065 states and 27768 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-18 15:10:41,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:41,086 INFO L93 Difference]: Finished difference Result 38075 states and 55481 transitions. [2024-11-18 15:10:41,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:10:41,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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 96 [2024-11-18 15:10:41,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:41,104 INFO L225 Difference]: With dead ends: 38075 [2024-11-18 15:10:41,104 INFO L226 Difference]: Without dead ends: 19065 [2024-11-18 15:10:41,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:10:41,121 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 435 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:41,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 131 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:10:41,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19065 states. [2024-11-18 15:10:41,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19065 to 19065. [2024-11-18 15:10:41,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19065 states, 19064 states have (on average 1.4464960134284515) internal successors, (27576), 19064 states have internal predecessors, (27576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:41,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19065 states to 19065 states and 27576 transitions. [2024-11-18 15:10:41,466 INFO L78 Accepts]: Start accepts. Automaton has 19065 states and 27576 transitions. Word has length 96 [2024-11-18 15:10:41,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:41,467 INFO L471 AbstractCegarLoop]: Abstraction has 19065 states and 27576 transitions. [2024-11-18 15:10:41,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-18 15:10:41,467 INFO L276 IsEmpty]: Start isEmpty. Operand 19065 states and 27576 transitions. [2024-11-18 15:10:41,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 15:10:41,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:41,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:41,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 15:10:41,468 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:41,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:41,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1932811335, now seen corresponding path program 1 times [2024-11-18 15:10:41,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:41,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302454134] [2024-11-18 15:10:41,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:41,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:10:41,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:41,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302454134] [2024-11-18 15:10:41,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302454134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:41,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:41,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:10:41,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280856430] [2024-11-18 15:10:41,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:41,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:10:41,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:41,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:10:41,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:10:41,877 INFO L87 Difference]: Start difference. First operand 19065 states and 27576 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) [2024-11-18 15:10:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:41,957 INFO L93 Difference]: Finished difference Result 19579 states and 28345 transitions. [2024-11-18 15:10:41,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:10:41,957 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 96 [2024-11-18 15:10:41,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:41,985 INFO L225 Difference]: With dead ends: 19579 [2024-11-18 15:10:41,985 INFO L226 Difference]: Without dead ends: 19577 [2024-11-18 15:10:41,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:10:41,995 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:41,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 676 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:10:42,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19577 states. [2024-11-18 15:10:42,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19577 to 19577. [2024-11-18 15:10:42,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19577 states, 19576 states have (on average 1.431548835308541) internal successors, (28024), 19576 states have internal predecessors, (28024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19577 states to 19577 states and 28024 transitions. [2024-11-18 15:10:42,274 INFO L78 Accepts]: Start accepts. Automaton has 19577 states and 28024 transitions. Word has length 96 [2024-11-18 15:10:42,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:42,275 INFO L471 AbstractCegarLoop]: Abstraction has 19577 states and 28024 transitions. [2024-11-18 15:10:42,275 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) [2024-11-18 15:10:42,275 INFO L276 IsEmpty]: Start isEmpty. Operand 19577 states and 28024 transitions. [2024-11-18 15:10:42,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 15:10:42,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:42,359 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:42,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 15:10:42,359 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:42,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:42,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1935236596, now seen corresponding path program 1 times [2024-11-18 15:10:42,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:42,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663609109] [2024-11-18 15:10:42,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:42,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:42,624 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 15:10:42,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:42,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663609109] [2024-11-18 15:10:42,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663609109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:42,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:42,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:10:42,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86781145] [2024-11-18 15:10:42,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:42,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:10:42,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:42,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:10:42,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:10:42,627 INFO L87 Difference]: Start difference. First operand 19577 states and 28024 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:43,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:43,095 INFO L93 Difference]: Finished difference Result 153609 states and 220000 transitions. [2024-11-18 15:10:43,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:10:43,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 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 130 [2024-11-18 15:10:43,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:43,265 INFO L225 Difference]: With dead ends: 153609 [2024-11-18 15:10:43,265 INFO L226 Difference]: Without dead ends: 140295 [2024-11-18 15:10:43,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 15:10:43,324 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 2073 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2073 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:43,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2073 Valid, 1943 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:10:43,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140295 states. [2024-11-18 15:10:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140295 to 36025. [2024-11-18 15:10:44,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36025 states, 36024 states have (on average 1.4272707084166112) internal successors, (51416), 36024 states have internal predecessors, (51416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:44,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36025 states to 36025 states and 51416 transitions. [2024-11-18 15:10:44,578 INFO L78 Accepts]: Start accepts. Automaton has 36025 states and 51416 transitions. Word has length 130 [2024-11-18 15:10:44,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:44,578 INFO L471 AbstractCegarLoop]: Abstraction has 36025 states and 51416 transitions. [2024-11-18 15:10:44,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 9 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:44,578 INFO L276 IsEmpty]: Start isEmpty. Operand 36025 states and 51416 transitions. [2024-11-18 15:10:44,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 15:10:44,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:44,586 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:44,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 15:10:44,586 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:44,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:44,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1292810630, now seen corresponding path program 1 times [2024-11-18 15:10:44,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:44,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364597524] [2024-11-18 15:10:44,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:44,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:44,823 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 15:10:44,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:44,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364597524] [2024-11-18 15:10:44,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364597524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:44,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:44,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:10:44,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039421368] [2024-11-18 15:10:44,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:44,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:10:44,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:44,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:10:44,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:10:44,825 INFO L87 Difference]: Start difference. First operand 36025 states and 51416 transitions. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:45,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:45,663 INFO L93 Difference]: Finished difference Result 173129 states and 247840 transitions. [2024-11-18 15:10:45,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:10:45,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 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 130 [2024-11-18 15:10:45,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:45,875 INFO L225 Difference]: With dead ends: 173129 [2024-11-18 15:10:45,875 INFO L226 Difference]: Without dead ends: 153607 [2024-11-18 15:10:45,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 15:10:45,934 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 2074 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:45,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 1878 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:10:46,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153607 states. [2024-11-18 15:10:47,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153607 to 62201. [2024-11-18 15:10:47,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62201 states, 62200 states have (on average 1.4244372990353698) internal successors, (88600), 62200 states have internal predecessors, (88600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62201 states to 62201 states and 88600 transitions. [2024-11-18 15:10:47,710 INFO L78 Accepts]: Start accepts. Automaton has 62201 states and 88600 transitions. Word has length 130 [2024-11-18 15:10:47,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:47,710 INFO L471 AbstractCegarLoop]: Abstraction has 62201 states and 88600 transitions. [2024-11-18 15:10:47,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:47,710 INFO L276 IsEmpty]: Start isEmpty. Operand 62201 states and 88600 transitions. [2024-11-18 15:10:47,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 15:10:47,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:47,721 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:47,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 15:10:47,721 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:47,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:47,722 INFO L85 PathProgramCache]: Analyzing trace with hash -194677870, now seen corresponding path program 1 times [2024-11-18 15:10:47,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:47,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647319059] [2024-11-18 15:10:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:47,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:47,952 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 15:10:47,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:47,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647319059] [2024-11-18 15:10:47,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647319059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:47,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:47,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:10:47,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973086261] [2024-11-18 15:10:47,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:47,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:10:47,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:47,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:10:47,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:10:47,956 INFO L87 Difference]: Start difference. First operand 62201 states and 88600 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:48,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:48,967 INFO L93 Difference]: Finished difference Result 192649 states and 275616 transitions. [2024-11-18 15:10:48,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:10:48,979 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 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 130 [2024-11-18 15:10:48,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:49,234 INFO L225 Difference]: With dead ends: 192649 [2024-11-18 15:10:49,234 INFO L226 Difference]: Without dead ends: 173127 [2024-11-18 15:10:49,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 15:10:49,260 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 2168 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2168 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:49,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2168 Valid, 2080 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:10:49,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173127 states. [2024-11-18 15:10:50,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173127 to 81721. [2024-11-18 15:10:50,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81721 states, 81720 states have (on average 1.4240822320117474) internal successors, (116376), 81720 states have internal predecessors, (116376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:51,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81721 states to 81721 states and 116376 transitions. [2024-11-18 15:10:51,131 INFO L78 Accepts]: Start accepts. Automaton has 81721 states and 116376 transitions. Word has length 130 [2024-11-18 15:10:51,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:51,131 INFO L471 AbstractCegarLoop]: Abstraction has 81721 states and 116376 transitions. [2024-11-18 15:10:51,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:51,131 INFO L276 IsEmpty]: Start isEmpty. Operand 81721 states and 116376 transitions. [2024-11-18 15:10:51,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 15:10:51,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:51,144 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:51,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 15:10:51,145 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:51,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:51,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1348623976, now seen corresponding path program 1 times [2024-11-18 15:10:51,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:51,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931243036] [2024-11-18 15:10:51,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:51,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-18 15:10:51,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:51,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931243036] [2024-11-18 15:10:51,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931243036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:51,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:51,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:10:51,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703960368] [2024-11-18 15:10:51,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:51,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:10:51,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:51,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:10:51,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:10:51,845 INFO L87 Difference]: Start difference. First operand 81721 states and 116376 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:52,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:52,580 INFO L93 Difference]: Finished difference Result 212169 states and 303392 transitions. [2024-11-18 15:10:52,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:10:52,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 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 130 [2024-11-18 15:10:52,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:52,825 INFO L225 Difference]: With dead ends: 212169 [2024-11-18 15:10:52,825 INFO L226 Difference]: Without dead ends: 192647 [2024-11-18 15:10:52,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 15:10:52,895 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 2001 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2001 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:52,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2001 Valid, 2110 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:10:53,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192647 states. [2024-11-18 15:10:55,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192647 to 101241. [2024-11-18 15:10:55,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101241 states, 101240 states have (on average 1.4238640853417621) internal successors, (144152), 101240 states have internal predecessors, (144152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:55,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101241 states to 101241 states and 144152 transitions. [2024-11-18 15:10:55,278 INFO L78 Accepts]: Start accepts. Automaton has 101241 states and 144152 transitions. Word has length 130 [2024-11-18 15:10:55,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:55,278 INFO L471 AbstractCegarLoop]: Abstraction has 101241 states and 144152 transitions. [2024-11-18 15:10:55,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:55,279 INFO L276 IsEmpty]: Start isEmpty. Operand 101241 states and 144152 transitions. [2024-11-18 15:10:55,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 15:10:55,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:55,288 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:55,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 15:10:55,289 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:55,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:55,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1052578548, now seen corresponding path program 1 times [2024-11-18 15:10:55,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:55,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688623861] [2024-11-18 15:10:55,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:55,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:10:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:10:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-18 15:10:55,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:10:55,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688623861] [2024-11-18 15:10:55,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688623861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:10:55,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:10:55,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:10:55,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018284250] [2024-11-18 15:10:55,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:10:55,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:10:55,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:10:55,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:10:55,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:10:55,526 INFO L87 Difference]: Start difference. First operand 101241 states and 144152 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:56,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:10:56,841 INFO L93 Difference]: Finished difference Result 231689 states and 331168 transitions. [2024-11-18 15:10:56,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:10:56,842 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 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 130 [2024-11-18 15:10:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:10:57,155 INFO L225 Difference]: With dead ends: 231689 [2024-11-18 15:10:57,155 INFO L226 Difference]: Without dead ends: 212167 [2024-11-18 15:10:57,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 15:10:57,199 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 1746 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:10:57,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 2276 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:10:57,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212167 states. [2024-11-18 15:10:59,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212167 to 120761. [2024-11-18 15:10:59,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120761 states, 120760 states have (on average 1.4237164624047698) internal successors, (171928), 120760 states have internal predecessors, (171928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:59,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120761 states to 120761 states and 171928 transitions. [2024-11-18 15:10:59,509 INFO L78 Accepts]: Start accepts. Automaton has 120761 states and 171928 transitions. Word has length 130 [2024-11-18 15:10:59,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:10:59,510 INFO L471 AbstractCegarLoop]: Abstraction has 120761 states and 171928 transitions. [2024-11-18 15:10:59,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:10:59,510 INFO L276 IsEmpty]: Start isEmpty. Operand 120761 states and 171928 transitions. [2024-11-18 15:10:59,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 15:10:59,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:10:59,520 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:10:59,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 15:10:59,521 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:10:59,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:10:59,521 INFO L85 PathProgramCache]: Analyzing trace with hash 375918086, now seen corresponding path program 1 times [2024-11-18 15:10:59,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:10:59,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321774064] [2024-11-18 15:10:59,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:10:59,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 15:11:00,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:00,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321774064] [2024-11-18 15:11:00,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321774064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:00,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:00,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:11:00,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153990362] [2024-11-18 15:11:00,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:00,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:11:00,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:00,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:11:00,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:11:00,324 INFO L87 Difference]: Start difference. First operand 120761 states and 171928 transitions. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:01,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:01,094 INFO L93 Difference]: Finished difference Result 251209 states and 358944 transitions. [2024-11-18 15:11:01,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:11:01,095 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 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 130 [2024-11-18 15:11:01,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:01,417 INFO L225 Difference]: With dead ends: 251209 [2024-11-18 15:11:01,417 INFO L226 Difference]: Without dead ends: 231687 [2024-11-18 15:11:01,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 15:11:01,496 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 1728 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:01,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1728 Valid, 2329 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:11:01,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231687 states. [2024-11-18 15:11:04,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231687 to 140281. [2024-11-18 15:11:04,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140281 states, 140280 states have (on average 1.4236099230111205) internal successors, (199704), 140280 states have internal predecessors, (199704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:04,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140281 states to 140281 states and 199704 transitions. [2024-11-18 15:11:04,531 INFO L78 Accepts]: Start accepts. Automaton has 140281 states and 199704 transitions. Word has length 130 [2024-11-18 15:11:04,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:04,532 INFO L471 AbstractCegarLoop]: Abstraction has 140281 states and 199704 transitions. [2024-11-18 15:11:04,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:04,532 INFO L276 IsEmpty]: Start isEmpty. Operand 140281 states and 199704 transitions. [2024-11-18 15:11:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 15:11:04,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:04,544 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:04,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 15:11:04,544 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:04,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:04,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1943611776, now seen corresponding path program 1 times [2024-11-18 15:11:04,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:04,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125534840] [2024-11-18 15:11:04,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:04,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:04,862 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 15:11:04,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:04,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125534840] [2024-11-18 15:11:04,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125534840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:11:04,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:11:04,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 15:11:04,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566519108] [2024-11-18 15:11:04,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:11:04,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 15:11:04,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:04,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 15:11:04,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 15:11:04,865 INFO L87 Difference]: Start difference. First operand 140281 states and 199704 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:06,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:06,361 INFO L93 Difference]: Finished difference Result 270729 states and 386720 transitions. [2024-11-18 15:11:06,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 15:11:06,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 130 [2024-11-18 15:11:06,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:06,696 INFO L225 Difference]: With dead ends: 270729 [2024-11-18 15:11:06,696 INFO L226 Difference]: Without dead ends: 251207 [2024-11-18 15:11:06,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-18 15:11:06,770 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 1828 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:06,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 2297 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:11:06,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251207 states. [2024-11-18 15:11:09,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251207 to 159801. [2024-11-18 15:11:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159801 states, 159800 states have (on average 1.423529411764706) internal successors, (227480), 159800 states have internal predecessors, (227480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:09,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159801 states to 159801 states and 227480 transitions. [2024-11-18 15:11:09,820 INFO L78 Accepts]: Start accepts. Automaton has 159801 states and 227480 transitions. Word has length 130 [2024-11-18 15:11:09,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:11:09,821 INFO L471 AbstractCegarLoop]: Abstraction has 159801 states and 227480 transitions. [2024-11-18 15:11:09,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 159801 states and 227480 transitions. [2024-11-18 15:11:09,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-18 15:11:09,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:11:09,833 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:11:09,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 15:11:09,833 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:11:09,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:11:09,834 INFO L85 PathProgramCache]: Analyzing trace with hash 790197345, now seen corresponding path program 1 times [2024-11-18 15:11:09,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:11:09,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81775011] [2024-11-18 15:11:09,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:09,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:11:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:10,182 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:11:10,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:11:10,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81775011] [2024-11-18 15:11:10,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81775011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:11:10,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440811797] [2024-11-18 15:11:10,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:11:10,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:11:10,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:11:10,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 15:11:10,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 15:11:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:11:10,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-18 15:11:10,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:11:10,658 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 15:11:10,659 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 15:11:12,021 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 15:11:12,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440811797] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 15:11:12,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 15:11:12,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 4] total 15 [2024-11-18 15:11:12,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104053079] [2024-11-18 15:11:12,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 15:11:12,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 15:11:12,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:11:12,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 15:11:12,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-18 15:11:12,025 INFO L87 Difference]: Start difference. First operand 159801 states and 227480 transitions. Second operand has 15 states, 15 states have (on average 25.266666666666666) internal successors, (379), 15 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 15:11:18,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:11:18,519 INFO L93 Difference]: Finished difference Result 1243607 states and 1767975 transitions. [2024-11-18 15:11:18,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-18 15:11:18,520 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 25.266666666666666) internal successors, (379), 15 states have internal predecessors, (379), 0 states have call successors, (0), 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 131 [2024-11-18 15:11:18,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:11:20,183 INFO L225 Difference]: With dead ends: 1243607 [2024-11-18 15:11:20,183 INFO L226 Difference]: Without dead ends: 1130453 [2024-11-18 15:11:20,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1819 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=971, Invalid=4285, Unknown=0, NotChecked=0, Total=5256 [2024-11-18 15:11:20,427 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 4528 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4528 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 1932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:11:20,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4528 Valid, 1843 Invalid, 1932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 15:11:21,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130453 states.