./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65159196aa732cf84d788dcb31500c216d665703806e14a7c6f7047ab62d591b --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:39:22,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:39:22,275 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:39:22,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:39:22,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:39:22,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:39:22,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:39:22,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:39:22,315 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:39:22,316 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:39:22,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:39:22,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:39:22,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:39:22,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:39:22,318 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:39:22,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:39:22,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:39:22,319 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:39:22,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:39:22,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:39:22,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:39:22,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:39:22,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:39:22,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:39:22,323 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:39:22,323 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:39:22,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:39:22,327 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:39:22,327 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:39:22,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:39:22,328 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:39:22,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:39:22,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:39:22,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:39:22,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:39:22,329 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:39:22,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:39:22,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:39:22,330 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:39:22,330 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:39:22,330 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:39:22,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:39:22,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65159196aa732cf84d788dcb31500c216d665703806e14a7c6f7047ab62d591b [2024-11-08 15:39:22,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:39:22,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:39:22,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:39:22,599 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:39:22,600 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:39:22,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c [2024-11-08 15:39:23,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:39:24,209 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:39:24,209 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c [2024-11-08 15:39:24,223 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03e6a6afa/c99dfd8eb74c43ceaede737698cab93d/FLAG356c76ea3 [2024-11-08 15:39:24,235 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03e6a6afa/c99dfd8eb74c43ceaede737698cab93d [2024-11-08 15:39:24,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:39:24,239 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:39:24,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:39:24,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:39:24,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:39:24,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b07e2b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24, skipping insertion in model container [2024-11-08 15:39:24,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:39:24,638 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c[15075,15088] [2024-11-08 15:39:24,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:39:24,651 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:39:24,709 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.BOUNDED-12.pals.c[15075,15088] [2024-11-08 15:39:24,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:39:24,735 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:39:24,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24 WrapperNode [2024-11-08 15:39:24,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:39:24,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:39:24,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:39:24,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:39:24,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,793 INFO L138 Inliner]: procedures = 25, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 398 [2024-11-08 15:39:24,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:39:24,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:39:24,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:39:24,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:39:24,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,842 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 15:39:24,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,857 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:39:24,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:39:24,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:39:24,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:39:24,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (1/1) ... [2024-11-08 15:39:24,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:39:24,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:39:24,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:39:24,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:39:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:39:24,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:39:24,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:39:24,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:39:25,066 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:39:25,068 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:39:25,526 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-08 15:39:25,526 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:39:25,545 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:39:25,546 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 15:39:25,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:39:25 BoogieIcfgContainer [2024-11-08 15:39:25,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:39:25,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:39:25,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:39:25,552 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:39:25,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:39:24" (1/3) ... [2024-11-08 15:39:25,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522be446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:39:25, skipping insertion in model container [2024-11-08 15:39:25,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:39:24" (2/3) ... [2024-11-08 15:39:25,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522be446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:39:25, skipping insertion in model container [2024-11-08 15:39:25,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:39:25" (3/3) ... [2024-11-08 15:39:25,555 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals.c [2024-11-08 15:39:25,570 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:39:25,571 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:39:25,633 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:39:25,641 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;@4420bed2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:39:25,642 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:39:25,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 96 states have (on average 1.7708333333333333) internal successors, (170), 97 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:25,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 15:39:25,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:25,655 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] [2024-11-08 15:39:25,656 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:25,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:25,661 INFO L85 PathProgramCache]: Analyzing trace with hash 203642846, now seen corresponding path program 1 times [2024-11-08 15:39:25,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:25,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691528717] [2024-11-08 15:39:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:25,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:25,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691528717] [2024-11-08 15:39:25,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691528717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:25,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:25,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:39:25,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569206794] [2024-11-08 15:39:25,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:25,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:39:25,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:26,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:39:26,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:39:26,009 INFO L87 Difference]: Start difference. First operand has 98 states, 96 states have (on average 1.7708333333333333) internal successors, (170), 97 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:26,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:26,028 INFO L93 Difference]: Finished difference Result 151 states and 254 transitions. [2024-11-08 15:39:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:39:26,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-08 15:39:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:26,036 INFO L225 Difference]: With dead ends: 151 [2024-11-08 15:39:26,036 INFO L226 Difference]: Without dead ends: 94 [2024-11-08 15:39:26,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:39:26,041 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:26,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:26,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-08 15:39:26,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-08 15:39:26,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.7526881720430108) internal successors, (163), 93 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:26,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 163 transitions. [2024-11-08 15:39:26,074 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 163 transitions. Word has length 25 [2024-11-08 15:39:26,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:26,075 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 163 transitions. [2024-11-08 15:39:26,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 163 transitions. [2024-11-08 15:39:26,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 15:39:26,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:26,078 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] [2024-11-08 15:39:26,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:39:26,078 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:26,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:26,079 INFO L85 PathProgramCache]: Analyzing trace with hash -614005604, now seen corresponding path program 1 times [2024-11-08 15:39:26,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:26,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430338413] [2024-11-08 15:39:26,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:26,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:26,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:26,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430338413] [2024-11-08 15:39:26,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430338413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:26,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:26,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:39:26,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794500378] [2024-11-08 15:39:26,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:26,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:39:26,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:26,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:39:26,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:39:26,330 INFO L87 Difference]: Start difference. First operand 94 states and 163 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:26,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:26,423 INFO L93 Difference]: Finished difference Result 146 states and 244 transitions. [2024-11-08 15:39:26,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:39:26,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-08 15:39:26,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:26,425 INFO L225 Difference]: With dead ends: 146 [2024-11-08 15:39:26,425 INFO L226 Difference]: Without dead ends: 94 [2024-11-08 15:39:26,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:39:26,427 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:26,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 599 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:39:26,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-08 15:39:26,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-08 15:39:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.3225806451612903) internal successors, (123), 93 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) [2024-11-08 15:39:26,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 123 transitions. [2024-11-08 15:39:26,435 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 123 transitions. Word has length 25 [2024-11-08 15:39:26,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:26,436 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 123 transitions. [2024-11-08 15:39:26,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:26,436 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 123 transitions. [2024-11-08 15:39:26,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 15:39:26,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:26,440 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] [2024-11-08 15:39:26,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:39:26,441 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:26,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:26,444 INFO L85 PathProgramCache]: Analyzing trace with hash 877370829, now seen corresponding path program 1 times [2024-11-08 15:39:26,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:26,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326200086] [2024-11-08 15:39:26,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:26,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:26,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:26,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326200086] [2024-11-08 15:39:26,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326200086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:26,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:26,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:39:26,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74695053] [2024-11-08 15:39:26,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:26,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:39:26,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:26,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:39:26,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:39:26,779 INFO L87 Difference]: Start difference. First operand 94 states and 123 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:27,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:27,155 INFO L93 Difference]: Finished difference Result 670 states and 1047 transitions. [2024-11-08 15:39:27,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 15:39:27,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-08 15:39:27,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:27,163 INFO L225 Difference]: With dead ends: 670 [2024-11-08 15:39:27,163 INFO L226 Difference]: Without dead ends: 622 [2024-11-08 15:39:27,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:39:27,165 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 1065 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:27,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 2253 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:39:27,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-08 15:39:27,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 140. [2024-11-08 15:39:27,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.4172661870503598) internal successors, (197), 139 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:27,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 197 transitions. [2024-11-08 15:39:27,201 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 197 transitions. Word has length 64 [2024-11-08 15:39:27,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:27,205 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 197 transitions. [2024-11-08 15:39:27,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:27,206 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 197 transitions. [2024-11-08 15:39:27,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 15:39:27,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:27,207 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:27,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:39:27,208 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:27,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:27,208 INFO L85 PathProgramCache]: Analyzing trace with hash -75917667, now seen corresponding path program 1 times [2024-11-08 15:39:27,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:27,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821995191] [2024-11-08 15:39:27,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:27,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:27,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:27,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821995191] [2024-11-08 15:39:27,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821995191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:27,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:27,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:27,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956144946] [2024-11-08 15:39:27,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:27,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:27,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:27,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:27,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:27,327 INFO L87 Difference]: Start difference. First operand 140 states and 197 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:27,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:27,347 INFO L93 Difference]: Finished difference Result 317 states and 480 transitions. [2024-11-08 15:39:27,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:27,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-08 15:39:27,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:27,349 INFO L225 Difference]: With dead ends: 317 [2024-11-08 15:39:27,349 INFO L226 Difference]: Without dead ends: 223 [2024-11-08 15:39:27,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:27,350 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 51 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 193 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 [2024-11-08 15:39:27,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 193 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:27,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-08 15:39:27,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221. [2024-11-08 15:39:27,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.4772727272727273) internal successors, (325), 220 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:27,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 325 transitions. [2024-11-08 15:39:27,395 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 325 transitions. Word has length 66 [2024-11-08 15:39:27,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:27,396 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 325 transitions. [2024-11-08 15:39:27,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:27,396 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 325 transitions. [2024-11-08 15:39:27,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 15:39:27,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:27,403 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:27,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:39:27,403 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:27,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:27,404 INFO L85 PathProgramCache]: Analyzing trace with hash -9424155, now seen corresponding path program 1 times [2024-11-08 15:39:27,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:27,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389237926] [2024-11-08 15:39:27,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:27,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:27,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:27,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:27,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389237926] [2024-11-08 15:39:27,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389237926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:27,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:27,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:39:27,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844136786] [2024-11-08 15:39:27,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:27,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:39:27,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:27,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:39:27,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:39:27,895 INFO L87 Difference]: Start difference. First operand 221 states and 325 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:28,132 INFO L93 Difference]: Finished difference Result 398 states and 605 transitions. [2024-11-08 15:39:28,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:39:28,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-08 15:39:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:28,133 INFO L225 Difference]: With dead ends: 398 [2024-11-08 15:39:28,133 INFO L226 Difference]: Without dead ends: 223 [2024-11-08 15:39:28,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:39:28,135 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 199 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:28,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 483 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:39:28,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-08 15:39:28,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221. [2024-11-08 15:39:28,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.4681818181818183) internal successors, (323), 220 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 323 transitions. [2024-11-08 15:39:28,150 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 323 transitions. Word has length 66 [2024-11-08 15:39:28,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:28,151 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 323 transitions. [2024-11-08 15:39:28,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,151 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 323 transitions. [2024-11-08 15:39:28,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 15:39:28,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:28,155 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] [2024-11-08 15:39:28,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:39:28,158 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:28,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:28,158 INFO L85 PathProgramCache]: Analyzing trace with hash -706871807, now seen corresponding path program 1 times [2024-11-08 15:39:28,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:28,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002617158] [2024-11-08 15:39:28,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:28,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:28,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:28,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:28,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002617158] [2024-11-08 15:39:28,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002617158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:28,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:28,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:39:28,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420429203] [2024-11-08 15:39:28,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:28,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:39:28,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:28,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:39:28,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:39:28,422 INFO L87 Difference]: Start difference. First operand 221 states and 323 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:28,446 INFO L93 Difference]: Finished difference Result 229 states and 332 transitions. [2024-11-08 15:39:28,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:39:28,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-08 15:39:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:28,450 INFO L225 Difference]: With dead ends: 229 [2024-11-08 15:39:28,450 INFO L226 Difference]: Without dead ends: 227 [2024-11-08 15:39:28,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:39:28,451 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:28,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 471 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:28,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-08 15:39:28,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-11-08 15:39:28,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.4513274336283186) internal successors, (328), 226 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 328 transitions. [2024-11-08 15:39:28,458 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 328 transitions. Word has length 67 [2024-11-08 15:39:28,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:28,459 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 328 transitions. [2024-11-08 15:39:28,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,459 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 328 transitions. [2024-11-08 15:39:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 15:39:28,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:28,464 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:28,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:39:28,464 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:28,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:28,465 INFO L85 PathProgramCache]: Analyzing trace with hash -227657403, now seen corresponding path program 1 times [2024-11-08 15:39:28,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:28,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321753208] [2024-11-08 15:39:28,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:28,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:28,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:28,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:28,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321753208] [2024-11-08 15:39:28,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321753208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:28,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:28,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:28,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967437451] [2024-11-08 15:39:28,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:28,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:28,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:28,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:28,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:28,576 INFO L87 Difference]: Start difference. First operand 227 states and 328 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:28,593 INFO L93 Difference]: Finished difference Result 421 states and 629 transitions. [2024-11-08 15:39:28,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:28,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 15:39:28,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:28,595 INFO L225 Difference]: With dead ends: 421 [2024-11-08 15:39:28,595 INFO L226 Difference]: Without dead ends: 321 [2024-11-08 15:39:28,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:28,596 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 67 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:28,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 263 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:28,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-08 15:39:28,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2024-11-08 15:39:28,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 318 states have (on average 1.4748427672955975) internal successors, (469), 318 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 469 transitions. [2024-11-08 15:39:28,609 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 469 transitions. Word has length 68 [2024-11-08 15:39:28,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:28,609 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 469 transitions. [2024-11-08 15:39:28,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,610 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 469 transitions. [2024-11-08 15:39:28,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 15:39:28,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:28,611 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:28,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:39:28,612 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:28,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:28,612 INFO L85 PathProgramCache]: Analyzing trace with hash -64742843, now seen corresponding path program 1 times [2024-11-08 15:39:28,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:28,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546044319] [2024-11-08 15:39:28,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:28,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:28,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:28,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:28,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546044319] [2024-11-08 15:39:28,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546044319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:28,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:28,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:28,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100593435] [2024-11-08 15:39:28,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:28,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:28,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:28,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:28,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:28,696 INFO L87 Difference]: Start difference. First operand 319 states and 469 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:28,732 INFO L93 Difference]: Finished difference Result 837 states and 1269 transitions. [2024-11-08 15:39:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:28,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 15:39:28,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:28,735 INFO L225 Difference]: With dead ends: 837 [2024-11-08 15:39:28,735 INFO L226 Difference]: Without dead ends: 566 [2024-11-08 15:39:28,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:28,736 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 65 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:28,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 269 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:28,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-08 15:39:28,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 564. [2024-11-08 15:39:28,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 563 states have (on average 1.4937833037300177) internal successors, (841), 563 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 841 transitions. [2024-11-08 15:39:28,757 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 841 transitions. Word has length 68 [2024-11-08 15:39:28,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:28,757 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 841 transitions. [2024-11-08 15:39:28,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,757 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 841 transitions. [2024-11-08 15:39:28,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 15:39:28,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:28,758 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:28,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:39:28,758 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:28,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:28,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1437375557, now seen corresponding path program 1 times [2024-11-08 15:39:28,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:28,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514384151] [2024-11-08 15:39:28,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:28,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:28,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:28,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:28,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514384151] [2024-11-08 15:39:28,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514384151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:28,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:28,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:28,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315477612] [2024-11-08 15:39:28,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:28,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:28,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:28,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:28,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:28,819 INFO L87 Difference]: Start difference. First operand 564 states and 841 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:28,846 INFO L93 Difference]: Finished difference Result 1548 states and 2343 transitions. [2024-11-08 15:39:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:28,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 15:39:28,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:28,852 INFO L225 Difference]: With dead ends: 1548 [2024-11-08 15:39:28,853 INFO L226 Difference]: Without dead ends: 1032 [2024-11-08 15:39:28,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:28,855 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 61 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:28,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 265 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:28,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2024-11-08 15:39:28,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1030. [2024-11-08 15:39:28,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1029 states have (on average 1.4936831875607386) internal successors, (1537), 1029 states have internal predecessors, (1537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1537 transitions. [2024-11-08 15:39:28,885 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1537 transitions. Word has length 68 [2024-11-08 15:39:28,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:28,887 INFO L471 AbstractCegarLoop]: Abstraction has 1030 states and 1537 transitions. [2024-11-08 15:39:28,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1537 transitions. [2024-11-08 15:39:28,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 15:39:28,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:28,888 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:28,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:39:28,888 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:28,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:28,889 INFO L85 PathProgramCache]: Analyzing trace with hash -778093243, now seen corresponding path program 1 times [2024-11-08 15:39:28,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:28,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399842750] [2024-11-08 15:39:28,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:28,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:28,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:28,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399842750] [2024-11-08 15:39:28,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399842750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:28,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:28,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:28,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619553316] [2024-11-08 15:39:28,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:28,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:28,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:28,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:28,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:28,946 INFO L87 Difference]: Start difference. First operand 1030 states and 1537 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:28,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:28,990 INFO L93 Difference]: Finished difference Result 2898 states and 4347 transitions. [2024-11-08 15:39:28,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:28,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 15:39:28,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:28,997 INFO L225 Difference]: With dead ends: 2898 [2024-11-08 15:39:28,998 INFO L226 Difference]: Without dead ends: 1916 [2024-11-08 15:39:28,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:28,999 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 59 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:29,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 267 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:29,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2024-11-08 15:39:29,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1914. [2024-11-08 15:39:29,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1913 states have (on average 1.480920020909566) internal successors, (2833), 1913 states have internal predecessors, (2833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:29,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2833 transitions. [2024-11-08 15:39:29,049 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2833 transitions. Word has length 68 [2024-11-08 15:39:29,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:29,049 INFO L471 AbstractCegarLoop]: Abstraction has 1914 states and 2833 transitions. [2024-11-08 15:39:29,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2833 transitions. [2024-11-08 15:39:29,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 15:39:29,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:29,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:29,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 15:39:29,051 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:29,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:29,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1002839621, now seen corresponding path program 1 times [2024-11-08 15:39:29,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:29,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739310888] [2024-11-08 15:39:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:29,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:29,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:29,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739310888] [2024-11-08 15:39:29,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739310888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:29,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:29,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:29,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146693469] [2024-11-08 15:39:29,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:29,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:29,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:29,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:29,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:29,129 INFO L87 Difference]: Start difference. First operand 1914 states and 2833 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:29,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:29,195 INFO L93 Difference]: Finished difference Result 5454 states and 8067 transitions. [2024-11-08 15:39:29,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:29,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 15:39:29,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:29,209 INFO L225 Difference]: With dead ends: 5454 [2024-11-08 15:39:29,209 INFO L226 Difference]: Without dead ends: 3588 [2024-11-08 15:39:29,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:29,215 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 57 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:29,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 269 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3588 states. [2024-11-08 15:39:29,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3588 to 3586. [2024-11-08 15:39:29,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3586 states, 3585 states have (on average 1.4596931659693166) internal successors, (5233), 3585 states have internal predecessors, (5233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:29,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3586 states to 3586 states and 5233 transitions. [2024-11-08 15:39:29,315 INFO L78 Accepts]: Start accepts. Automaton has 3586 states and 5233 transitions. Word has length 68 [2024-11-08 15:39:29,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:29,315 INFO L471 AbstractCegarLoop]: Abstraction has 3586 states and 5233 transitions. [2024-11-08 15:39:29,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:29,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3586 states and 5233 transitions. [2024-11-08 15:39:29,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 15:39:29,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:29,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:29,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:39:29,316 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:29,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:29,317 INFO L85 PathProgramCache]: Analyzing trace with hash 199113541, now seen corresponding path program 1 times [2024-11-08 15:39:29,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:29,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955254577] [2024-11-08 15:39:29,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:29,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:29,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:29,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955254577] [2024-11-08 15:39:29,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955254577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:29,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:29,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:29,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969989487] [2024-11-08 15:39:29,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:29,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:29,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:29,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:29,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:29,378 INFO L87 Difference]: Start difference. First operand 3586 states and 5233 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:29,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:29,539 INFO L93 Difference]: Finished difference Result 10278 states and 14931 transitions. [2024-11-08 15:39:29,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:29,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-08 15:39:29,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:29,563 INFO L225 Difference]: With dead ends: 10278 [2024-11-08 15:39:29,563 INFO L226 Difference]: Without dead ends: 6740 [2024-11-08 15:39:29,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:29,570 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 63 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:29,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 271 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:29,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6740 states. [2024-11-08 15:39:29,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6740 to 6738. [2024-11-08 15:39:29,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6738 states, 6737 states have (on average 1.4322398693780614) internal successors, (9649), 6737 states have internal predecessors, (9649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:29,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6738 states to 6738 states and 9649 transitions. [2024-11-08 15:39:29,763 INFO L78 Accepts]: Start accepts. Automaton has 6738 states and 9649 transitions. Word has length 68 [2024-11-08 15:39:29,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:29,763 INFO L471 AbstractCegarLoop]: Abstraction has 6738 states and 9649 transitions. [2024-11-08 15:39:29,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand 6738 states and 9649 transitions. [2024-11-08 15:39:29,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 15:39:29,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:29,767 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:29,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:39:29,767 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:29,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:29,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1085081155, now seen corresponding path program 1 times [2024-11-08 15:39:29,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:29,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219680826] [2024-11-08 15:39:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:29,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:29,995 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:39:29,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:29,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219680826] [2024-11-08 15:39:29,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219680826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:29,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:29,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:39:29,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637688436] [2024-11-08 15:39:29,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:29,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:39:29,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:29,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:39:29,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:39:29,998 INFO L87 Difference]: Start difference. First operand 6738 states and 9649 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 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) [2024-11-08 15:39:30,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:30,899 INFO L93 Difference]: Finished difference Result 46336 states and 66424 transitions. [2024-11-08 15:39:30,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:39:30,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 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 89 [2024-11-08 15:39:30,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:30,996 INFO L225 Difference]: With dead ends: 46336 [2024-11-08 15:39:30,996 INFO L226 Difference]: Without dead ends: 41598 [2024-11-08 15:39:31,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:39:31,011 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 885 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:31,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 1123 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:39:31,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41598 states. [2024-11-08 15:39:31,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41598 to 12466. [2024-11-08 15:39:31,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12466 states, 12465 states have (on average 1.4261532290413157) internal successors, (17777), 12465 states have internal predecessors, (17777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:31,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12466 states to 12466 states and 17777 transitions. [2024-11-08 15:39:31,819 INFO L78 Accepts]: Start accepts. Automaton has 12466 states and 17777 transitions. Word has length 89 [2024-11-08 15:39:31,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:31,820 INFO L471 AbstractCegarLoop]: Abstraction has 12466 states and 17777 transitions. [2024-11-08 15:39:31,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 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) [2024-11-08 15:39:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 12466 states and 17777 transitions. [2024-11-08 15:39:31,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 15:39:31,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:31,824 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:31,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:39:31,824 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:31,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:31,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1247995715, now seen corresponding path program 1 times [2024-11-08 15:39:31,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:31,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044279388] [2024-11-08 15:39:31,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:31,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 15:39:32,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:32,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044279388] [2024-11-08 15:39:32,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044279388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:32,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:32,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:39:32,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644609121] [2024-11-08 15:39:32,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:32,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:39:32,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:32,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:39:32,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:39:32,021 INFO L87 Difference]: Start difference. First operand 12466 states and 17777 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 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) [2024-11-08 15:39:33,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:33,108 INFO L93 Difference]: Finished difference Result 53024 states and 75960 transitions. [2024-11-08 15:39:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:39:33,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 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 89 [2024-11-08 15:39:33,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:33,197 INFO L225 Difference]: With dead ends: 53024 [2024-11-08 15:39:33,197 INFO L226 Difference]: Without dead ends: 46334 [2024-11-08 15:39:33,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:39:33,214 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 887 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:33,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 1086 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:39:33,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46334 states. [2024-11-08 15:39:34,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46334 to 21522. [2024-11-08 15:39:34,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21522 states, 21521 states have (on average 1.4222852097950838) internal successors, (30609), 21521 states have internal predecessors, (30609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21522 states to 21522 states and 30609 transitions. [2024-11-08 15:39:34,287 INFO L78 Accepts]: Start accepts. Automaton has 21522 states and 30609 transitions. Word has length 89 [2024-11-08 15:39:34,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:34,288 INFO L471 AbstractCegarLoop]: Abstraction has 21522 states and 30609 transitions. [2024-11-08 15:39:34,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 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) [2024-11-08 15:39:34,289 INFO L276 IsEmpty]: Start isEmpty. Operand 21522 states and 30609 transitions. [2024-11-08 15:39:34,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 15:39:34,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:34,293 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:34,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:39:34,293 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:34,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:34,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1544853181, now seen corresponding path program 1 times [2024-11-08 15:39:34,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:34,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466333122] [2024-11-08 15:39:34,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:34,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:34,496 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 15:39:34,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:34,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466333122] [2024-11-08 15:39:34,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466333122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:34,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:34,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:39:34,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787324931] [2024-11-08 15:39:34,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:34,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:39:34,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:34,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:39:34,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:39:34,498 INFO L87 Difference]: Start difference. First operand 21522 states and 30609 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:35,629 INFO L93 Difference]: Finished difference Result 59712 states and 85464 transitions. [2024-11-08 15:39:35,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:39:35,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-08 15:39:35,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:35,737 INFO L225 Difference]: With dead ends: 59712 [2024-11-08 15:39:35,737 INFO L226 Difference]: Without dead ends: 53022 [2024-11-08 15:39:35,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:39:35,757 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 929 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:35,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 1103 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:39:35,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53022 states. [2024-11-08 15:39:36,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53022 to 28210. [2024-11-08 15:39:36,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28210 states, 28209 states have (on average 1.4219929809635223) internal successors, (40113), 28209 states have internal predecessors, (40113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28210 states to 28210 states and 40113 transitions. [2024-11-08 15:39:36,976 INFO L78 Accepts]: Start accepts. Automaton has 28210 states and 40113 transitions. Word has length 89 [2024-11-08 15:39:36,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:36,976 INFO L471 AbstractCegarLoop]: Abstraction has 28210 states and 40113 transitions. [2024-11-08 15:39:36,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:36,977 INFO L276 IsEmpty]: Start isEmpty. Operand 28210 states and 40113 transitions. [2024-11-08 15:39:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 15:39:36,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:36,982 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:36,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:39:36,982 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:36,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:36,983 INFO L85 PathProgramCache]: Analyzing trace with hash 534645315, now seen corresponding path program 1 times [2024-11-08 15:39:36,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:36,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303864353] [2024-11-08 15:39:36,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:36,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:37,320 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 15:39:37,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:37,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303864353] [2024-11-08 15:39:37,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303864353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:37,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:37,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:39:37,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901097757] [2024-11-08 15:39:37,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:37,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:39:37,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:37,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:39:37,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:39:37,324 INFO L87 Difference]: Start difference. First operand 28210 states and 40113 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:38,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:38,516 INFO L93 Difference]: Finished difference Result 66400 states and 94968 transitions. [2024-11-08 15:39:38,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:39:38,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-08 15:39:38,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:38,671 INFO L225 Difference]: With dead ends: 66400 [2024-11-08 15:39:38,671 INFO L226 Difference]: Without dead ends: 59710 [2024-11-08 15:39:38,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:39:38,709 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 984 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:38,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 1068 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:39:38,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59710 states. [2024-11-08 15:39:39,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59710 to 34898. [2024-11-08 15:39:39,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34898 states, 34897 states have (on average 1.4218127632747801) internal successors, (49617), 34897 states have internal predecessors, (49617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:39,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34898 states to 34898 states and 49617 transitions. [2024-11-08 15:39:39,995 INFO L78 Accepts]: Start accepts. Automaton has 34898 states and 49617 transitions. Word has length 89 [2024-11-08 15:39:39,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:39,996 INFO L471 AbstractCegarLoop]: Abstraction has 34898 states and 49617 transitions. [2024-11-08 15:39:39,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:39,996 INFO L276 IsEmpty]: Start isEmpty. Operand 34898 states and 49617 transitions. [2024-11-08 15:39:40,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 15:39:40,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:40,001 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:40,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:39:40,001 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:40,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:40,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1979389117, now seen corresponding path program 1 times [2024-11-08 15:39:40,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:40,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467069272] [2024-11-08 15:39:40,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:40,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 15:39:40,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:40,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467069272] [2024-11-08 15:39:40,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467069272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:40,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:40,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:39:40,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16516983] [2024-11-08 15:39:40,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:40,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:39:40,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:40,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:39:40,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:39:40,182 INFO L87 Difference]: Start difference. First operand 34898 states and 49617 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:41,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:41,699 INFO L93 Difference]: Finished difference Result 73088 states and 104472 transitions. [2024-11-08 15:39:41,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:39:41,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-08 15:39:41,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:41,788 INFO L225 Difference]: With dead ends: 73088 [2024-11-08 15:39:41,788 INFO L226 Difference]: Without dead ends: 66398 [2024-11-08 15:39:41,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:39:41,810 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 895 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:41,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 1144 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:39:41,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66398 states. [2024-11-08 15:39:42,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66398 to 41586. [2024-11-08 15:39:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41586 states, 41585 states have (on average 1.4216905134062763) internal successors, (59121), 41585 states have internal predecessors, (59121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:42,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41586 states to 41586 states and 59121 transitions. [2024-11-08 15:39:42,953 INFO L78 Accepts]: Start accepts. Automaton has 41586 states and 59121 transitions. Word has length 89 [2024-11-08 15:39:42,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:42,953 INFO L471 AbstractCegarLoop]: Abstraction has 41586 states and 59121 transitions. [2024-11-08 15:39:42,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:42,953 INFO L276 IsEmpty]: Start isEmpty. Operand 41586 states and 59121 transitions. [2024-11-08 15:39:42,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 15:39:42,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:42,958 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:42,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:39:42,958 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:42,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:42,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1511852099, now seen corresponding path program 1 times [2024-11-08 15:39:42,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:42,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842573862] [2024-11-08 15:39:42,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:42,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:43,133 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 15:39:43,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:43,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842573862] [2024-11-08 15:39:43,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842573862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:43,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:43,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 15:39:43,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676713773] [2024-11-08 15:39:43,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:43,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:39:43,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:43,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:39:43,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:39:43,135 INFO L87 Difference]: Start difference. First operand 41586 states and 59121 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:44,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:44,743 INFO L93 Difference]: Finished difference Result 79776 states and 113976 transitions. [2024-11-08 15:39:44,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:39:44,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-08 15:39:44,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:44,848 INFO L225 Difference]: With dead ends: 79776 [2024-11-08 15:39:44,848 INFO L226 Difference]: Without dead ends: 73086 [2024-11-08 15:39:44,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:39:44,875 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 835 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:44,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 1259 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:39:44,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73086 states. [2024-11-08 15:39:46,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73086 to 48274. [2024-11-08 15:39:46,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48274 states, 48273 states have (on average 1.421602137841029) internal successors, (68625), 48273 states have internal predecessors, (68625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:46,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48274 states to 48274 states and 68625 transitions. [2024-11-08 15:39:46,157 INFO L78 Accepts]: Start accepts. Automaton has 48274 states and 68625 transitions. Word has length 89 [2024-11-08 15:39:46,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:46,158 INFO L471 AbstractCegarLoop]: Abstraction has 48274 states and 68625 transitions. [2024-11-08 15:39:46,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:46,158 INFO L276 IsEmpty]: Start isEmpty. Operand 48274 states and 68625 transitions. [2024-11-08 15:39:46,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 15:39:46,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:46,164 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:46,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:39:46,164 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:46,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:46,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1817056852, now seen corresponding path program 1 times [2024-11-08 15:39:46,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:46,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14382324] [2024-11-08 15:39:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:46,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:46,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:46,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14382324] [2024-11-08 15:39:46,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14382324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:46,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:46,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:46,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381046888] [2024-11-08 15:39:46,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:46,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:46,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:46,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:46,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:46,437 INFO L87 Difference]: Start difference. First operand 48274 states and 68625 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) [2024-11-08 15:39:47,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:47,672 INFO L93 Difference]: Finished difference Result 96502 states and 137203 transitions. [2024-11-08 15:39:47,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:47,672 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 [2024-11-08 15:39:47,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:47,724 INFO L225 Difference]: With dead ends: 96502 [2024-11-08 15:39:47,724 INFO L226 Difference]: Without dead ends: 48276 [2024-11-08 15:39:47,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:47,748 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 53 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:47,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 276 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:47,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48276 states. [2024-11-08 15:39:48,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48276 to 48274. [2024-11-08 15:39:48,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48274 states, 48273 states have (on average 1.4073498643133844) internal successors, (67937), 48273 states have internal predecessors, (67937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:48,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48274 states to 48274 states and 67937 transitions. [2024-11-08 15:39:48,975 INFO L78 Accepts]: Start accepts. Automaton has 48274 states and 67937 transitions. Word has length 90 [2024-11-08 15:39:48,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:48,975 INFO L471 AbstractCegarLoop]: Abstraction has 48274 states and 67937 transitions. [2024-11-08 15:39:48,975 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) [2024-11-08 15:39:48,976 INFO L276 IsEmpty]: Start isEmpty. Operand 48274 states and 67937 transitions. [2024-11-08 15:39:48,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 15:39:48,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:48,980 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:48,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:39:48,980 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:48,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:48,980 INFO L85 PathProgramCache]: Analyzing trace with hash -321194277, now seen corresponding path program 1 times [2024-11-08 15:39:48,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:48,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13266836] [2024-11-08 15:39:48,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:48,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:49,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:49,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13266836] [2024-11-08 15:39:49,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13266836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:49,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:49,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:49,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703891623] [2024-11-08 15:39:49,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:49,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:49,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:49,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:49,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:49,080 INFO L87 Difference]: Start difference. First operand 48274 states and 67937 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) [2024-11-08 15:39:49,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:49,502 INFO L93 Difference]: Finished difference Result 66059 states and 93161 transitions. [2024-11-08 15:39:49,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:49,502 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 [2024-11-08 15:39:49,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:49,531 INFO L225 Difference]: With dead ends: 66059 [2024-11-08 15:39:49,531 INFO L226 Difference]: Without dead ends: 17833 [2024-11-08 15:39:49,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:49,567 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 47 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:49,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 273 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:49,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17833 states. [2024-11-08 15:39:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17833 to 17825. [2024-11-08 15:39:50,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17825 states, 17824 states have (on average 1.4039497307001796) internal successors, (25024), 17824 states have internal predecessors, (25024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:50,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17825 states to 17825 states and 25024 transitions. [2024-11-08 15:39:50,428 INFO L78 Accepts]: Start accepts. Automaton has 17825 states and 25024 transitions. Word has length 91 [2024-11-08 15:39:50,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:50,429 INFO L471 AbstractCegarLoop]: Abstraction has 17825 states and 25024 transitions. [2024-11-08 15:39:50,429 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) [2024-11-08 15:39:50,429 INFO L276 IsEmpty]: Start isEmpty. Operand 17825 states and 25024 transitions. [2024-11-08 15:39:50,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 15:39:50,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:50,432 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:50,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:39:50,432 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:50,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:50,433 INFO L85 PathProgramCache]: Analyzing trace with hash -962183130, now seen corresponding path program 1 times [2024-11-08 15:39:50,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:50,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602419728] [2024-11-08 15:39:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:50,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:50,555 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:50,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:50,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602419728] [2024-11-08 15:39:50,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602419728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:50,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:50,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:50,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79508515] [2024-11-08 15:39:50,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:50,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:50,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:50,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:50,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:50,558 INFO L87 Difference]: Start difference. First operand 17825 states and 25024 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) [2024-11-08 15:39:50,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:50,908 INFO L93 Difference]: Finished difference Result 26709 states and 37506 transitions. [2024-11-08 15:39:50,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:50,909 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 [2024-11-08 15:39:50,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:50,921 INFO L225 Difference]: With dead ends: 26709 [2024-11-08 15:39:50,922 INFO L226 Difference]: Without dead ends: 8947 [2024-11-08 15:39:50,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:50,933 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 49 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:50,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 252 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:50,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8947 states. [2024-11-08 15:39:51,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8947 to 8945. [2024-11-08 15:39:51,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8945 states, 8944 states have (on average 1.389087656529517) internal successors, (12424), 8944 states have internal predecessors, (12424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8945 states to 8945 states and 12424 transitions. [2024-11-08 15:39:51,142 INFO L78 Accepts]: Start accepts. Automaton has 8945 states and 12424 transitions. Word has length 92 [2024-11-08 15:39:51,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:51,142 INFO L471 AbstractCegarLoop]: Abstraction has 8945 states and 12424 transitions. [2024-11-08 15:39:51,142 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) [2024-11-08 15:39:51,142 INFO L276 IsEmpty]: Start isEmpty. Operand 8945 states and 12424 transitions. [2024-11-08 15:39:51,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 15:39:51,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:51,144 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:51,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 15:39:51,144 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:51,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:51,145 INFO L85 PathProgramCache]: Analyzing trace with hash 32471160, now seen corresponding path program 1 times [2024-11-08 15:39:51,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:51,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766261634] [2024-11-08 15:39:51,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:51,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:51,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:51,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766261634] [2024-11-08 15:39:51,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766261634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:51,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:51,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:51,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960202608] [2024-11-08 15:39:51,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:51,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:51,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:51,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:51,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:51,244 INFO L87 Difference]: Start difference. First operand 8945 states and 12424 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:51,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:51,350 INFO L93 Difference]: Finished difference Result 13389 states and 18606 transitions. [2024-11-08 15:39:51,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:51,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 15:39:51,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:51,357 INFO L225 Difference]: With dead ends: 13389 [2024-11-08 15:39:51,357 INFO L226 Difference]: Without dead ends: 4507 [2024-11-08 15:39:51,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:51,363 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 46 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:51,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 237 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:51,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4507 states. [2024-11-08 15:39:51,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4507 to 4505. [2024-11-08 15:39:51,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4505 states, 4504 states have (on average 1.3730017761989344) internal successors, (6184), 4504 states have internal predecessors, (6184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:51,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4505 states to 4505 states and 6184 transitions. [2024-11-08 15:39:51,551 INFO L78 Accepts]: Start accepts. Automaton has 4505 states and 6184 transitions. Word has length 94 [2024-11-08 15:39:51,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:51,551 INFO L471 AbstractCegarLoop]: Abstraction has 4505 states and 6184 transitions. [2024-11-08 15:39:51,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:51,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4505 states and 6184 transitions. [2024-11-08 15:39:51,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 15:39:51,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:51,553 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:51,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 15:39:51,553 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:51,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:51,553 INFO L85 PathProgramCache]: Analyzing trace with hash 334683978, now seen corresponding path program 1 times [2024-11-08 15:39:51,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:51,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835688418] [2024-11-08 15:39:51,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:51,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:51,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:51,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835688418] [2024-11-08 15:39:51,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835688418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:51,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:51,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:51,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138432500] [2024-11-08 15:39:51,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:51,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:51,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:51,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:51,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:51,642 INFO L87 Difference]: Start difference. First operand 4505 states and 6184 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:51,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:51,719 INFO L93 Difference]: Finished difference Result 6729 states and 9246 transitions. [2024-11-08 15:39:51,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:51,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 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 [2024-11-08 15:39:51,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:51,725 INFO L225 Difference]: With dead ends: 6729 [2024-11-08 15:39:51,725 INFO L226 Difference]: Without dead ends: 2287 [2024-11-08 15:39:51,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:51,729 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 43 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:51,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 222 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:51,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2024-11-08 15:39:51,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 2285. [2024-11-08 15:39:51,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2285 states, 2284 states have (on average 1.3546409807355517) internal successors, (3094), 2284 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:51,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 3094 transitions. [2024-11-08 15:39:51,787 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 3094 transitions. Word has length 96 [2024-11-08 15:39:51,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:51,787 INFO L471 AbstractCegarLoop]: Abstraction has 2285 states and 3094 transitions. [2024-11-08 15:39:51,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 3094 transitions. [2024-11-08 15:39:51,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 15:39:51,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:51,789 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:51,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 15:39:51,790 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:51,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:51,790 INFO L85 PathProgramCache]: Analyzing trace with hash 2053215388, now seen corresponding path program 1 times [2024-11-08 15:39:51,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:51,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072523289] [2024-11-08 15:39:51,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:51,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:51,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:51,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072523289] [2024-11-08 15:39:51,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072523289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:39:51,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:39:51,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:39:51,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145297128] [2024-11-08 15:39:51,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:39:51,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:39:51,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:51,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:39:51,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:51,917 INFO L87 Difference]: Start difference. First operand 2285 states and 3094 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:51,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:51,950 INFO L93 Difference]: Finished difference Result 3399 states and 4611 transitions. [2024-11-08 15:39:51,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:39:51,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-11-08 15:39:51,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:51,954 INFO L225 Difference]: With dead ends: 3399 [2024-11-08 15:39:51,954 INFO L226 Difference]: Without dead ends: 1177 [2024-11-08 15:39:51,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:39:51,956 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 40 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:51,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 207 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:51,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2024-11-08 15:39:51,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1175. [2024-11-08 15:39:51,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 1174 states have (on average 1.332197614991482) internal successors, (1564), 1174 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1564 transitions. [2024-11-08 15:39:51,986 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1564 transitions. Word has length 98 [2024-11-08 15:39:51,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:51,986 INFO L471 AbstractCegarLoop]: Abstraction has 1175 states and 1564 transitions. [2024-11-08 15:39:51,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:51,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1564 transitions. [2024-11-08 15:39:51,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 15:39:51,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:51,987 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] [2024-11-08 15:39:51,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 15:39:51,988 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:51,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:51,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1932216210, now seen corresponding path program 1 times [2024-11-08 15:39:51,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:51,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612334374] [2024-11-08 15:39:51,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:51,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:52,128 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:39:52,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:52,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612334374] [2024-11-08 15:39:52,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612334374] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:39:52,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720967833] [2024-11-08 15:39:52,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:52,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:39:52,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:39:52,131 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) [2024-11-08 15:39:52,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:39:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:52,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 15:39:52,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:39:52,489 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:39:52,489 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:39:52,974 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 15:39:52,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720967833] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:39:52,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:39:52,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-11-08 15:39:52,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57037211] [2024-11-08 15:39:52,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:39:52,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:39:52,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:52,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:39:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:39:52,977 INFO L87 Difference]: Start difference. First operand 1175 states and 1564 transitions. Second operand has 9 states, 9 states have (on average 28.444444444444443) internal successors, (256), 9 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:53,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:53,113 INFO L93 Difference]: Finished difference Result 3830 states and 5082 transitions. [2024-11-08 15:39:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:39:53,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 28.444444444444443) internal successors, (256), 9 states have internal predecessors, (256), 0 states have call successors, (0), 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 100 [2024-11-08 15:39:53,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:53,118 INFO L225 Difference]: With dead ends: 3830 [2024-11-08 15:39:53,118 INFO L226 Difference]: Without dead ends: 2718 [2024-11-08 15:39:53,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:39:53,120 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 147 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:53,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 571 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:39:53,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2024-11-08 15:39:53,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 2627. [2024-11-08 15:39:53,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2626 states have (on average 1.2947448591012947) internal successors, (3400), 2626 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:53,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3400 transitions. [2024-11-08 15:39:53,207 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3400 transitions. Word has length 100 [2024-11-08 15:39:53,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:53,207 INFO L471 AbstractCegarLoop]: Abstraction has 2627 states and 3400 transitions. [2024-11-08 15:39:53,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 28.444444444444443) internal successors, (256), 9 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:53,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3400 transitions. [2024-11-08 15:39:53,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 15:39:53,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:53,209 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:39:53,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 15:39:53,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-08 15:39:53,410 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:53,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:53,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1462739713, now seen corresponding path program 1 times [2024-11-08 15:39:53,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:53,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995516318] [2024-11-08 15:39:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:53,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:54,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:54,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995516318] [2024-11-08 15:39:54,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995516318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:39:54,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658207657] [2024-11-08 15:39:54,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:54,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:39:54,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:39:54,281 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:39:54,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:39:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:54,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 15:39:54,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:39:55,019 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:55,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:39:56,260 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:56,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658207657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:39:56,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:39:56,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-11-08 15:39:56,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247411192] [2024-11-08 15:39:56,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:39:56,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-08 15:39:56,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:39:56,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-08 15:39:56,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2024-11-08 15:39:56,263 INFO L87 Difference]: Start difference. First operand 2627 states and 3400 transitions. Second operand has 29 states, 29 states have (on average 9.413793103448276) internal successors, (273), 28 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:58,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:39:58,205 INFO L93 Difference]: Finished difference Result 12841 states and 16716 transitions. [2024-11-08 15:39:58,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-08 15:39:58,206 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.413793103448276) internal successors, (273), 28 states have internal predecessors, (273), 0 states have call successors, (0), 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 101 [2024-11-08 15:39:58,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:39:58,218 INFO L225 Difference]: With dead ends: 12841 [2024-11-08 15:39:58,218 INFO L226 Difference]: Without dead ends: 10346 [2024-11-08 15:39:58,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=777, Invalid=3255, Unknown=0, NotChecked=0, Total=4032 [2024-11-08 15:39:58,224 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 1846 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:39:58,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 1120 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 15:39:58,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10346 states. [2024-11-08 15:39:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10346 to 10218. [2024-11-08 15:39:58,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10218 states, 10217 states have (on average 1.2766957032396986) internal successors, (13044), 10217 states have internal predecessors, (13044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:58,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10218 states to 10218 states and 13044 transitions. [2024-11-08 15:39:58,447 INFO L78 Accepts]: Start accepts. Automaton has 10218 states and 13044 transitions. Word has length 101 [2024-11-08 15:39:58,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:39:58,447 INFO L471 AbstractCegarLoop]: Abstraction has 10218 states and 13044 transitions. [2024-11-08 15:39:58,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.413793103448276) internal successors, (273), 28 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:39:58,448 INFO L276 IsEmpty]: Start isEmpty. Operand 10218 states and 13044 transitions. [2024-11-08 15:39:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 15:39:58,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:39:58,450 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] [2024-11-08 15:39:58,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 15:39:58,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-08 15:39:58,651 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:39:58,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:39:58,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1981987955, now seen corresponding path program 1 times [2024-11-08 15:39:58,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:39:58,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65030442] [2024-11-08 15:39:58,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:58,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:39:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:59,054 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:59,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:39:59,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65030442] [2024-11-08 15:39:59,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65030442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:39:59,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601774866] [2024-11-08 15:39:59,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:39:59,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:39:59,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:39:59,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:39:59,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:39:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:39:59,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 15:39:59,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:39:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:39:59,837 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:40:01,173 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:01,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601774866] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:40:01,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:40:01,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 31 [2024-11-08 15:40:01,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034765470] [2024-11-08 15:40:01,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:40:01,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 15:40:01,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:01,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 15:40:01,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2024-11-08 15:40:01,175 INFO L87 Difference]: Start difference. First operand 10218 states and 13044 transitions. Second operand has 31 states, 31 states have (on average 9.290322580645162) internal successors, (288), 31 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:03,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:03,452 INFO L93 Difference]: Finished difference Result 41646 states and 53237 transitions. [2024-11-08 15:40:03,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-08 15:40:03,452 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 9.290322580645162) internal successors, (288), 31 states have internal predecessors, (288), 0 states have call successors, (0), 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 101 [2024-11-08 15:40:03,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:03,486 INFO L225 Difference]: With dead ends: 41646 [2024-11-08 15:40:03,486 INFO L226 Difference]: Without dead ends: 31844 [2024-11-08 15:40:03,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=822, Invalid=3210, Unknown=0, NotChecked=0, Total=4032 [2024-11-08 15:40:03,499 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 2150 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2150 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:03,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2150 Valid, 1163 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 15:40:03,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31844 states. [2024-11-08 15:40:04,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31844 to 25846. [2024-11-08 15:40:04,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25846 states, 25845 states have (on average 1.2596246856258464) internal successors, (32555), 25845 states have internal predecessors, (32555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:04,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25846 states to 25846 states and 32555 transitions. [2024-11-08 15:40:04,282 INFO L78 Accepts]: Start accepts. Automaton has 25846 states and 32555 transitions. Word has length 101 [2024-11-08 15:40:04,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:04,282 INFO L471 AbstractCegarLoop]: Abstraction has 25846 states and 32555 transitions. [2024-11-08 15:40:04,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.290322580645162) internal successors, (288), 31 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:04,282 INFO L276 IsEmpty]: Start isEmpty. Operand 25846 states and 32555 transitions. [2024-11-08 15:40:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 15:40:04,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:04,284 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] [2024-11-08 15:40:04,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 15:40:04,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:40:04,485 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:04,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:04,486 INFO L85 PathProgramCache]: Analyzing trace with hash 174676076, now seen corresponding path program 1 times [2024-11-08 15:40:04,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:04,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287108676] [2024-11-08 15:40:04,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:04,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:04,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:04,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287108676] [2024-11-08 15:40:04,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287108676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:40:04,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349946877] [2024-11-08 15:40:04,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:04,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:40:04,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:40:04,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:40:04,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:40:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:05,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 15:40:05,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:40:06,200 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:06,200 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:40:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:08,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349946877] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:40:08,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:40:08,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 16] total 34 [2024-11-08 15:40:08,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097775794] [2024-11-08 15:40:08,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:40:08,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 15:40:08,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:08,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 15:40:08,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=923, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 15:40:08,195 INFO L87 Difference]: Start difference. First operand 25846 states and 32555 transitions. Second operand has 34 states, 34 states have (on average 7.323529411764706) internal successors, (249), 34 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:11,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:11,672 INFO L93 Difference]: Finished difference Result 83500 states and 105968 transitions. [2024-11-08 15:40:11,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-08 15:40:11,673 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.323529411764706) internal successors, (249), 34 states have internal predecessors, (249), 0 states have call successors, (0), 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 102 [2024-11-08 15:40:11,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:11,745 INFO L225 Difference]: With dead ends: 83500 [2024-11-08 15:40:11,745 INFO L226 Difference]: Without dead ends: 58468 [2024-11-08 15:40:11,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1406 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1279, Invalid=3833, Unknown=0, NotChecked=0, Total=5112 [2024-11-08 15:40:11,772 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 2064 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:11,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2064 Valid, 1723 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 15:40:11,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58468 states. [2024-11-08 15:40:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58468 to 32202. [2024-11-08 15:40:13,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32202 states, 32201 states have (on average 1.250768609670507) internal successors, (40276), 32201 states have internal predecessors, (40276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:13,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32202 states to 32202 states and 40276 transitions. [2024-11-08 15:40:13,067 INFO L78 Accepts]: Start accepts. Automaton has 32202 states and 40276 transitions. Word has length 102 [2024-11-08 15:40:13,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:40:13,067 INFO L471 AbstractCegarLoop]: Abstraction has 32202 states and 40276 transitions. [2024-11-08 15:40:13,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.323529411764706) internal successors, (249), 34 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:13,067 INFO L276 IsEmpty]: Start isEmpty. Operand 32202 states and 40276 transitions. [2024-11-08 15:40:13,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 15:40:13,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:40:13,070 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] [2024-11-08 15:40:13,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 15:40:13,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-08 15:40:13,270 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:40:13,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:40:13,271 INFO L85 PathProgramCache]: Analyzing trace with hash -179913597, now seen corresponding path program 1 times [2024-11-08 15:40:13,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:40:13,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795371437] [2024-11-08 15:40:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:13,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:40:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:13,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:40:13,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795371437] [2024-11-08 15:40:13,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795371437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:40:13,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661273418] [2024-11-08 15:40:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:40:13,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:40:13,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:40:13,711 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:40:13,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 15:40:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:40:13,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 15:40:13,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:40:14,245 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:14,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:40:14,960 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:40:14,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661273418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:40:14,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:40:14,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-08 15:40:14,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459910287] [2024-11-08 15:40:14,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:40:14,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 15:40:14,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:40:14,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 15:40:14,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2024-11-08 15:40:14,963 INFO L87 Difference]: Start difference. First operand 32202 states and 40276 transitions. Second operand has 25 states, 25 states have (on average 10.64) internal successors, (266), 24 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:40:19,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:40:19,087 INFO L93 Difference]: Finished difference Result 125042 states and 157093 transitions. [2024-11-08 15:40:19,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-08 15:40:19,088 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.64) internal successors, (266), 24 states have internal predecessors, (266), 0 states have call successors, (0), 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 103 [2024-11-08 15:40:19,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:40:19,211 INFO L225 Difference]: With dead ends: 125042 [2024-11-08 15:40:19,212 INFO L226 Difference]: Without dead ends: 93436 [2024-11-08 15:40:19,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=450, Invalid=1712, Unknown=0, NotChecked=0, Total=2162 [2024-11-08 15:40:19,261 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 1238 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:40:19,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 1412 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 15:40:19,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93436 states.