./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/eca-rers2012/Problem15_label19.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 2d6129311caad436efd8aeb5ae8e8416588f34a9e58c3ca845c70b3697b0a672 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:41:22,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:41:22,902 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:41:22,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:41:22,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:41:22,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:41:22,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:41:22,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:41:22,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:41:22,936 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:41:22,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:41:22,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:41:22,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:41:22,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:41:22,938 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:41:22,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:41:22,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:41:22,938 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:41:22,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:41:22,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:41:22,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:41:22,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:41:22,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:41:22,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:41:22,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:41:22,940 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:41:22,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:41:22,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:41:22,941 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:41:22,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:41:22,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:41:22,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:41:22,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:41:22,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:41:22,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:41:22,943 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:41:22,943 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:41:22,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:41:22,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:41:22,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:41:22,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:41:22,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:41:22,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d6129311caad436efd8aeb5ae8e8416588f34a9e58c3ca845c70b3697b0a672 [2024-11-09 19:41:23,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:41:23,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:41:23,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:41:23,193 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:41:23,194 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:41:23,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label19.c [2024-11-09 19:41:24,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:41:24,763 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:41:24,764 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label19.c [2024-11-09 19:41:24,786 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab212b8e/6a27a91099f944de8cd56dd258f48dc7/FLAG639993ca8 [2024-11-09 19:41:25,056 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab212b8e/6a27a91099f944de8cd56dd258f48dc7 [2024-11-09 19:41:25,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:41:25,060 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:41:25,061 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:41:25,061 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:41:25,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:41:25,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:25,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d63e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25, skipping insertion in model container [2024-11-09 19:41:25,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:25,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:41:25,339 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/eca-rers2012/Problem15_label19.c[5585,5598] [2024-11-09 19:41:25,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:41:25,634 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:41:25,648 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/eca-rers2012/Problem15_label19.c[5585,5598] [2024-11-09 19:41:25,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:41:25,797 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:41:25,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25 WrapperNode [2024-11-09 19:41:25,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:41:25,799 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:41:25,799 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:41:25,799 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:41:25,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:25,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:25,986 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-09 19:41:25,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:41:25,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:41:25,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:41:25,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:41:25,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:25,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:26,016 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:26,071 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]. [2024-11-09 19:41:26,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:26,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:26,134 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:26,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:26,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:26,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:26,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:41:26,241 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:41:26,241 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:41:26,241 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:41:26,242 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (1/1) ... [2024-11-09 19:41:26,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:41:26,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:41:26,276 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) [2024-11-09 19:41:26,282 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 [2024-11-09 19:41:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:41:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:41:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:41:26,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:41:26,381 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:41:26,383 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:41:28,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2024-11-09 19:41:28,741 INFO L? ?]: Removed 697 outVars from TransFormulas that were not future-live. [2024-11-09 19:41:28,741 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:41:28,758 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:41:28,758 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:41:28,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:41:28 BoogieIcfgContainer [2024-11-09 19:41:28,759 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:41:28,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:41:28,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:41:28,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:41:28,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:41:25" (1/3) ... [2024-11-09 19:41:28,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ca1266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:41:28, skipping insertion in model container [2024-11-09 19:41:28,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:41:25" (2/3) ... [2024-11-09 19:41:28,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ca1266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:41:28, skipping insertion in model container [2024-11-09 19:41:28,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:41:28" (3/3) ... [2024-11-09 19:41:28,766 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label19.c [2024-11-09 19:41:28,779 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:41:28,779 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:41:28,853 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:41:28,860 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;@4a30b519, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:41:28,861 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:41:28,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 427 states, 425 states have (on average 2.3176470588235296) internal successors, (985), 426 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:28,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 19:41:28,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:28,874 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] [2024-11-09 19:41:28,874 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:28,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:28,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1459170984, now seen corresponding path program 1 times [2024-11-09 19:41:28,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:28,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972391347] [2024-11-09 19:41:28,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:28,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:29,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:41:29,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:29,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972391347] [2024-11-09 19:41:29,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972391347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:29,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:29,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:41:29,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557156190] [2024-11-09 19:41:29,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:29,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:29,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:29,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:29,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:29,307 INFO L87 Difference]: Start difference. First operand has 427 states, 425 states have (on average 2.3176470588235296) internal successors, (985), 426 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:32,320 INFO L93 Difference]: Finished difference Result 1203 states and 2865 transitions. [2024-11-09 19:41:32,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:32,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-11-09 19:41:32,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:32,335 INFO L225 Difference]: With dead ends: 1203 [2024-11-09 19:41:32,335 INFO L226 Difference]: Without dead ends: 697 [2024-11-09 19:41:32,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:32,345 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 605 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:32,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 119 Invalid, 1858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 19:41:32,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-09 19:41:32,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 687. [2024-11-09 19:41:32,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 686 states have (on average 2.392128279883382) internal successors, (1641), 686 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:32,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1641 transitions. [2024-11-09 19:41:32,404 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1641 transitions. Word has length 47 [2024-11-09 19:41:32,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:32,404 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 1641 transitions. [2024-11-09 19:41:32,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1641 transitions. [2024-11-09 19:41:32,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 19:41:32,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:32,409 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:32,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:41:32,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:32,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:32,410 INFO L85 PathProgramCache]: Analyzing trace with hash 694565745, now seen corresponding path program 1 times [2024-11-09 19:41:32,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:32,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093285060] [2024-11-09 19:41:32,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:32,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:32,714 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:41:32,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:32,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093285060] [2024-11-09 19:41:32,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093285060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:32,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:32,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:41:32,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246160237] [2024-11-09 19:41:32,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:32,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:32,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:32,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:32,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:32,720 INFO L87 Difference]: Start difference. First operand 687 states and 1641 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:34,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:34,345 INFO L93 Difference]: Finished difference Result 1688 states and 4063 transitions. [2024-11-09 19:41:34,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:34,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-11-09 19:41:34,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:34,349 INFO L225 Difference]: With dead ends: 1688 [2024-11-09 19:41:34,349 INFO L226 Difference]: Without dead ends: 1003 [2024-11-09 19:41:34,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:34,351 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 486 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:34,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 231 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:41:34,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-09 19:41:34,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 993. [2024-11-09 19:41:34,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 2.318548387096774) internal successors, (2300), 992 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:34,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 2300 transitions. [2024-11-09 19:41:34,383 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 2300 transitions. Word has length 113 [2024-11-09 19:41:34,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:34,385 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 2300 transitions. [2024-11-09 19:41:34,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:34,385 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 2300 transitions. [2024-11-09 19:41:34,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 19:41:34,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:34,391 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:34,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:41:34,391 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:34,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:34,392 INFO L85 PathProgramCache]: Analyzing trace with hash -220306904, now seen corresponding path program 1 times [2024-11-09 19:41:34,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:34,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631452802] [2024-11-09 19:41:34,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:34,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:34,508 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:41:34,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:34,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631452802] [2024-11-09 19:41:34,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631452802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:34,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:34,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:41:34,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543096126] [2024-11-09 19:41:34,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:34,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:34,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:34,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:34,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:34,510 INFO L87 Difference]: Start difference. First operand 993 states and 2300 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:35,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:35,967 INFO L93 Difference]: Finished difference Result 2586 states and 6122 transitions. [2024-11-09 19:41:35,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:35,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-11-09 19:41:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:35,974 INFO L225 Difference]: With dead ends: 2586 [2024-11-09 19:41:35,975 INFO L226 Difference]: Without dead ends: 1595 [2024-11-09 19:41:35,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:35,979 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 517 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:35,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 341 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:41:35,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2024-11-09 19:41:36,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1590. [2024-11-09 19:41:36,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 2.1271239773442416) internal successors, (3380), 1589 states have internal predecessors, (3380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:36,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 3380 transitions. [2024-11-09 19:41:36,008 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 3380 transitions. Word has length 114 [2024-11-09 19:41:36,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:36,009 INFO L471 AbstractCegarLoop]: Abstraction has 1590 states and 3380 transitions. [2024-11-09 19:41:36,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:36,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 3380 transitions. [2024-11-09 19:41:36,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 19:41:36,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:36,014 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:36,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:41:36,014 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:36,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:36,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1347327850, now seen corresponding path program 1 times [2024-11-09 19:41:36,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:36,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43684830] [2024-11-09 19:41:36,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:36,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:36,137 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:41:36,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:36,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43684830] [2024-11-09 19:41:36,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43684830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:36,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:36,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:41:36,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082012210] [2024-11-09 19:41:36,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:36,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:36,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:36,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:36,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:36,140 INFO L87 Difference]: Start difference. First operand 1590 states and 3380 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:37,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:37,549 INFO L93 Difference]: Finished difference Result 4083 states and 8897 transitions. [2024-11-09 19:41:37,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:37,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-09 19:41:37,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:37,559 INFO L225 Difference]: With dead ends: 4083 [2024-11-09 19:41:37,559 INFO L226 Difference]: Without dead ends: 2795 [2024-11-09 19:41:37,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:37,562 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 478 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:37,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 365 Invalid, 1601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:41:37,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2024-11-09 19:41:37,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2492. [2024-11-09 19:41:37,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2491 states have (on average 2.0401445202729827) internal successors, (5082), 2491 states have internal predecessors, (5082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:37,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 5082 transitions. [2024-11-09 19:41:37,604 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 5082 transitions. Word has length 118 [2024-11-09 19:41:37,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:37,605 INFO L471 AbstractCegarLoop]: Abstraction has 2492 states and 5082 transitions. [2024-11-09 19:41:37,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:37,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 5082 transitions. [2024-11-09 19:41:37,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-09 19:41:37,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:37,606 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:37,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:41:37,606 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:37,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:37,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1823017703, now seen corresponding path program 1 times [2024-11-09 19:41:37,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:37,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845852954] [2024-11-09 19:41:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:37,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:37,708 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:41:37,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:37,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845852954] [2024-11-09 19:41:37,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845852954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:37,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:37,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:41:37,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989367922] [2024-11-09 19:41:37,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:37,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:37,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:37,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:37,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:37,710 INFO L87 Difference]: Start difference. First operand 2492 states and 5082 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:39,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:39,244 INFO L93 Difference]: Finished difference Result 7384 states and 15120 transitions. [2024-11-09 19:41:39,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:39,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2024-11-09 19:41:39,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:39,257 INFO L225 Difference]: With dead ends: 7384 [2024-11-09 19:41:39,257 INFO L226 Difference]: Without dead ends: 3694 [2024-11-09 19:41:39,261 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 [2024-11-09 19:41:39,262 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 531 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:39,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 849 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:41:39,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2024-11-09 19:41:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3694. [2024-11-09 19:41:39,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3694 states, 3693 states have (on average 1.9228269699431357) internal successors, (7101), 3693 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:39,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 7101 transitions. [2024-11-09 19:41:39,318 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 7101 transitions. Word has length 139 [2024-11-09 19:41:39,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:39,320 INFO L471 AbstractCegarLoop]: Abstraction has 3694 states and 7101 transitions. [2024-11-09 19:41:39,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:39,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 7101 transitions. [2024-11-09 19:41:39,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-09 19:41:39,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:39,324 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:39,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:41:39,324 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:39,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:39,324 INFO L85 PathProgramCache]: Analyzing trace with hash 341101498, now seen corresponding path program 1 times [2024-11-09 19:41:39,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:39,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208456943] [2024-11-09 19:41:39,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:39,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:39,685 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:41:39,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:39,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208456943] [2024-11-09 19:41:39,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208456943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:39,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:39,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:41:39,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973604884] [2024-11-09 19:41:39,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:39,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:41:39,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:39,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:41:39,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:41:39,690 INFO L87 Difference]: Start difference. First operand 3694 states and 7101 transitions. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:42,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:42,036 INFO L93 Difference]: Finished difference Result 11310 states and 21799 transitions. [2024-11-09 19:41:42,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:41:42,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 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 281 [2024-11-09 19:41:42,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:42,070 INFO L225 Difference]: With dead ends: 11310 [2024-11-09 19:41:42,071 INFO L226 Difference]: Without dead ends: 7318 [2024-11-09 19:41:42,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:41:42,078 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 929 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2680 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 2970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 2680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:42,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 135 Invalid, 2970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 2680 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 19:41:42,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7318 states. [2024-11-09 19:41:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7318 to 6102. [2024-11-09 19:41:42,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6102 states, 6101 states have (on average 1.9436158006884117) internal successors, (11858), 6101 states have internal predecessors, (11858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:42,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6102 states to 6102 states and 11858 transitions. [2024-11-09 19:41:42,193 INFO L78 Accepts]: Start accepts. Automaton has 6102 states and 11858 transitions. Word has length 281 [2024-11-09 19:41:42,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:42,194 INFO L471 AbstractCegarLoop]: Abstraction has 6102 states and 11858 transitions. [2024-11-09 19:41:42,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:42,194 INFO L276 IsEmpty]: Start isEmpty. Operand 6102 states and 11858 transitions. [2024-11-09 19:41:42,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-09 19:41:42,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:42,198 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:42,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:41:42,198 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:42,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:42,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1147212246, now seen corresponding path program 1 times [2024-11-09 19:41:42,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:42,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323961179] [2024-11-09 19:41:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:42,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:42,451 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:41:42,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:42,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323961179] [2024-11-09 19:41:42,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323961179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:42,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:42,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:41:42,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86956718] [2024-11-09 19:41:42,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:42,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:42,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:42,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:42,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:42,453 INFO L87 Difference]: Start difference. First operand 6102 states and 11858 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:43,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:43,829 INFO L93 Difference]: Finished difference Result 15209 states and 29938 transitions. [2024-11-09 19:41:43,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:43,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 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 318 [2024-11-09 19:41:43,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:43,852 INFO L225 Difference]: With dead ends: 15209 [2024-11-09 19:41:43,852 INFO L226 Difference]: Without dead ends: 9109 [2024-11-09 19:41:43,858 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 [2024-11-09 19:41:43,859 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 514 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:43,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 811 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:41:43,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9109 states. [2024-11-09 19:41:44,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9109 to 9104. [2024-11-09 19:41:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9104 states, 9103 states have (on average 1.9101395144457871) internal successors, (17388), 9103 states have internal predecessors, (17388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:44,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9104 states to 9104 states and 17388 transitions. [2024-11-09 19:41:44,044 INFO L78 Accepts]: Start accepts. Automaton has 9104 states and 17388 transitions. Word has length 318 [2024-11-09 19:41:44,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:44,044 INFO L471 AbstractCegarLoop]: Abstraction has 9104 states and 17388 transitions. [2024-11-09 19:41:44,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:44,045 INFO L276 IsEmpty]: Start isEmpty. Operand 9104 states and 17388 transitions. [2024-11-09 19:41:44,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-09 19:41:44,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:44,049 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:44,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:41:44,050 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:44,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:44,050 INFO L85 PathProgramCache]: Analyzing trace with hash 663021516, now seen corresponding path program 1 times [2024-11-09 19:41:44,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:44,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140335887] [2024-11-09 19:41:44,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:44,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:44,487 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 19:41:44,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:44,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140335887] [2024-11-09 19:41:44,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140335887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:44,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:44,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:41:44,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279336485] [2024-11-09 19:41:44,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:44,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:44,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:44,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:44,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:44,489 INFO L87 Difference]: Start difference. First operand 9104 states and 17388 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:45,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:45,743 INFO L93 Difference]: Finished difference Result 18506 states and 35310 transitions. [2024-11-09 19:41:45,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:45,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 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 332 [2024-11-09 19:41:45,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:45,759 INFO L225 Difference]: With dead ends: 18506 [2024-11-09 19:41:45,759 INFO L226 Difference]: Without dead ends: 9404 [2024-11-09 19:41:45,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:45,767 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 337 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:45,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 306 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:41:45,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9404 states. [2024-11-09 19:41:45,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9404 to 9404. [2024-11-09 19:41:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9404 states, 9403 states have (on average 1.9059874508135701) internal successors, (17922), 9403 states have internal predecessors, (17922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9404 states to 9404 states and 17922 transitions. [2024-11-09 19:41:45,876 INFO L78 Accepts]: Start accepts. Automaton has 9404 states and 17922 transitions. Word has length 332 [2024-11-09 19:41:45,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:45,876 INFO L471 AbstractCegarLoop]: Abstraction has 9404 states and 17922 transitions. [2024-11-09 19:41:45,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:45,877 INFO L276 IsEmpty]: Start isEmpty. Operand 9404 states and 17922 transitions. [2024-11-09 19:41:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2024-11-09 19:41:45,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:45,881 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:45,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:41:45,881 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:45,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:45,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1288142980, now seen corresponding path program 1 times [2024-11-09 19:41:45,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:45,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207453308] [2024-11-09 19:41:45,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:45,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:46,151 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-09 19:41:46,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:46,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207453308] [2024-11-09 19:41:46,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207453308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:46,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:46,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:41:46,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656043845] [2024-11-09 19:41:46,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:46,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:46,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:46,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:46,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:46,154 INFO L87 Difference]: Start difference. First operand 9404 states and 17922 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:47,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:47,441 INFO L93 Difference]: Finished difference Result 21209 states and 40815 transitions. [2024-11-09 19:41:47,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:47,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 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 426 [2024-11-09 19:41:47,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:47,462 INFO L225 Difference]: With dead ends: 21209 [2024-11-09 19:41:47,462 INFO L226 Difference]: Without dead ends: 12107 [2024-11-09 19:41:47,466 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 [2024-11-09 19:41:47,466 INFO L432 NwaCegarLoop]: 765 mSDtfsCounter, 512 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:47,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 804 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:41:47,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12107 states. [2024-11-09 19:41:47,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12107 to 10300. [2024-11-09 19:41:47,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10300 states, 10299 states have (on average 1.904359646567628) internal successors, (19613), 10299 states have internal predecessors, (19613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:47,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10300 states to 10300 states and 19613 transitions. [2024-11-09 19:41:47,591 INFO L78 Accepts]: Start accepts. Automaton has 10300 states and 19613 transitions. Word has length 426 [2024-11-09 19:41:47,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:47,592 INFO L471 AbstractCegarLoop]: Abstraction has 10300 states and 19613 transitions. [2024-11-09 19:41:47,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:47,592 INFO L276 IsEmpty]: Start isEmpty. Operand 10300 states and 19613 transitions. [2024-11-09 19:41:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-09 19:41:47,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:47,596 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:47,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:41:47,596 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:47,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:47,596 INFO L85 PathProgramCache]: Analyzing trace with hash 791310458, now seen corresponding path program 1 times [2024-11-09 19:41:47,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:47,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109376465] [2024-11-09 19:41:47,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:47,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-09 19:41:48,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:48,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109376465] [2024-11-09 19:41:48,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109376465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:48,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:48,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:41:48,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589105242] [2024-11-09 19:41:48,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:48,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:41:48,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:48,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:41:48,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:41:48,163 INFO L87 Difference]: Start difference. First operand 10300 states and 19613 transitions. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:50,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:50,515 INFO L93 Difference]: Finished difference Result 24516 states and 46799 transitions. [2024-11-09 19:41:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:41:50,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 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 462 [2024-11-09 19:41:50,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:50,537 INFO L225 Difference]: With dead ends: 24516 [2024-11-09 19:41:50,537 INFO L226 Difference]: Without dead ends: 14218 [2024-11-09 19:41:50,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:41:50,544 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 894 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 2625 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 3034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 2625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:50,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 126 Invalid, 3034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 2625 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 19:41:50,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14218 states. [2024-11-09 19:41:50,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14218 to 10302. [2024-11-09 19:41:50,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10302 states, 10301 states have (on average 1.9026308125424716) internal successors, (19599), 10301 states have internal predecessors, (19599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:50,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10302 states to 10302 states and 19599 transitions. [2024-11-09 19:41:50,678 INFO L78 Accepts]: Start accepts. Automaton has 10302 states and 19599 transitions. Word has length 462 [2024-11-09 19:41:50,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:50,679 INFO L471 AbstractCegarLoop]: Abstraction has 10302 states and 19599 transitions. [2024-11-09 19:41:50,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:50,679 INFO L276 IsEmpty]: Start isEmpty. Operand 10302 states and 19599 transitions. [2024-11-09 19:41:50,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2024-11-09 19:41:50,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:50,685 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:50,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:41:50,685 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:50,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:50,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1036605296, now seen corresponding path program 1 times [2024-11-09 19:41:50,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:50,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102420689] [2024-11-09 19:41:50,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:50,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:51,497 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 88 proven. 247 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-09 19:41:51,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:51,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102420689] [2024-11-09 19:41:51,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102420689] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:41:51,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32173288] [2024-11-09 19:41:51,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:51,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:41:51,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:41:51,500 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) [2024-11-09 19:41:51,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:41:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:51,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:41:51,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:41:51,768 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-09 19:41:51,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:41:51,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32173288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:51,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:41:51,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 19:41:51,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413690001] [2024-11-09 19:41:51,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:51,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:51,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:51,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:51,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:41:51,771 INFO L87 Difference]: Start difference. First operand 10302 states and 19599 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:52,999 INFO L93 Difference]: Finished difference Result 25700 states and 49104 transitions. [2024-11-09 19:41:52,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:53,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 524 [2024-11-09 19:41:53,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:53,023 INFO L225 Difference]: With dead ends: 25700 [2024-11-09 19:41:53,023 INFO L226 Difference]: Without dead ends: 15700 [2024-11-09 19:41:53,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:41:53,034 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 515 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:53,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 262 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:41:53,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15700 states. [2024-11-09 19:41:53,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15700 to 13300. [2024-11-09 19:41:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13300 states, 13299 states have (on average 1.8999172870140613) internal successors, (25267), 13299 states have internal predecessors, (25267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:53,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13300 states to 13300 states and 25267 transitions. [2024-11-09 19:41:53,194 INFO L78 Accepts]: Start accepts. Automaton has 13300 states and 25267 transitions. Word has length 524 [2024-11-09 19:41:53,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:53,196 INFO L471 AbstractCegarLoop]: Abstraction has 13300 states and 25267 transitions. [2024-11-09 19:41:53,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:53,196 INFO L276 IsEmpty]: Start isEmpty. Operand 13300 states and 25267 transitions. [2024-11-09 19:41:53,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-09 19:41:53,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:53,203 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:53,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:41:53,404 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,SelfDestructingSolverStorable10 [2024-11-09 19:41:53,405 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:53,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:53,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1267547983, now seen corresponding path program 1 times [2024-11-09 19:41:53,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:53,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305160587] [2024-11-09 19:41:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:53,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:53,772 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-09 19:41:53,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:53,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305160587] [2024-11-09 19:41:53,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305160587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:53,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:53,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:41:53,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732807162] [2024-11-09 19:41:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:53,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:53,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:53,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:53,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:53,774 INFO L87 Difference]: Start difference. First operand 13300 states and 25267 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:55,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:55,112 INFO L93 Difference]: Finished difference Result 26596 states and 50534 transitions. [2024-11-09 19:41:55,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:55,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 551 [2024-11-09 19:41:55,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:55,129 INFO L225 Difference]: With dead ends: 26596 [2024-11-09 19:41:55,130 INFO L226 Difference]: Without dead ends: 13598 [2024-11-09 19:41:55,139 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 [2024-11-09 19:41:55,140 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 696 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:55,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 71 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:41:55,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13598 states. [2024-11-09 19:41:55,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13598 to 13298. [2024-11-09 19:41:55,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 1.8999022335865232) internal successors, (25263), 13297 states have internal predecessors, (25263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:55,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 25263 transitions. [2024-11-09 19:41:55,283 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 25263 transitions. Word has length 551 [2024-11-09 19:41:55,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:55,285 INFO L471 AbstractCegarLoop]: Abstraction has 13298 states and 25263 transitions. [2024-11-09 19:41:55,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:55,285 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 25263 transitions. [2024-11-09 19:41:55,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2024-11-09 19:41:55,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:55,291 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:55,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:41:55,291 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:55,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:55,292 INFO L85 PathProgramCache]: Analyzing trace with hash 421927087, now seen corresponding path program 1 times [2024-11-09 19:41:55,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:55,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930422583] [2024-11-09 19:41:55,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:55,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 88 proven. 300 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-09 19:41:56,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:56,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930422583] [2024-11-09 19:41:56,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930422583] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:41:56,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469243183] [2024-11-09 19:41:56,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:56,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:41:56,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:41:56,089 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) [2024-11-09 19:41:56,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:41:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:56,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:41:56,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:41:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-09 19:41:56,309 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:41:56,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469243183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:56,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:41:56,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 19:41:56,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995280557] [2024-11-09 19:41:56,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:56,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:56,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:56,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:56,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:41:56,311 INFO L87 Difference]: Start difference. First operand 13298 states and 25263 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:57,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:57,442 INFO L93 Difference]: Finished difference Result 26289 states and 49981 transitions. [2024-11-09 19:41:57,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:57,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 577 [2024-11-09 19:41:57,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:57,459 INFO L225 Difference]: With dead ends: 26289 [2024-11-09 19:41:57,459 INFO L226 Difference]: Without dead ends: 13293 [2024-11-09 19:41:57,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 19:41:57,468 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 533 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:57,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 750 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:41:57,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13293 states. [2024-11-09 19:41:57,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13293 to 12393. [2024-11-09 19:41:57,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12393 states, 12392 states have (on average 1.8532924467398322) internal successors, (22966), 12392 states have internal predecessors, (22966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:57,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12393 states to 12393 states and 22966 transitions. [2024-11-09 19:41:57,688 INFO L78 Accepts]: Start accepts. Automaton has 12393 states and 22966 transitions. Word has length 577 [2024-11-09 19:41:57,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:41:57,689 INFO L471 AbstractCegarLoop]: Abstraction has 12393 states and 22966 transitions. [2024-11-09 19:41:57,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:57,689 INFO L276 IsEmpty]: Start isEmpty. Operand 12393 states and 22966 transitions. [2024-11-09 19:41:57,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-11-09 19:41:57,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:41:57,694 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:41:57,708 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:41:57,895 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,SelfDestructingSolverStorable12 [2024-11-09 19:41:57,896 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:41:57,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:41:57,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1996899567, now seen corresponding path program 1 times [2024-11-09 19:41:57,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:41:57,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107932053] [2024-11-09 19:41:57,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:41:57,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:41:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:41:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-11-09 19:41:58,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:41:58,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107932053] [2024-11-09 19:41:58,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107932053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:41:58,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:41:58,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:41:58,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439862508] [2024-11-09 19:41:58,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:41:58,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:41:58,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:41:58,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:41:58,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:41:58,116 INFO L87 Difference]: Start difference. First operand 12393 states and 22966 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:41:59,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:41:59,827 INFO L93 Difference]: Finished difference Result 28683 states and 53280 transitions. [2024-11-09 19:41:59,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:41:59,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 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 625 [2024-11-09 19:41:59,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:41:59,846 INFO L225 Difference]: With dead ends: 28683 [2024-11-09 19:41:59,847 INFO L226 Difference]: Without dead ends: 16592 [2024-11-09 19:41:59,856 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 [2024-11-09 19:41:59,856 INFO L432 NwaCegarLoop]: 677 mSDtfsCounter, 519 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:41:59,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 698 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:41:59,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16592 states. [2024-11-09 19:42:00,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16592 to 14792. [2024-11-09 19:42:00,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14792 states, 14791 states have (on average 1.8488945980663918) internal successors, (27347), 14791 states have internal predecessors, (27347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14792 states to 14792 states and 27347 transitions. [2024-11-09 19:42:00,143 INFO L78 Accepts]: Start accepts. Automaton has 14792 states and 27347 transitions. Word has length 625 [2024-11-09 19:42:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:00,144 INFO L471 AbstractCegarLoop]: Abstraction has 14792 states and 27347 transitions. [2024-11-09 19:42:00,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 14792 states and 27347 transitions. [2024-11-09 19:42:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2024-11-09 19:42:00,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:00,154 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:00,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:42:00,155 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:00,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:00,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1560305526, now seen corresponding path program 1 times [2024-11-09 19:42:00,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:00,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705060530] [2024-11-09 19:42:00,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:00,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:00,604 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-11-09 19:42:00,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:00,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705060530] [2024-11-09 19:42:00,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705060530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:00,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:00,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:42:00,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968814388] [2024-11-09 19:42:00,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:00,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:42:00,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:00,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:42:00,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:00,606 INFO L87 Difference]: Start difference. First operand 14792 states and 27347 transitions. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:02,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:02,721 INFO L93 Difference]: Finished difference Result 34105 states and 63004 transitions. [2024-11-09 19:42:02,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:42:02,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 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 667 [2024-11-09 19:42:02,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:02,743 INFO L225 Difference]: With dead ends: 34105 [2024-11-09 19:42:02,743 INFO L226 Difference]: Without dead ends: 19615 [2024-11-09 19:42:02,754 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 [2024-11-09 19:42:02,755 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 470 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 1527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:02,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 828 Invalid, 1527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 19:42:02,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19615 states. [2024-11-09 19:42:02,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19615 to 19301. [2024-11-09 19:42:02,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19301 states, 19300 states have (on average 1.8381865284974093) internal successors, (35477), 19300 states have internal predecessors, (35477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:03,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19301 states to 19301 states and 35477 transitions. [2024-11-09 19:42:03,001 INFO L78 Accepts]: Start accepts. Automaton has 19301 states and 35477 transitions. Word has length 667 [2024-11-09 19:42:03,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:03,001 INFO L471 AbstractCegarLoop]: Abstraction has 19301 states and 35477 transitions. [2024-11-09 19:42:03,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:03,002 INFO L276 IsEmpty]: Start isEmpty. Operand 19301 states and 35477 transitions. [2024-11-09 19:42:03,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2024-11-09 19:42:03,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:03,009 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:03,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:42:03,009 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:03,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:03,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1811577701, now seen corresponding path program 1 times [2024-11-09 19:42:03,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:03,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941460050] [2024-11-09 19:42:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:03,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 492 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-09 19:42:03,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:03,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941460050] [2024-11-09 19:42:03,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941460050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:03,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:03,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:42:03,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644763449] [2024-11-09 19:42:03,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:03,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:42:03,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:03,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:42:03,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:03,585 INFO L87 Difference]: Start difference. First operand 19301 states and 35477 transitions. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:04,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:04,714 INFO L93 Difference]: Finished difference Result 40400 states and 74313 transitions. [2024-11-09 19:42:04,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:42:04,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 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 683 [2024-11-09 19:42:04,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:04,738 INFO L225 Difference]: With dead ends: 40400 [2024-11-09 19:42:04,738 INFO L226 Difference]: Without dead ends: 21401 [2024-11-09 19:42:04,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:04,751 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 495 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:04,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 145 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:42:04,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21401 states. [2024-11-09 19:42:04,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21401 to 21101. [2024-11-09 19:42:04,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21101 states, 21100 states have (on average 1.8306161137440757) internal successors, (38626), 21100 states have internal predecessors, (38626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:04,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21101 states to 21101 states and 38626 transitions. [2024-11-09 19:42:04,930 INFO L78 Accepts]: Start accepts. Automaton has 21101 states and 38626 transitions. Word has length 683 [2024-11-09 19:42:04,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:04,931 INFO L471 AbstractCegarLoop]: Abstraction has 21101 states and 38626 transitions. [2024-11-09 19:42:04,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 21101 states and 38626 transitions. [2024-11-09 19:42:04,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-09 19:42:04,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:04,939 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:04,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:42:04,940 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:04,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:04,940 INFO L85 PathProgramCache]: Analyzing trace with hash -576864474, now seen corresponding path program 1 times [2024-11-09 19:42:04,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:04,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218936246] [2024-11-09 19:42:04,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:04,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-09 19:42:05,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:05,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218936246] [2024-11-09 19:42:05,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218936246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:05,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:05,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:42:05,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973384476] [2024-11-09 19:42:05,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:05,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:42:05,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:05,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:42:05,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:42:05,935 INFO L87 Difference]: Start difference. First operand 21101 states and 38626 transitions. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:08,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:08,119 INFO L93 Difference]: Finished difference Result 50024 states and 91530 transitions. [2024-11-09 19:42:08,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:42:08,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 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 703 [2024-11-09 19:42:08,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:08,160 INFO L225 Difference]: With dead ends: 50024 [2024-11-09 19:42:08,160 INFO L226 Difference]: Without dead ends: 28625 [2024-11-09 19:42:08,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:42:08,176 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 1018 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 2883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:08,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 119 Invalid, 2883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 19:42:08,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28625 states. [2024-11-09 19:42:08,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28625 to 21101. [2024-11-09 19:42:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21101 states, 21100 states have (on average 1.8306161137440757) internal successors, (38626), 21100 states have internal predecessors, (38626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:08,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21101 states to 21101 states and 38626 transitions. [2024-11-09 19:42:08,503 INFO L78 Accepts]: Start accepts. Automaton has 21101 states and 38626 transitions. Word has length 703 [2024-11-09 19:42:08,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:08,503 INFO L471 AbstractCegarLoop]: Abstraction has 21101 states and 38626 transitions. [2024-11-09 19:42:08,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:08,504 INFO L276 IsEmpty]: Start isEmpty. Operand 21101 states and 38626 transitions. [2024-11-09 19:42:08,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2024-11-09 19:42:08,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:08,512 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:08,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:42:08,512 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:08,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:08,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1250498855, now seen corresponding path program 1 times [2024-11-09 19:42:08,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:08,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597809061] [2024-11-09 19:42:08,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:08,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:09,122 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-11-09 19:42:09,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:09,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597809061] [2024-11-09 19:42:09,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597809061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:09,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:09,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:42:09,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588603294] [2024-11-09 19:42:09,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:09,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:42:09,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:09,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:42:09,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:42:09,125 INFO L87 Difference]: Start difference. First operand 21101 states and 38626 transitions. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:11,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:11,334 INFO L93 Difference]: Finished difference Result 51821 states and 94787 transitions. [2024-11-09 19:42:11,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:42:11,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 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 723 [2024-11-09 19:42:11,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:11,369 INFO L225 Difference]: With dead ends: 51821 [2024-11-09 19:42:11,369 INFO L226 Difference]: Without dead ends: 30422 [2024-11-09 19:42:11,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:42:11,383 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 1013 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 2602 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 2953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 2602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:11,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 120 Invalid, 2953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 2602 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 19:42:11,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30422 states. [2024-11-09 19:42:11,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30422 to 25310. [2024-11-09 19:42:11,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25310 states, 25309 states have (on average 1.8306136157098265) internal successors, (46331), 25309 states have internal predecessors, (46331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:11,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25310 states to 25310 states and 46331 transitions. [2024-11-09 19:42:11,657 INFO L78 Accepts]: Start accepts. Automaton has 25310 states and 46331 transitions. Word has length 723 [2024-11-09 19:42:11,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:11,657 INFO L471 AbstractCegarLoop]: Abstraction has 25310 states and 46331 transitions. [2024-11-09 19:42:11,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:11,657 INFO L276 IsEmpty]: Start isEmpty. Operand 25310 states and 46331 transitions. [2024-11-09 19:42:11,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2024-11-09 19:42:11,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:11,670 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:11,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 19:42:11,670 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:11,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:11,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1050902304, now seen corresponding path program 1 times [2024-11-09 19:42:11,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:11,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460597622] [2024-11-09 19:42:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:11,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:12,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2024-11-09 19:42:12,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:12,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460597622] [2024-11-09 19:42:12,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460597622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:12,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:12,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:42:12,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206705825] [2024-11-09 19:42:12,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:12,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:42:12,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:12,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:42:12,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:12,008 INFO L87 Difference]: Start difference. First operand 25310 states and 46331 transitions. Second operand has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:13,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:13,254 INFO L93 Difference]: Finished difference Result 58734 states and 107538 transitions. [2024-11-09 19:42:13,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:42:13,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 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 817 [2024-11-09 19:42:13,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:13,290 INFO L225 Difference]: With dead ends: 58734 [2024-11-09 19:42:13,290 INFO L226 Difference]: Without dead ends: 33726 [2024-11-09 19:42:13,307 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 [2024-11-09 19:42:13,307 INFO L432 NwaCegarLoop]: 784 mSDtfsCounter, 448 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:13,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 819 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:42:13,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33726 states. [2024-11-09 19:42:13,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33726 to 32212. [2024-11-09 19:42:13,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32212 states, 32211 states have (on average 1.8259911210456055) internal successors, (58817), 32211 states have internal predecessors, (58817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:13,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32212 states to 32212 states and 58817 transitions. [2024-11-09 19:42:13,619 INFO L78 Accepts]: Start accepts. Automaton has 32212 states and 58817 transitions. Word has length 817 [2024-11-09 19:42:13,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:13,620 INFO L471 AbstractCegarLoop]: Abstraction has 32212 states and 58817 transitions. [2024-11-09 19:42:13,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:13,620 INFO L276 IsEmpty]: Start isEmpty. Operand 32212 states and 58817 transitions. [2024-11-09 19:42:13,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2024-11-09 19:42:13,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:13,637 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:13,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 19:42:13,637 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:13,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:13,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1000488304, now seen corresponding path program 1 times [2024-11-09 19:42:13,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:13,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337655868] [2024-11-09 19:42:13,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:13,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:13,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1303 backedges. 721 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2024-11-09 19:42:13,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:13,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337655868] [2024-11-09 19:42:13,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337655868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:13,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:13,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:42:13,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339431532] [2024-11-09 19:42:13,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:13,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:42:13,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:13,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:42:13,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:13,894 INFO L87 Difference]: Start difference. First operand 32212 states and 58817 transitions. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:15,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:15,259 INFO L93 Difference]: Finished difference Result 69513 states and 126834 transitions. [2024-11-09 19:42:15,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:42:15,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 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 823 [2024-11-09 19:42:15,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:15,300 INFO L225 Difference]: With dead ends: 69513 [2024-11-09 19:42:15,300 INFO L226 Difference]: Without dead ends: 34903 [2024-11-09 19:42:15,320 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 [2024-11-09 19:42:15,320 INFO L432 NwaCegarLoop]: 708 mSDtfsCounter, 378 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:15,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 735 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:42:15,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34903 states. [2024-11-09 19:42:15,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34903 to 32203. [2024-11-09 19:42:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32203 states, 32202 states have (on average 1.8188311285013352) internal successors, (58570), 32202 states have internal predecessors, (58570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:15,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32203 states to 32203 states and 58570 transitions. [2024-11-09 19:42:15,673 INFO L78 Accepts]: Start accepts. Automaton has 32203 states and 58570 transitions. Word has length 823 [2024-11-09 19:42:15,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:15,673 INFO L471 AbstractCegarLoop]: Abstraction has 32203 states and 58570 transitions. [2024-11-09 19:42:15,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:15,673 INFO L276 IsEmpty]: Start isEmpty. Operand 32203 states and 58570 transitions. [2024-11-09 19:42:15,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2024-11-09 19:42:15,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:15,686 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:15,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 19:42:15,686 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:15,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:15,687 INFO L85 PathProgramCache]: Analyzing trace with hash -232859412, now seen corresponding path program 1 times [2024-11-09 19:42:15,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:15,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743368203] [2024-11-09 19:42:15,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:15,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 700 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2024-11-09 19:42:16,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:16,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743368203] [2024-11-09 19:42:16,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743368203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:16,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:16,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:42:16,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728710811] [2024-11-09 19:42:16,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:16,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:42:16,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:16,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:42:16,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:42:16,531 INFO L87 Difference]: Start difference. First operand 32203 states and 58570 transitions. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:18,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:18,508 INFO L93 Difference]: Finished difference Result 70722 states and 128496 transitions. [2024-11-09 19:42:18,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:42:18,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 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 827 [2024-11-09 19:42:18,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:18,551 INFO L225 Difference]: With dead ends: 70722 [2024-11-09 19:42:18,552 INFO L226 Difference]: Without dead ends: 38221 [2024-11-09 19:42:18,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:42:18,571 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 1000 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 2577 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 2833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 2577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:18,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 140 Invalid, 2833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 2577 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:42:18,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38221 states. [2024-11-09 19:42:18,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38221 to 31603. [2024-11-09 19:42:18,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31603 states, 31602 states have (on average 1.8193152332130877) internal successors, (57494), 31602 states have internal predecessors, (57494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:18,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31603 states to 31603 states and 57494 transitions. [2024-11-09 19:42:18,928 INFO L78 Accepts]: Start accepts. Automaton has 31603 states and 57494 transitions. Word has length 827 [2024-11-09 19:42:18,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:18,929 INFO L471 AbstractCegarLoop]: Abstraction has 31603 states and 57494 transitions. [2024-11-09 19:42:18,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:18,929 INFO L276 IsEmpty]: Start isEmpty. Operand 31603 states and 57494 transitions. [2024-11-09 19:42:18,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 867 [2024-11-09 19:42:18,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:18,940 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:18,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 19:42:18,940 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:18,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:18,941 INFO L85 PathProgramCache]: Analyzing trace with hash 637918834, now seen corresponding path program 1 times [2024-11-09 19:42:18,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:18,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504129688] [2024-11-09 19:42:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:18,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:19,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 762 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2024-11-09 19:42:19,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:19,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504129688] [2024-11-09 19:42:19,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504129688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:19,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:19,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:42:19,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793892225] [2024-11-09 19:42:19,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:19,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:42:19,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:19,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:42:19,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:19,411 INFO L87 Difference]: Start difference. First operand 31603 states and 57494 transitions. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:20,855 INFO L93 Difference]: Finished difference Result 68933 states and 125441 transitions. [2024-11-09 19:42:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:42:20,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 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 866 [2024-11-09 19:42:20,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:20,898 INFO L225 Difference]: With dead ends: 68933 [2024-11-09 19:42:20,898 INFO L226 Difference]: Without dead ends: 37632 [2024-11-09 19:42:20,919 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 [2024-11-09 19:42:20,920 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 371 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:20,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 255 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:42:20,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37632 states. [2024-11-09 19:42:21,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37632 to 35814. [2024-11-09 19:42:21,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35814 states, 35813 states have (on average 1.8166587552006255) internal successors, (65060), 35813 states have internal predecessors, (65060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:21,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35814 states to 35814 states and 65060 transitions. [2024-11-09 19:42:21,311 INFO L78 Accepts]: Start accepts. Automaton has 35814 states and 65060 transitions. Word has length 866 [2024-11-09 19:42:21,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:21,312 INFO L471 AbstractCegarLoop]: Abstraction has 35814 states and 65060 transitions. [2024-11-09 19:42:21,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:21,312 INFO L276 IsEmpty]: Start isEmpty. Operand 35814 states and 65060 transitions. [2024-11-09 19:42:21,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1001 [2024-11-09 19:42:21,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:21,328 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:21,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 19:42:21,329 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:21,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:21,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1427757955, now seen corresponding path program 1 times [2024-11-09 19:42:21,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:21,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886808860] [2024-11-09 19:42:21,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:21,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:22,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 1028 proven. 106 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-09 19:42:22,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:22,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886808860] [2024-11-09 19:42:22,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886808860] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:42:22,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503702812] [2024-11-09 19:42:22,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:22,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:42:22,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:42:22,138 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) [2024-11-09 19:42:22,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 19:42:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:22,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 19:42:22,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:42:22,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2024-11-09 19:42:22,654 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:42:22,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503702812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:22,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:42:22,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2024-11-09 19:42:22,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986304233] [2024-11-09 19:42:22,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:22,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:42:22,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:22,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:42:22,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:42:22,657 INFO L87 Difference]: Start difference. First operand 35814 states and 65060 transitions. Second operand has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:24,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:24,753 INFO L93 Difference]: Finished difference Result 82747 states and 150086 transitions. [2024-11-09 19:42:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:42:24,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 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 1000 [2024-11-09 19:42:24,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:24,809 INFO L225 Difference]: With dead ends: 82747 [2024-11-09 19:42:24,810 INFO L226 Difference]: Without dead ends: 46935 [2024-11-09 19:42:24,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1004 GetRequests, 999 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:42:24,830 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 1038 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 2589 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 2831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 2589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:24,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 139 Invalid, 2831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 2589 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 19:42:24,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46935 states. [2024-11-09 19:42:25,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46935 to 38516. [2024-11-09 19:42:25,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38516 states, 38515 states have (on average 1.8152408152667792) internal successors, (69914), 38515 states have internal predecessors, (69914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:25,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38516 states to 38516 states and 69914 transitions. [2024-11-09 19:42:25,397 INFO L78 Accepts]: Start accepts. Automaton has 38516 states and 69914 transitions. Word has length 1000 [2024-11-09 19:42:25,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:25,398 INFO L471 AbstractCegarLoop]: Abstraction has 38516 states and 69914 transitions. [2024-11-09 19:42:25,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:25,398 INFO L276 IsEmpty]: Start isEmpty. Operand 38516 states and 69914 transitions. [2024-11-09 19:42:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2024-11-09 19:42:25,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:25,414 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:25,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 19:42:25,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:42:25,615 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:25,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:25,616 INFO L85 PathProgramCache]: Analyzing trace with hash -645388885, now seen corresponding path program 1 times [2024-11-09 19:42:25,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:25,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648659262] [2024-11-09 19:42:25,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:25,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2010 backedges. 1384 proven. 0 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2024-11-09 19:42:25,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:25,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648659262] [2024-11-09 19:42:25,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648659262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:25,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:25,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:42:25,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486553679] [2024-11-09 19:42:25,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:25,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:42:25,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:25,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:42:25,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:25,943 INFO L87 Difference]: Start difference. First operand 38516 states and 69914 transitions. Second operand has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:27,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:27,258 INFO L93 Difference]: Finished difference Result 79130 states and 143613 transitions. [2024-11-09 19:42:27,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:42:27,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 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 1038 [2024-11-09 19:42:27,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:27,303 INFO L225 Difference]: With dead ends: 79130 [2024-11-09 19:42:27,303 INFO L226 Difference]: Without dead ends: 40916 [2024-11-09 19:42:27,326 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 [2024-11-09 19:42:27,327 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 321 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:27,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 153 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:42:27,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40916 states. [2024-11-09 19:42:27,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40916 to 36416. [2024-11-09 19:42:27,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36416 states, 36415 states have (on average 1.8141974461073733) internal successors, (66064), 36415 states have internal predecessors, (66064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:27,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36416 states to 36416 states and 66064 transitions. [2024-11-09 19:42:27,937 INFO L78 Accepts]: Start accepts. Automaton has 36416 states and 66064 transitions. Word has length 1038 [2024-11-09 19:42:27,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:27,938 INFO L471 AbstractCegarLoop]: Abstraction has 36416 states and 66064 transitions. [2024-11-09 19:42:27,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:27,938 INFO L276 IsEmpty]: Start isEmpty. Operand 36416 states and 66064 transitions. [2024-11-09 19:42:27,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1068 [2024-11-09 19:42:27,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:27,965 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 19:42:27,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 19:42:27,965 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:27,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:27,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1371799021, now seen corresponding path program 1 times [2024-11-09 19:42:27,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:27,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711946622] [2024-11-09 19:42:27,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:27,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:28,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1817 backedges. 1119 proven. 0 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2024-11-09 19:42:28,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:28,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711946622] [2024-11-09 19:42:28,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711946622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:28,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:28,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:42:28,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858854417] [2024-11-09 19:42:28,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:28,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:42:28,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:28,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:42:28,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:28,581 INFO L87 Difference]: Start difference. First operand 36416 states and 66064 transitions. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:29,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:29,723 INFO L93 Difference]: Finished difference Result 73429 states and 133214 transitions. [2024-11-09 19:42:29,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:42:29,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 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 1067 [2024-11-09 19:42:29,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:29,765 INFO L225 Difference]: With dead ends: 73429 [2024-11-09 19:42:29,766 INFO L226 Difference]: Without dead ends: 37315 [2024-11-09 19:42:29,786 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 [2024-11-09 19:42:29,787 INFO L432 NwaCegarLoop]: 739 mSDtfsCounter, 546 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:29,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 779 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:42:29,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37315 states. [2024-11-09 19:42:30,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37315 to 36415. [2024-11-09 19:42:30,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36415 states, 36414 states have (on average 1.8141923436041083) internal successors, (66062), 36414 states have internal predecessors, (66062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:30,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36415 states to 36415 states and 66062 transitions. [2024-11-09 19:42:30,174 INFO L78 Accepts]: Start accepts. Automaton has 36415 states and 66062 transitions. Word has length 1067 [2024-11-09 19:42:30,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:30,175 INFO L471 AbstractCegarLoop]: Abstraction has 36415 states and 66062 transitions. [2024-11-09 19:42:30,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:30,175 INFO L276 IsEmpty]: Start isEmpty. Operand 36415 states and 66062 transitions. [2024-11-09 19:42:30,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1126 [2024-11-09 19:42:30,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:30,191 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:30,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 19:42:30,192 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:30,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:30,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1412989070, now seen corresponding path program 1 times [2024-11-09 19:42:30,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:30,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514782213] [2024-11-09 19:42:30,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:30,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:30,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2210 backedges. 1191 proven. 0 refuted. 0 times theorem prover too weak. 1019 trivial. 0 not checked. [2024-11-09 19:42:30,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:30,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514782213] [2024-11-09 19:42:30,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514782213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:30,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:30,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:42:30,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779418830] [2024-11-09 19:42:30,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:30,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:42:30,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:30,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:42:30,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:30,816 INFO L87 Difference]: Start difference. First operand 36415 states and 66062 transitions. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:32,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:32,317 INFO L93 Difference]: Finished difference Result 80958 states and 146879 transitions. [2024-11-09 19:42:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:42:32,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 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 1125 [2024-11-09 19:42:32,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:32,368 INFO L225 Difference]: With dead ends: 80958 [2024-11-09 19:42:32,368 INFO L226 Difference]: Without dead ends: 44845 [2024-11-09 19:42:32,391 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 [2024-11-09 19:42:32,391 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 494 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:32,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 178 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:42:32,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44845 states. [2024-11-09 19:42:32,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44845 to 41829. [2024-11-09 19:42:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41829 states, 41828 states have (on average 1.8135459500812852) internal successors, (75857), 41828 states have internal predecessors, (75857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:32,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41829 states to 41829 states and 75857 transitions. [2024-11-09 19:42:32,797 INFO L78 Accepts]: Start accepts. Automaton has 41829 states and 75857 transitions. Word has length 1125 [2024-11-09 19:42:32,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:32,797 INFO L471 AbstractCegarLoop]: Abstraction has 41829 states and 75857 transitions. [2024-11-09 19:42:32,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:32,797 INFO L276 IsEmpty]: Start isEmpty. Operand 41829 states and 75857 transitions. [2024-11-09 19:42:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1140 [2024-11-09 19:42:32,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:32,813 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:32,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 19:42:32,814 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:32,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:32,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1273766220, now seen corresponding path program 1 times [2024-11-09 19:42:32,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:32,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573166339] [2024-11-09 19:42:32,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:32,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1927 backedges. 1155 proven. 270 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2024-11-09 19:42:34,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:34,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573166339] [2024-11-09 19:42:34,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573166339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:42:34,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690728642] [2024-11-09 19:42:34,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:34,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:42:34,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:42:34,068 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) [2024-11-09 19:42:34,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 19:42:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:34,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 1296 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 19:42:34,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:42:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1927 backedges. 1026 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2024-11-09 19:42:35,071 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:42:35,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690728642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:35,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:42:35,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-09 19:42:35,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161430094] [2024-11-09 19:42:35,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:35,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:42:35,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:35,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:42:35,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:42:35,074 INFO L87 Difference]: Start difference. First operand 41829 states and 75857 transitions. Second operand has 4 states, 4 states have (on average 152.25) internal successors, (609), 4 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:37,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:37,603 INFO L93 Difference]: Finished difference Result 92677 states and 167918 transitions. [2024-11-09 19:42:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:42:37,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.25) internal successors, (609), 4 states have internal predecessors, (609), 0 states have call successors, (0), 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 1139 [2024-11-09 19:42:37,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:37,666 INFO L225 Difference]: With dead ends: 92677 [2024-11-09 19:42:37,667 INFO L226 Difference]: Without dead ends: 50850 [2024-11-09 19:42:37,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1142 GetRequests, 1137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:42:37,691 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 859 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 2580 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 2808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:37,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 141 Invalid, 2808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2580 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 19:42:37,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50850 states. [2024-11-09 19:42:38,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50850 to 41829. [2024-11-09 19:42:38,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41829 states, 41828 states have (on average 1.8135459500812852) internal successors, (75857), 41828 states have internal predecessors, (75857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:38,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41829 states to 41829 states and 75857 transitions. [2024-11-09 19:42:38,147 INFO L78 Accepts]: Start accepts. Automaton has 41829 states and 75857 transitions. Word has length 1139 [2024-11-09 19:42:38,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:38,148 INFO L471 AbstractCegarLoop]: Abstraction has 41829 states and 75857 transitions. [2024-11-09 19:42:38,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.25) internal successors, (609), 4 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:38,148 INFO L276 IsEmpty]: Start isEmpty. Operand 41829 states and 75857 transitions. [2024-11-09 19:42:38,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1177 [2024-11-09 19:42:38,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:38,164 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:38,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 19:42:38,365 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,SelfDestructingSolverStorable26 [2024-11-09 19:42:38,365 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:38,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:38,366 INFO L85 PathProgramCache]: Analyzing trace with hash 7023527, now seen corresponding path program 1 times [2024-11-09 19:42:38,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:38,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128090954] [2024-11-09 19:42:38,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:38,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:39,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2038 backedges. 1362 proven. 193 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-09 19:42:39,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:39,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128090954] [2024-11-09 19:42:39,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128090954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:42:39,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327881728] [2024-11-09 19:42:39,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:39,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:42:39,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:42:39,357 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) [2024-11-09 19:42:39,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 19:42:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:39,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 19:42:39,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:42:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2038 backedges. 1063 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2024-11-09 19:42:40,203 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:42:40,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327881728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:40,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:42:40,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-09 19:42:40,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284143019] [2024-11-09 19:42:40,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:40,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:42:40,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:40,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:42:40,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:42:40,206 INFO L87 Difference]: Start difference. First operand 41829 states and 75857 transitions. Second operand has 4 states, 4 states have (on average 152.25) internal successors, (609), 4 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:41,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:41,666 INFO L93 Difference]: Finished difference Result 58378 states and 105516 transitions. [2024-11-09 19:42:41,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:42:41,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.25) internal successors, (609), 4 states have internal predecessors, (609), 0 states have call successors, (0), 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 1176 [2024-11-09 19:42:41,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:41,668 INFO L225 Difference]: With dead ends: 58378 [2024-11-09 19:42:41,668 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:42:41,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1180 GetRequests, 1175 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:42:41,686 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 808 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:41,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 57 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:42:41,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:42:41,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:42:41,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:42:41,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1176 [2024-11-09 19:42:41,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:41,687 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:42:41,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.25) internal successors, (609), 4 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:42:41,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:42:41,690 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:42:41,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 19:42:41,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 19:42:41,893 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-09 19:42:41,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.