./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i -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 1210d8db9779caa2b34faedb9da4e6c42e2b8376c95e81a461341238221703f5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 06:25:54,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 06:25:55,014 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 06:25:55,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 06:25:55,021 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 06:25:55,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 06:25:55,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 06:25:55,044 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 06:25:55,045 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 06:25:55,045 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 06:25:55,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 06:25:55,046 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 06:25:55,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 06:25:55,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 06:25:55,046 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 06:25:55,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 06:25:55,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 06:25:55,047 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 06:25:55,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 06:25:55,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 06:25:55,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 06:25:55,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 06:25:55,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 06:25:55,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 06:25:55,054 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 06:25:55,055 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 06:25:55,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 06:25:55,055 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 06:25:55,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 06:25:55,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 06:25:55,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 06:25:55,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 06:25:55,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 06:25:55,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 06:25:55,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 06:25:55,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 06:25:55,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 06:25:55,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 06:25:55,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 06:25:55,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 06:25:55,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 06:25:55,059 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 06:25:55,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1210d8db9779caa2b34faedb9da4e6c42e2b8376c95e81a461341238221703f5 [2024-11-22 06:25:55,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 06:25:55,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 06:25:55,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 06:25:55,482 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 06:25:55,482 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 06:25:55,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i [2024-11-22 06:25:57,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 06:25:57,538 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 06:25:57,538 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i [2024-11-22 06:25:57,547 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f374b16a/3debde3715b842ceb3a828e84bf84bc5/FLAG2e7c976da [2024-11-22 06:25:57,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f374b16a/3debde3715b842ceb3a828e84bf84bc5 [2024-11-22 06:25:57,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 06:25:57,577 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 06:25:57,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 06:25:57,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 06:25:57,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 06:25:57,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:57,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@983e428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57, skipping insertion in model container [2024-11-22 06:25:57,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:57,641 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 06:25:57,828 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/hardness-nfm22/hardness_codestructure_normal_file-34.i[913,926] [2024-11-22 06:25:57,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 06:25:57,891 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 06:25:57,903 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/hardness-nfm22/hardness_codestructure_normal_file-34.i[913,926] [2024-11-22 06:25:57,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 06:25:57,947 INFO L204 MainTranslator]: Completed translation [2024-11-22 06:25:57,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57 WrapperNode [2024-11-22 06:25:57,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 06:25:57,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 06:25:57,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 06:25:57,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 06:25:57,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:57,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:58,042 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 198 [2024-11-22 06:25:58,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 06:25:58,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 06:25:58,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 06:25:58,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 06:25:58,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:58,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:58,082 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:58,126 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]. [2024-11-22 06:25:58,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:58,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:58,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:58,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:58,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:58,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:58,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 06:25:58,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 06:25:58,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 06:25:58,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 06:25:58,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (1/1) ... [2024-11-22 06:25:58,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 06:25:58,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:25:58,197 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) [2024-11-22 06:25:58,199 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 [2024-11-22 06:25:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 06:25:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 06:25:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 06:25:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 06:25:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 06:25:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 06:25:58,304 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 06:25:58,308 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 06:25:58,731 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-22 06:25:58,731 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 06:25:58,744 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 06:25:58,745 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 06:25:58,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:25:58 BoogieIcfgContainer [2024-11-22 06:25:58,746 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 06:25:58,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 06:25:58,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 06:25:58,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 06:25:58,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:25:57" (1/3) ... [2024-11-22 06:25:58,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522ba7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:25:58, skipping insertion in model container [2024-11-22 06:25:58,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:25:57" (2/3) ... [2024-11-22 06:25:58,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522ba7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:25:58, skipping insertion in model container [2024-11-22 06:25:58,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:25:58" (3/3) ... [2024-11-22 06:25:58,756 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-34.i [2024-11-22 06:25:58,770 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 06:25:58,770 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 06:25:58,833 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 06:25:58,839 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;@8f1aacd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 06:25:58,842 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 06:25:58,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 60 states have (on average 1.45) internal successors, (87), 61 states have internal predecessors, (87), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:25:58,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-22 06:25:58,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:25:58,859 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:25:58,860 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:25:58,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:25:58,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1460380449, now seen corresponding path program 1 times [2024-11-22 06:25:58,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:25:58,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62946552] [2024-11-22 06:25:58,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:25:58,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:25:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:25:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-22 06:25:59,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:25:59,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62946552] [2024-11-22 06:25:59,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62946552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 06:25:59,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569497814] [2024-11-22 06:25:59,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:25:59,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 06:25:59,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 06:25:59,114 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) [2024-11-22 06:25:59,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 06:25:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:25:59,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 06:25:59,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 06:25:59,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-22 06:25:59,308 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 06:25:59,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569497814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:25:59,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 06:25:59,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 06:25:59,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61824927] [2024-11-22 06:25:59,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:25:59,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 06:25:59,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:25:59,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 06:25:59,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 06:25:59,348 INFO L87 Difference]: Start difference. First operand has 90 states, 60 states have (on average 1.45) internal successors, (87), 61 states have internal predecessors, (87), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-22 06:25:59,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:25:59,375 INFO L93 Difference]: Finished difference Result 173 states and 303 transitions. [2024-11-22 06:25:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 06:25:59,379 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 169 [2024-11-22 06:25:59,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:25:59,390 INFO L225 Difference]: With dead ends: 173 [2024-11-22 06:25:59,390 INFO L226 Difference]: Without dead ends: 86 [2024-11-22 06:25:59,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 06:25:59,400 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:25:59,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:25:59,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-22 06:25:59,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-22 06:25:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 57 states have internal predecessors, (80), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:25:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 134 transitions. [2024-11-22 06:25:59,511 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 134 transitions. Word has length 169 [2024-11-22 06:25:59,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:25:59,512 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 134 transitions. [2024-11-22 06:25:59,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-22 06:25:59,512 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 134 transitions. [2024-11-22 06:25:59,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-22 06:25:59,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:25:59,515 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:25:59,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 06:25:59,715 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,SelfDestructingSolverStorable0 [2024-11-22 06:25:59,716 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:25:59,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:25:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1344222045, now seen corresponding path program 1 times [2024-11-22 06:25:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:25:59,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085937605] [2024-11-22 06:25:59,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:25:59,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:25:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:25:59,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:25:59,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:25:59,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085937605] [2024-11-22 06:25:59,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085937605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:25:59,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:25:59,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 06:25:59,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785200287] [2024-11-22 06:25:59,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:25:59,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 06:25:59,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:25:59,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 06:25:59,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 06:25:59,952 INFO L87 Difference]: Start difference. First operand 86 states and 134 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:25:59,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:25:59,995 INFO L93 Difference]: Finished difference Result 206 states and 322 transitions. [2024-11-22 06:25:59,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 06:25:59,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 169 [2024-11-22 06:25:59,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:00,001 INFO L225 Difference]: With dead ends: 206 [2024-11-22 06:26:00,001 INFO L226 Difference]: Without dead ends: 123 [2024-11-22 06:26:00,002 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 [2024-11-22 06:26:00,003 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 53 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:00,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 260 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 06:26:00,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-22 06:26:00,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 90. [2024-11-22 06:26:00,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 61 states have internal predecessors, (87), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:26:00,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 141 transitions. [2024-11-22 06:26:00,025 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 141 transitions. Word has length 169 [2024-11-22 06:26:00,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:00,031 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 141 transitions. [2024-11-22 06:26:00,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 141 transitions. [2024-11-22 06:26:00,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-22 06:26:00,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:00,039 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:00,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 06:26:00,042 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:00,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:00,043 INFO L85 PathProgramCache]: Analyzing trace with hash 757416031, now seen corresponding path program 1 times [2024-11-22 06:26:00,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:00,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103010833] [2024-11-22 06:26:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:00,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:01,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:01,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:01,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103010833] [2024-11-22 06:26:01,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103010833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:01,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:01,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 06:26:01,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021725542] [2024-11-22 06:26:01,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:01,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 06:26:01,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:01,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 06:26:01,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:26:01,303 INFO L87 Difference]: Start difference. First operand 90 states and 141 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:01,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:01,608 INFO L93 Difference]: Finished difference Result 279 states and 430 transitions. [2024-11-22 06:26:01,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:26:01,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 169 [2024-11-22 06:26:01,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:01,612 INFO L225 Difference]: With dead ends: 279 [2024-11-22 06:26:01,613 INFO L226 Difference]: Without dead ends: 192 [2024-11-22 06:26:01,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:26:01,615 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 179 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:01,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 472 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 06:26:01,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-22 06:26:01,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 108. [2024-11-22 06:26:01,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 79 states have (on average 1.4683544303797469) internal successors, (116), 79 states have internal predecessors, (116), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:26:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 170 transitions. [2024-11-22 06:26:01,629 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 170 transitions. Word has length 169 [2024-11-22 06:26:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:01,629 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 170 transitions. [2024-11-22 06:26:01,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:01,630 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 170 transitions. [2024-11-22 06:26:01,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-22 06:26:01,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:01,632 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:01,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 06:26:01,632 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:01,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:01,633 INFO L85 PathProgramCache]: Analyzing trace with hash -253701219, now seen corresponding path program 1 times [2024-11-22 06:26:01,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:01,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773625291] [2024-11-22 06:26:01,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:01,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:02,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:02,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:02,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773625291] [2024-11-22 06:26:02,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773625291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:02,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:02,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 06:26:02,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991571227] [2024-11-22 06:26:02,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:02,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 06:26:02,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:02,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 06:26:02,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 06:26:02,194 INFO L87 Difference]: Start difference. First operand 108 states and 170 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:02,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:02,477 INFO L93 Difference]: Finished difference Result 280 states and 436 transitions. [2024-11-22 06:26:02,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 06:26:02,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 169 [2024-11-22 06:26:02,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:02,485 INFO L225 Difference]: With dead ends: 280 [2024-11-22 06:26:02,485 INFO L226 Difference]: Without dead ends: 175 [2024-11-22 06:26:02,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:26:02,490 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 96 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:02,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 522 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 06:26:02,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-22 06:26:02,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 108. [2024-11-22 06:26:02,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 79 states have (on average 1.4683544303797469) internal successors, (116), 79 states have internal predecessors, (116), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:26:02,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 170 transitions. [2024-11-22 06:26:02,510 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 170 transitions. Word has length 169 [2024-11-22 06:26:02,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:02,511 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 170 transitions. [2024-11-22 06:26:02,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:02,512 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 170 transitions. [2024-11-22 06:26:02,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 06:26:02,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:02,516 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:02,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 06:26:02,516 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:02,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:02,517 INFO L85 PathProgramCache]: Analyzing trace with hash 526320473, now seen corresponding path program 1 times [2024-11-22 06:26:02,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:02,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781908234] [2024-11-22 06:26:02,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:02,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:06,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:06,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:06,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781908234] [2024-11-22 06:26:06,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781908234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:06,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:06,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 06:26:06,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131910349] [2024-11-22 06:26:06,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:06,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 06:26:06,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:06,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 06:26:06,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-22 06:26:06,174 INFO L87 Difference]: Start difference. First operand 108 states and 170 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:07,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:07,310 INFO L93 Difference]: Finished difference Result 300 states and 463 transitions. [2024-11-22 06:26:07,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 06:26:07,311 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-11-22 06:26:07,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:07,312 INFO L225 Difference]: With dead ends: 300 [2024-11-22 06:26:07,312 INFO L226 Difference]: Without dead ends: 195 [2024-11-22 06:26:07,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:26:07,314 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 144 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:07,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 614 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 06:26:07,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-22 06:26:07,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 119. [2024-11-22 06:26:07,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 90 states have (on average 1.5) internal successors, (135), 90 states have internal predecessors, (135), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:26:07,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 189 transitions. [2024-11-22 06:26:07,324 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 189 transitions. Word has length 170 [2024-11-22 06:26:07,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:07,325 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 189 transitions. [2024-11-22 06:26:07,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 189 transitions. [2024-11-22 06:26:07,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 06:26:07,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:07,330 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:07,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 06:26:07,330 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:07,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:07,331 INFO L85 PathProgramCache]: Analyzing trace with hash -283026153, now seen corresponding path program 1 times [2024-11-22 06:26:07,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:07,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281992295] [2024-11-22 06:26:07,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:07,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:09,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:09,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:09,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281992295] [2024-11-22 06:26:09,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281992295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:09,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:09,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 06:26:09,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584286928] [2024-11-22 06:26:09,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:09,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 06:26:09,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:09,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 06:26:09,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:26:09,828 INFO L87 Difference]: Start difference. First operand 119 states and 189 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:10,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:10,672 INFO L93 Difference]: Finished difference Result 367 states and 567 transitions. [2024-11-22 06:26:10,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:26:10,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-11-22 06:26:10,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:10,679 INFO L225 Difference]: With dead ends: 367 [2024-11-22 06:26:10,680 INFO L226 Difference]: Without dead ends: 251 [2024-11-22 06:26:10,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:26:10,682 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 322 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:10,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 551 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 06:26:10,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-22 06:26:10,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 140. [2024-11-22 06:26:10,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 111 states have (on average 1.5135135135135136) internal successors, (168), 111 states have internal predecessors, (168), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:26:10,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 222 transitions. [2024-11-22 06:26:10,697 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 222 transitions. Word has length 170 [2024-11-22 06:26:10,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:10,698 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 222 transitions. [2024-11-22 06:26:10,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:10,698 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 222 transitions. [2024-11-22 06:26:10,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 06:26:10,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:10,704 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:10,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 06:26:10,704 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:10,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:10,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1294143403, now seen corresponding path program 1 times [2024-11-22 06:26:10,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:10,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345105137] [2024-11-22 06:26:10,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:10,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:12,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:12,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:12,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345105137] [2024-11-22 06:26:12,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345105137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:12,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:12,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 06:26:12,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720375518] [2024-11-22 06:26:12,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:12,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 06:26:12,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:12,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 06:26:12,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:26:12,288 INFO L87 Difference]: Start difference. First operand 140 states and 222 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:13,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:13,889 INFO L93 Difference]: Finished difference Result 374 states and 580 transitions. [2024-11-22 06:26:13,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:26:13,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-11-22 06:26:13,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:13,892 INFO L225 Difference]: With dead ends: 374 [2024-11-22 06:26:13,892 INFO L226 Difference]: Without dead ends: 237 [2024-11-22 06:26:13,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:26:13,893 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 148 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:13,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 754 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 06:26:13,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-22 06:26:13,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 140. [2024-11-22 06:26:13,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 111 states have (on average 1.5135135135135136) internal successors, (168), 111 states have internal predecessors, (168), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 06:26:13,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 222 transitions. [2024-11-22 06:26:13,900 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 222 transitions. Word has length 170 [2024-11-22 06:26:13,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:13,900 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 222 transitions. [2024-11-22 06:26:13,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:13,901 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 222 transitions. [2024-11-22 06:26:13,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 06:26:13,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:13,902 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:13,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 06:26:13,903 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:13,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:13,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1562889831, now seen corresponding path program 1 times [2024-11-22 06:26:13,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:13,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649414344] [2024-11-22 06:26:13,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:13,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:14,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:14,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649414344] [2024-11-22 06:26:14,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649414344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:14,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:14,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 06:26:14,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423991083] [2024-11-22 06:26:14,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:14,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 06:26:14,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:14,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 06:26:14,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:26:14,080 INFO L87 Difference]: Start difference. First operand 140 states and 222 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:14,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:14,225 INFO L93 Difference]: Finished difference Result 330 states and 520 transitions. [2024-11-22 06:26:14,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 06:26:14,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-11-22 06:26:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:14,227 INFO L225 Difference]: With dead ends: 330 [2024-11-22 06:26:14,227 INFO L226 Difference]: Without dead ends: 193 [2024-11-22 06:26:14,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 06:26:14,228 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 66 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:14,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 352 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 06:26:14,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-22 06:26:14,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2024-11-22 06:26:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 156 states have (on average 1.5064102564102564) internal successors, (235), 157 states have internal predecessors, (235), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:26:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 297 transitions. [2024-11-22 06:26:14,241 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 297 transitions. Word has length 170 [2024-11-22 06:26:14,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:14,241 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 297 transitions. [2024-11-22 06:26:14,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:14,242 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 297 transitions. [2024-11-22 06:26:14,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 06:26:14,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:14,243 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:14,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 06:26:14,243 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:14,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:14,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1398147195, now seen corresponding path program 1 times [2024-11-22 06:26:14,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:14,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485667709] [2024-11-22 06:26:14,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:14,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:15,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:15,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:15,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485667709] [2024-11-22 06:26:15,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485667709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:15,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:15,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:26:15,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234304789] [2024-11-22 06:26:15,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:15,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:26:15,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:15,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:26:15,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:26:15,465 INFO L87 Difference]: Start difference. First operand 190 states and 297 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:15,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:15,788 INFO L93 Difference]: Finished difference Result 484 states and 746 transitions. [2024-11-22 06:26:15,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:26:15,789 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-11-22 06:26:15,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:15,791 INFO L225 Difference]: With dead ends: 484 [2024-11-22 06:26:15,791 INFO L226 Difference]: Without dead ends: 297 [2024-11-22 06:26:15,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:26:15,792 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 222 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:15,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 621 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 06:26:15,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-22 06:26:15,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 193. [2024-11-22 06:26:15,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 159 states have (on average 1.490566037735849) internal successors, (237), 160 states have internal predecessors, (237), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:26:15,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 299 transitions. [2024-11-22 06:26:15,799 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 299 transitions. Word has length 170 [2024-11-22 06:26:15,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:15,799 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 299 transitions. [2024-11-22 06:26:15,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:15,799 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 299 transitions. [2024-11-22 06:26:15,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 06:26:15,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:15,800 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:15,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 06:26:15,801 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:15,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:15,801 INFO L85 PathProgramCache]: Analyzing trace with hash 387029945, now seen corresponding path program 1 times [2024-11-22 06:26:15,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:15,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991072514] [2024-11-22 06:26:15,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:16,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:16,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991072514] [2024-11-22 06:26:16,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991072514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:16,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:16,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:26:16,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891629288] [2024-11-22 06:26:16,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:16,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:26:16,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:16,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:26:16,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:26:16,291 INFO L87 Difference]: Start difference. First operand 193 states and 299 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:16,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:16,639 INFO L93 Difference]: Finished difference Result 470 states and 720 transitions. [2024-11-22 06:26:16,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:26:16,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 170 [2024-11-22 06:26:16,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:16,643 INFO L225 Difference]: With dead ends: 470 [2024-11-22 06:26:16,643 INFO L226 Difference]: Without dead ends: 280 [2024-11-22 06:26:16,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:26:16,646 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 162 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:16,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 520 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 06:26:16,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-22 06:26:16,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 193. [2024-11-22 06:26:16,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 159 states have (on average 1.490566037735849) internal successors, (237), 160 states have internal predecessors, (237), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:26:16,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 299 transitions. [2024-11-22 06:26:16,655 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 299 transitions. Word has length 170 [2024-11-22 06:26:16,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:16,656 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 299 transitions. [2024-11-22 06:26:16,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:16,657 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 299 transitions. [2024-11-22 06:26:16,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-22 06:26:16,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:16,659 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:16,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 06:26:16,659 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:16,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:16,662 INFO L85 PathProgramCache]: Analyzing trace with hash 151129909, now seen corresponding path program 1 times [2024-11-22 06:26:16,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:16,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111485359] [2024-11-22 06:26:16,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:16,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:16,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:16,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:16,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111485359] [2024-11-22 06:26:16,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111485359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:16,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:16,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 06:26:16,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123073174] [2024-11-22 06:26:16,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:16,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 06:26:16,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:16,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 06:26:16,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:26:16,745 INFO L87 Difference]: Start difference. First operand 193 states and 299 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:16,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:16,857 INFO L93 Difference]: Finished difference Result 388 states and 601 transitions. [2024-11-22 06:26:16,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 06:26:16,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-11-22 06:26:16,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:16,860 INFO L225 Difference]: With dead ends: 388 [2024-11-22 06:26:16,860 INFO L226 Difference]: Without dead ends: 198 [2024-11-22 06:26:16,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 06:26:16,861 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 64 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:16,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 375 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 06:26:16,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-22 06:26:16,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 193. [2024-11-22 06:26:16,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 159 states have (on average 1.490566037735849) internal successors, (237), 160 states have internal predecessors, (237), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:26:16,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 299 transitions. [2024-11-22 06:26:16,872 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 299 transitions. Word has length 171 [2024-11-22 06:26:16,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:16,873 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 299 transitions. [2024-11-22 06:26:16,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:16,873 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 299 transitions. [2024-11-22 06:26:16,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-22 06:26:16,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:16,875 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:16,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 06:26:16,878 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:16,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:16,879 INFO L85 PathProgramCache]: Analyzing trace with hash 78186743, now seen corresponding path program 1 times [2024-11-22 06:26:16,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:16,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401315017] [2024-11-22 06:26:16,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:16,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:20,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:20,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:20,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401315017] [2024-11-22 06:26:20,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401315017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:20,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:20,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 06:26:20,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873152774] [2024-11-22 06:26:20,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:20,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 06:26:20,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:20,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 06:26:20,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:26:20,282 INFO L87 Difference]: Start difference. First operand 193 states and 299 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:22,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:22,329 INFO L93 Difference]: Finished difference Result 477 states and 723 transitions. [2024-11-22 06:26:22,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 06:26:22,334 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-11-22 06:26:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:22,335 INFO L225 Difference]: With dead ends: 477 [2024-11-22 06:26:22,335 INFO L226 Difference]: Without dead ends: 287 [2024-11-22 06:26:22,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2024-11-22 06:26:22,336 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 332 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:22,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 991 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 06:26:22,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-22 06:26:22,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 191. [2024-11-22 06:26:22,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 157 states have (on average 1.484076433121019) internal successors, (233), 158 states have internal predecessors, (233), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:26:22,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 295 transitions. [2024-11-22 06:26:22,355 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 295 transitions. Word has length 171 [2024-11-22 06:26:22,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:22,356 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 295 transitions. [2024-11-22 06:26:22,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:22,356 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 295 transitions. [2024-11-22 06:26:22,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-22 06:26:22,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:22,357 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:22,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 06:26:22,358 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:22,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:22,359 INFO L85 PathProgramCache]: Analyzing trace with hash -731159883, now seen corresponding path program 1 times [2024-11-22 06:26:22,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:22,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279394769] [2024-11-22 06:26:22,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:22,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:24,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:24,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279394769] [2024-11-22 06:26:24,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279394769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:24,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:24,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 06:26:24,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304542948] [2024-11-22 06:26:24,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:24,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 06:26:24,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:24,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 06:26:24,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:26:24,694 INFO L87 Difference]: Start difference. First operand 191 states and 295 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:25,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:25,476 INFO L93 Difference]: Finished difference Result 457 states and 694 transitions. [2024-11-22 06:26:25,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 06:26:25,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-11-22 06:26:25,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:25,478 INFO L225 Difference]: With dead ends: 457 [2024-11-22 06:26:25,478 INFO L226 Difference]: Without dead ends: 269 [2024-11-22 06:26:25,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-22 06:26:25,479 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 243 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:25,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 584 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 06:26:25,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-22 06:26:25,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 175. [2024-11-22 06:26:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 141 states have (on average 1.4680851063829787) internal successors, (207), 142 states have internal predecessors, (207), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:26:25,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 269 transitions. [2024-11-22 06:26:25,485 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 269 transitions. Word has length 171 [2024-11-22 06:26:25,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:25,485 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 269 transitions. [2024-11-22 06:26:25,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:25,485 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 269 transitions. [2024-11-22 06:26:25,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-22 06:26:25,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:25,486 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:25,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 06:26:25,487 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:25,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:25,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2133382454, now seen corresponding path program 1 times [2024-11-22 06:26:25,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:25,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74513992] [2024-11-22 06:26:25,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:25,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:25,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:25,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:25,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74513992] [2024-11-22 06:26:25,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74513992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:25,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:25,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 06:26:25,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441339189] [2024-11-22 06:26:25,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:25,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 06:26:25,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:25,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 06:26:25,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 06:26:25,605 INFO L87 Difference]: Start difference. First operand 175 states and 269 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:25,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:25,737 INFO L93 Difference]: Finished difference Result 350 states and 537 transitions. [2024-11-22 06:26:25,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 06:26:25,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2024-11-22 06:26:25,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:25,740 INFO L225 Difference]: With dead ends: 350 [2024-11-22 06:26:25,740 INFO L226 Difference]: Without dead ends: 178 [2024-11-22 06:26:25,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 06:26:25,741 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 62 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:25,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 361 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 06:26:25,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-22 06:26:25,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 173. [2024-11-22 06:26:25,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 139 states have (on average 1.460431654676259) internal successors, (203), 140 states have internal predecessors, (203), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:26:25,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 265 transitions. [2024-11-22 06:26:25,747 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 265 transitions. Word has length 172 [2024-11-22 06:26:25,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:25,748 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 265 transitions. [2024-11-22 06:26:25,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:25,748 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 265 transitions. [2024-11-22 06:26:25,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-22 06:26:25,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:25,749 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:25,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 06:26:25,750 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:25,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:25,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1067956517, now seen corresponding path program 1 times [2024-11-22 06:26:25,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:25,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144358591] [2024-11-22 06:26:25,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:25,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:27,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:27,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:27,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144358591] [2024-11-22 06:26:27,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144358591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:27,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:27,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 06:26:27,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478810863] [2024-11-22 06:26:27,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:27,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 06:26:27,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:27,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 06:26:27,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-22 06:26:27,455 INFO L87 Difference]: Start difference. First operand 173 states and 265 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:28,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:28,249 INFO L93 Difference]: Finished difference Result 430 states and 650 transitions. [2024-11-22 06:26:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 06:26:28,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2024-11-22 06:26:28,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:28,252 INFO L225 Difference]: With dead ends: 430 [2024-11-22 06:26:28,253 INFO L226 Difference]: Without dead ends: 260 [2024-11-22 06:26:28,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:26:28,254 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 217 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:28,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 679 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 06:26:28,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-22 06:26:28,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 172. [2024-11-22 06:26:28,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 138 states have (on average 1.4565217391304348) internal successors, (201), 139 states have internal predecessors, (201), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 06:26:28,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2024-11-22 06:26:28,276 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 172 [2024-11-22 06:26:28,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:28,276 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2024-11-22 06:26:28,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:28,280 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2024-11-22 06:26:28,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-22 06:26:28,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:28,281 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:28,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 06:26:28,281 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:28,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:28,282 INFO L85 PathProgramCache]: Analyzing trace with hash -592848290, now seen corresponding path program 1 times [2024-11-22 06:26:28,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:28,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320794950] [2024-11-22 06:26:28,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:28,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:33,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:33,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:33,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320794950] [2024-11-22 06:26:33,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320794950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:33,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:33,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 06:26:33,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398184185] [2024-11-22 06:26:33,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:33,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 06:26:33,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:33,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 06:26:33,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:26:33,252 INFO L87 Difference]: Start difference. First operand 172 states and 263 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:35,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:35,559 INFO L93 Difference]: Finished difference Result 588 states and 886 transitions. [2024-11-22 06:26:35,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 06:26:35,564 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2024-11-22 06:26:35,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:35,572 INFO L225 Difference]: With dead ends: 588 [2024-11-22 06:26:35,572 INFO L226 Difference]: Without dead ends: 419 [2024-11-22 06:26:35,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2024-11-22 06:26:35,573 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 280 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:35,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 953 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 06:26:35,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-22 06:26:35,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 327. [2024-11-22 06:26:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 244 states have (on average 1.401639344262295) internal successors, (342), 247 states have internal predecessors, (342), 77 states have call successors, (77), 5 states have call predecessors, (77), 5 states have return successors, (77), 74 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-22 06:26:35,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 496 transitions. [2024-11-22 06:26:35,639 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 496 transitions. Word has length 172 [2024-11-22 06:26:35,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:35,640 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 496 transitions. [2024-11-22 06:26:35,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:35,640 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 496 transitions. [2024-11-22 06:26:35,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-22 06:26:35,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:35,641 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:35,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 06:26:35,641 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:35,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:35,641 INFO L85 PathProgramCache]: Analyzing trace with hash 108216288, now seen corresponding path program 1 times [2024-11-22 06:26:35,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:35,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881843750] [2024-11-22 06:26:35,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:35,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:42,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:42,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:42,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881843750] [2024-11-22 06:26:42,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881843750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:42,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:42,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 06:26:42,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502993194] [2024-11-22 06:26:42,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:42,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 06:26:42,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:42,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 06:26:42,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:26:42,569 INFO L87 Difference]: Start difference. First operand 327 states and 496 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:43,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:43,824 INFO L93 Difference]: Finished difference Result 510 states and 754 transitions. [2024-11-22 06:26:43,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 06:26:43,825 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2024-11-22 06:26:43,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:43,828 INFO L225 Difference]: With dead ends: 510 [2024-11-22 06:26:43,829 INFO L226 Difference]: Without dead ends: 508 [2024-11-22 06:26:43,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-22 06:26:43,830 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 172 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:43,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1096 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 06:26:43,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-22 06:26:43,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 489. [2024-11-22 06:26:43,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 356 states have (on average 1.3679775280898876) internal successors, (487), 362 states have internal predecessors, (487), 122 states have call successors, (122), 10 states have call predecessors, (122), 10 states have return successors, (122), 116 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-22 06:26:43,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 731 transitions. [2024-11-22 06:26:43,885 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 731 transitions. Word has length 172 [2024-11-22 06:26:43,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:43,886 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 731 transitions. [2024-11-22 06:26:43,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:43,886 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 731 transitions. [2024-11-22 06:26:43,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-22 06:26:43,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:43,887 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:43,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 06:26:43,887 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:43,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:43,888 INFO L85 PathProgramCache]: Analyzing trace with hash -6042276, now seen corresponding path program 1 times [2024-11-22 06:26:43,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:43,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96955031] [2024-11-22 06:26:43,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:43,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:26:51,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:26:51,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:26:51,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96955031] [2024-11-22 06:26:51,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96955031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:26:51,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:26:51,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 06:26:51,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335318161] [2024-11-22 06:26:51,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:26:51,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 06:26:51,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:26:51,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 06:26:51,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:26:51,386 INFO L87 Difference]: Start difference. First operand 489 states and 731 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:54,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:26:54,098 INFO L93 Difference]: Finished difference Result 1047 states and 1557 transitions. [2024-11-22 06:26:54,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 06:26:54,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2024-11-22 06:26:54,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:26:54,101 INFO L225 Difference]: With dead ends: 1047 [2024-11-22 06:26:54,102 INFO L226 Difference]: Without dead ends: 572 [2024-11-22 06:26:54,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-22 06:26:54,103 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 148 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-22 06:26:54,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 972 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-22 06:26:54,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-22 06:26:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 519. [2024-11-22 06:26:54,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 383 states have (on average 1.360313315926893) internal successors, (521), 390 states have internal predecessors, (521), 124 states have call successors, (124), 11 states have call predecessors, (124), 11 states have return successors, (124), 117 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-22 06:26:54,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 769 transitions. [2024-11-22 06:26:54,172 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 769 transitions. Word has length 172 [2024-11-22 06:26:54,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:26:54,172 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 769 transitions. [2024-11-22 06:26:54,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:26:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 769 transitions. [2024-11-22 06:26:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-22 06:26:54,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:26:54,173 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:26:54,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 06:26:54,173 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:26:54,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:26:54,174 INFO L85 PathProgramCache]: Analyzing trace with hash 695022302, now seen corresponding path program 1 times [2024-11-22 06:26:54,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:26:54,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182083709] [2024-11-22 06:26:54,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:26:54,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:26:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:27:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:27:01,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:27:01,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182083709] [2024-11-22 06:27:01,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182083709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:27:01,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:27:01,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 06:27:01,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901220853] [2024-11-22 06:27:01,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:27:01,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 06:27:01,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:27:01,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 06:27:01,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 06:27:01,443 INFO L87 Difference]: Start difference. First operand 519 states and 769 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:27:03,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:27:03,511 INFO L93 Difference]: Finished difference Result 583 states and 851 transitions. [2024-11-22 06:27:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 06:27:03,512 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2024-11-22 06:27:03,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:27:03,514 INFO L225 Difference]: With dead ends: 583 [2024-11-22 06:27:03,514 INFO L226 Difference]: Without dead ends: 581 [2024-11-22 06:27:03,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-11-22 06:27:03,515 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 221 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 06:27:03,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 893 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 06:27:03,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-22 06:27:03,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 523. [2024-11-22 06:27:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 386 states have (on average 1.3575129533678756) internal successors, (524), 393 states have internal predecessors, (524), 124 states have call successors, (124), 12 states have call predecessors, (124), 12 states have return successors, (124), 117 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-22 06:27:03,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 772 transitions. [2024-11-22 06:27:03,613 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 772 transitions. Word has length 172 [2024-11-22 06:27:03,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:27:03,614 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 772 transitions. [2024-11-22 06:27:03,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:27:03,614 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 772 transitions. [2024-11-22 06:27:03,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-22 06:27:03,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:27:03,616 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:27:03,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 06:27:03,617 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:27:03,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:27:03,621 INFO L85 PathProgramCache]: Analyzing trace with hash 258764834, now seen corresponding path program 1 times [2024-11-22 06:27:03,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:27:03,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635183101] [2024-11-22 06:27:03,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:27:03,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:27:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:27:08,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:27:08,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:27:08,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635183101] [2024-11-22 06:27:08,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635183101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:27:08,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:27:08,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 06:27:08,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580388993] [2024-11-22 06:27:08,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:27:08,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 06:27:08,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:27:08,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 06:27:08,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:27:08,008 INFO L87 Difference]: Start difference. First operand 523 states and 772 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:27:09,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:27:09,024 INFO L93 Difference]: Finished difference Result 1006 states and 1483 transitions. [2024-11-22 06:27:09,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 06:27:09,025 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-22 06:27:09,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:27:09,029 INFO L225 Difference]: With dead ends: 1006 [2024-11-22 06:27:09,029 INFO L226 Difference]: Without dead ends: 715 [2024-11-22 06:27:09,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-22 06:27:09,031 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 285 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 06:27:09,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 817 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 06:27:09,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-22 06:27:09,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 515. [2024-11-22 06:27:09,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 381 states have (on average 1.3622047244094488) internal successors, (519), 387 states have internal predecessors, (519), 122 states have call successors, (122), 11 states have call predecessors, (122), 11 states have return successors, (122), 116 states have call predecessors, (122), 122 states have call successors, (122) [2024-11-22 06:27:09,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 763 transitions. [2024-11-22 06:27:09,136 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 763 transitions. Word has length 173 [2024-11-22 06:27:09,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:27:09,137 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 763 transitions. [2024-11-22 06:27:09,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:27:09,137 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 763 transitions. [2024-11-22 06:27:09,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-22 06:27:09,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:27:09,138 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:27:09,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 06:27:09,139 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:27:09,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:27:09,139 INFO L85 PathProgramCache]: Analyzing trace with hash 959829412, now seen corresponding path program 1 times [2024-11-22 06:27:09,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:27:09,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829523149] [2024-11-22 06:27:09,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:27:09,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:27:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:27:17,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:27:17,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:27:17,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829523149] [2024-11-22 06:27:17,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829523149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:27:17,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:27:17,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 06:27:17,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029575522] [2024-11-22 06:27:17,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:27:17,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 06:27:17,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:27:17,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 06:27:17,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-22 06:27:17,223 INFO L87 Difference]: Start difference. First operand 515 states and 763 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:27:20,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:27:20,564 INFO L93 Difference]: Finished difference Result 715 states and 1026 transitions. [2024-11-22 06:27:20,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 06:27:20,566 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-22 06:27:20,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:27:20,573 INFO L225 Difference]: With dead ends: 715 [2024-11-22 06:27:20,573 INFO L226 Difference]: Without dead ends: 713 [2024-11-22 06:27:20,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-11-22 06:27:20,575 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 260 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-22 06:27:20,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1134 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-22 06:27:20,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-22 06:27:20,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 646. [2024-11-22 06:27:20,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 503 states have (on average 1.36779324055666) internal successors, (688), 512 states have internal predecessors, (688), 128 states have call successors, (128), 14 states have call predecessors, (128), 14 states have return successors, (128), 119 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-22 06:27:20,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 944 transitions. [2024-11-22 06:27:20,677 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 944 transitions. Word has length 173 [2024-11-22 06:27:20,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:27:20,678 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 944 transitions. [2024-11-22 06:27:20,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:27:20,678 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 944 transitions. [2024-11-22 06:27:20,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-22 06:27:20,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:27:20,682 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:27:20,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 06:27:20,682 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:27:20,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:27:20,682 INFO L85 PathProgramCache]: Analyzing trace with hash 717518213, now seen corresponding path program 1 times [2024-11-22 06:27:20,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:27:20,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829333355] [2024-11-22 06:27:20,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:27:20,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:27:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:27:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:27:23,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:27:23,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829333355] [2024-11-22 06:27:23,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829333355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:27:23,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:27:23,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 06:27:23,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793161765] [2024-11-22 06:27:23,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:27:23,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 06:27:23,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:27:23,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 06:27:23,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-22 06:27:23,221 INFO L87 Difference]: Start difference. First operand 646 states and 944 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:27:25,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 06:27:25,014 INFO L93 Difference]: Finished difference Result 1482 states and 2139 transitions. [2024-11-22 06:27:25,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 06:27:25,016 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-22 06:27:25,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 06:27:25,020 INFO L225 Difference]: With dead ends: 1482 [2024-11-22 06:27:25,020 INFO L226 Difference]: Without dead ends: 1039 [2024-11-22 06:27:25,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-11-22 06:27:25,023 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 306 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 06:27:25,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 576 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 06:27:25,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-22 06:27:25,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 647. [2024-11-22 06:27:25,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 504 states have (on average 1.367063492063492) internal successors, (689), 513 states have internal predecessors, (689), 128 states have call successors, (128), 14 states have call predecessors, (128), 14 states have return successors, (128), 119 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-22 06:27:25,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 945 transitions. [2024-11-22 06:27:25,119 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 945 transitions. Word has length 173 [2024-11-22 06:27:25,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 06:27:25,119 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 945 transitions. [2024-11-22 06:27:25,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-22 06:27:25,120 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 945 transitions. [2024-11-22 06:27:25,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-22 06:27:25,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 06:27:25,121 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 06:27:25,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 06:27:25,121 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 06:27:25,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 06:27:25,124 INFO L85 PathProgramCache]: Analyzing trace with hash -303550141, now seen corresponding path program 1 times [2024-11-22 06:27:25,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 06:27:25,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921302844] [2024-11-22 06:27:25,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 06:27:25,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 06:27:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 06:27:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-22 06:27:28,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 06:27:28,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921302844] [2024-11-22 06:27:28,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921302844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 06:27:28,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 06:27:28,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 06:27:28,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246162963] [2024-11-22 06:27:28,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 06:27:28,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 06:27:28,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 06:27:28,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 06:27:28,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-22 06:27:28,497 INFO L87 Difference]: Start difference. First operand 647 states and 945 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)