./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-29.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-29.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 dddfc5942fec34b0a88732e75b6357bb86711b701ff81e97599587530ca1ca17 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:50:46,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:50:46,348 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:50:46,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:50:46,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:50:46,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:50:46,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:50:46,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:50:46,376 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:50:46,376 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:50:46,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:50:46,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:50:46,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:50:46,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:50:46,378 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:50:46,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:50:46,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:50:46,378 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:50:46,379 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:50:46,379 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:50:46,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:50:46,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:50:46,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:50:46,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:50:46,383 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:50:46,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:50:46,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:50:46,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:50:46,383 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:50:46,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:50:46,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:50:46,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:50:46,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:50:46,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:50:46,384 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:50:46,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:50:46,385 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:50:46,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:50:46,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:50:46,385 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:50:46,385 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:50:46,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:50:46,387 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dddfc5942fec34b0a88732e75b6357bb86711b701ff81e97599587530ca1ca17 [2024-11-18 19:50:46,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:50:46,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:50:46,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:50:46,582 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:50:46,582 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:50:46,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-29.i [2024-11-18 19:50:47,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:50:47,965 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:50:47,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-29.i [2024-11-18 19:50:47,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a5b3753/a679a8c523a94d23ae6d5645bcc561dc/FLAG987aa0783 [2024-11-18 19:50:48,319 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a5b3753/a679a8c523a94d23ae6d5645bcc561dc [2024-11-18 19:50:48,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:50:48,322 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:50:48,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:50:48,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:50:48,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:50:48,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:48,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473ed030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48, skipping insertion in model container [2024-11-18 19:50:48,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:48,365 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:50:48,559 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_fillercode_fillercodesize_ps-cn-500_file-29.i[916,929] [2024-11-18 19:50:48,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:50:48,733 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:50:48,745 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_fillercode_fillercodesize_ps-cn-500_file-29.i[916,929] [2024-11-18 19:50:48,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:50:48,824 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:50:48,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48 WrapperNode [2024-11-18 19:50:48,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:50:48,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:50:48,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:50:48,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:50:48,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:48,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:48,929 INFO L138 Inliner]: procedures = 26, calls = 123, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 882 [2024-11-18 19:50:48,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:50:48,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:50:48,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:50:48,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:50:48,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:48,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:48,955 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:48,996 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 19:50:48,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:48,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:49,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:49,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:49,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:49,050 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:49,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:50:49,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:50:49,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:50:49,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:50:49,059 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (1/1) ... [2024-11-18 19:50:49,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:50:49,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:50:49,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 19:50:49,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 19:50:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:50:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:50:49,121 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:50:49,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:50:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:50:49,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:50:49,237 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:50:49,238 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:50:50,296 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-18 19:50:50,297 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:50:50,318 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:50:50,319 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:50:50,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:50 BoogieIcfgContainer [2024-11-18 19:50:50,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:50:50,345 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:50:50,345 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:50:50,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:50:50,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:50:48" (1/3) ... [2024-11-18 19:50:50,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b05475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:50, skipping insertion in model container [2024-11-18 19:50:50,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:48" (2/3) ... [2024-11-18 19:50:50,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b05475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:50, skipping insertion in model container [2024-11-18 19:50:50,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:50" (3/3) ... [2024-11-18 19:50:50,353 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-29.i [2024-11-18 19:50:50,365 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:50:50,365 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:50:50,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:50:50,427 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;@2bc33f8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:50:50,427 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:50:50,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 363 states, 250 states have (on average 1.612) internal successors, (403), 251 states have internal predecessors, (403), 110 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-18 19:50:50,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:50:50,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:50,461 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:50,462 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:50,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:50,467 INFO L85 PathProgramCache]: Analyzing trace with hash 550822829, now seen corresponding path program 1 times [2024-11-18 19:50:50,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:50,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413451684] [2024-11-18 19:50:50,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:50,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:51,032 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 23762 trivial. 0 not checked. [2024-11-18 19:50:51,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:51,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413451684] [2024-11-18 19:50:51,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413451684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:50:51,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983921168] [2024-11-18 19:50:51,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:51,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:50:51,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:50:51,037 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:50:51,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:50:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:51,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:50:51,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:50:51,448 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 23762 trivial. 0 not checked. [2024-11-18 19:50:51,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:50:51,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983921168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:51,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:50:51,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:50:51,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787698290] [2024-11-18 19:50:51,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:51,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:50:51,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:51,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:50:51,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:50:51,482 INFO L87 Difference]: Start difference. First operand has 363 states, 250 states have (on average 1.612) internal successors, (403), 251 states have internal predecessors, (403), 110 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 2 states have call successors, (110) [2024-11-18 19:50:51,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:51,549 INFO L93 Difference]: Finished difference Result 719 states and 1350 transitions. [2024-11-18 19:50:51,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:50:51,553 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 2 states have call successors, (110) Word has length 702 [2024-11-18 19:50:51,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:51,562 INFO L225 Difference]: With dead ends: 719 [2024-11-18 19:50:51,562 INFO L226 Difference]: Without dead ends: 359 [2024-11-18 19:50:51,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 703 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:50:51,571 INFO L432 NwaCegarLoop]: 615 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, 615 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 [2024-11-18 19:50:51,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:51,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-18 19:50:51,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-18 19:50:51,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 247 states have (on average 1.5991902834008098) internal successors, (395), 247 states have internal predecessors, (395), 110 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-18 19:50:51,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 615 transitions. [2024-11-18 19:50:51,655 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 615 transitions. Word has length 702 [2024-11-18 19:50:51,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:51,656 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 615 transitions. [2024-11-18 19:50:51,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 2 states have call successors, (110) [2024-11-18 19:50:51,657 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 615 transitions. [2024-11-18 19:50:51,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:50:51,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:51,671 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:51,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:50:51,872 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 [2024-11-18 19:50:51,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:51,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1283461793, now seen corresponding path program 1 times [2024-11-18 19:50:51,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:51,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856584921] [2024-11-18 19:50:51,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:51,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:50:52,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:52,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856584921] [2024-11-18 19:50:52,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856584921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:52,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:52,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:52,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595045863] [2024-11-18 19:50:52,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:52,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:52,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:52,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:52,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:52,352 INFO L87 Difference]: Start difference. First operand 359 states and 615 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:52,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:52,448 INFO L93 Difference]: Finished difference Result 934 states and 1611 transitions. [2024-11-18 19:50:52,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:52,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 702 [2024-11-18 19:50:52,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:52,457 INFO L225 Difference]: With dead ends: 934 [2024-11-18 19:50:52,458 INFO L226 Difference]: Without dead ends: 578 [2024-11-18 19:50:52,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:52,462 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 381 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:52,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 1295 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:52,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-18 19:50:52,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 575. [2024-11-18 19:50:52,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 432 states have (on average 1.650462962962963) internal successors, (713), 433 states have internal predecessors, (713), 140 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (140), 139 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-18 19:50:52,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 993 transitions. [2024-11-18 19:50:52,523 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 993 transitions. Word has length 702 [2024-11-18 19:50:52,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:52,526 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 993 transitions. [2024-11-18 19:50:52,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:52,527 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 993 transitions. [2024-11-18 19:50:52,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:50:52,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:52,540 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:52,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:50:52,541 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:52,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:52,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1135022685, now seen corresponding path program 1 times [2024-11-18 19:50:52,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:52,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487143213] [2024-11-18 19:50:52,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:52,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:52,887 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:50:52,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:52,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487143213] [2024-11-18 19:50:52,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487143213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:52,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:52,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:52,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179933439] [2024-11-18 19:50:52,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:52,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:52,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:52,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:52,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:52,895 INFO L87 Difference]: Start difference. First operand 575 states and 993 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:52,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:52,962 INFO L93 Difference]: Finished difference Result 1158 states and 1996 transitions. [2024-11-18 19:50:52,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:52,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 702 [2024-11-18 19:50:52,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:52,970 INFO L225 Difference]: With dead ends: 1158 [2024-11-18 19:50:52,970 INFO L226 Difference]: Without dead ends: 586 [2024-11-18 19:50:52,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:52,974 INFO L432 NwaCegarLoop]: 691 mSDtfsCounter, 355 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:52,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1289 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:52,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2024-11-18 19:50:53,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 498. [2024-11-18 19:50:53,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 385 states have (on average 1.6623376623376624) internal successors, (640), 385 states have internal predecessors, (640), 110 states have call successors, (110), 2 states have call predecessors, (110), 2 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-18 19:50:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 860 transitions. [2024-11-18 19:50:53,007 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 860 transitions. Word has length 702 [2024-11-18 19:50:53,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:53,011 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 860 transitions. [2024-11-18 19:50:53,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:53,011 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 860 transitions. [2024-11-18 19:50:53,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:50:53,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:53,020 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:53,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:50:53,021 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:53,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:53,021 INFO L85 PathProgramCache]: Analyzing trace with hash -310459359, now seen corresponding path program 1 times [2024-11-18 19:50:53,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:53,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438604833] [2024-11-18 19:50:53,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:53,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:53,300 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:50:53,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:53,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438604833] [2024-11-18 19:50:53,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438604833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:53,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:53,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:53,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559093650] [2024-11-18 19:50:53,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:53,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:53,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:53,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:53,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:53,306 INFO L87 Difference]: Start difference. First operand 498 states and 860 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:53,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:53,368 INFO L93 Difference]: Finished difference Result 1478 states and 2554 transitions. [2024-11-18 19:50:53,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:53,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 702 [2024-11-18 19:50:53,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:53,374 INFO L225 Difference]: With dead ends: 1478 [2024-11-18 19:50:53,374 INFO L226 Difference]: Without dead ends: 983 [2024-11-18 19:50:53,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:53,376 INFO L432 NwaCegarLoop]: 1026 mSDtfsCounter, 599 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:53,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1625 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:53,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2024-11-18 19:50:53,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 724. [2024-11-18 19:50:53,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 611 states have (on average 1.7103109656301145) internal successors, (1045), 611 states have internal predecessors, (1045), 110 states have call successors, (110), 2 states have call predecessors, (110), 2 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-18 19:50:53,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1265 transitions. [2024-11-18 19:50:53,409 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1265 transitions. Word has length 702 [2024-11-18 19:50:53,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:53,410 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 1265 transitions. [2024-11-18 19:50:53,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:53,410 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1265 transitions. [2024-11-18 19:50:53,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:50:53,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:53,414 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:53,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:50:53,415 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:53,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:53,415 INFO L85 PathProgramCache]: Analyzing trace with hash 565559647, now seen corresponding path program 1 times [2024-11-18 19:50:53,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:53,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32172063] [2024-11-18 19:50:53,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:53,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:50:53,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:53,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32172063] [2024-11-18 19:50:53,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32172063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:53,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:53,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:53,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294960743] [2024-11-18 19:50:53,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:53,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:53,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:53,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:53,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:53,676 INFO L87 Difference]: Start difference. First operand 724 states and 1265 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:53,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:53,716 INFO L93 Difference]: Finished difference Result 1992 states and 3467 transitions. [2024-11-18 19:50:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:53,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 702 [2024-11-18 19:50:53,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:53,724 INFO L225 Difference]: With dead ends: 1992 [2024-11-18 19:50:53,724 INFO L226 Difference]: Without dead ends: 1271 [2024-11-18 19:50:53,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:53,726 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 515 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:53,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1217 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:53,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2024-11-18 19:50:53,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 848. [2024-11-18 19:50:53,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 735 states have (on average 1.7183673469387755) internal successors, (1263), 735 states have internal predecessors, (1263), 110 states have call successors, (110), 2 states have call predecessors, (110), 2 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-18 19:50:53,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1483 transitions. [2024-11-18 19:50:53,759 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1483 transitions. Word has length 702 [2024-11-18 19:50:53,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:53,760 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1483 transitions. [2024-11-18 19:50:53,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:53,760 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1483 transitions. [2024-11-18 19:50:53,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:50:53,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:53,764 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:53,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:50:53,765 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:53,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:53,765 INFO L85 PathProgramCache]: Analyzing trace with hash -761561893, now seen corresponding path program 1 times [2024-11-18 19:50:53,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:53,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296145849] [2024-11-18 19:50:53,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:53,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:50:54,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:54,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296145849] [2024-11-18 19:50:54,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296145849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:54,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:54,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:54,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540703925] [2024-11-18 19:50:54,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:54,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:54,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:54,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:54,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:54,022 INFO L87 Difference]: Start difference. First operand 848 states and 1483 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:54,064 INFO L93 Difference]: Finished difference Result 2109 states and 3680 transitions. [2024-11-18 19:50:54,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:54,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 702 [2024-11-18 19:50:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:54,071 INFO L225 Difference]: With dead ends: 2109 [2024-11-18 19:50:54,071 INFO L226 Difference]: Without dead ends: 1264 [2024-11-18 19:50:54,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:54,075 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 264 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:54,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1214 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:54,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2024-11-18 19:50:54,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1261. [2024-11-18 19:50:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1088 states have (on average 1.703125) internal successors, (1853), 1089 states have internal predecessors, (1853), 168 states have call successors, (168), 4 states have call predecessors, (168), 4 states have return successors, (168), 167 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-18 19:50:54,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 2189 transitions. [2024-11-18 19:50:54,107 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 2189 transitions. Word has length 702 [2024-11-18 19:50:54,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:54,108 INFO L471 AbstractCegarLoop]: Abstraction has 1261 states and 2189 transitions. [2024-11-18 19:50:54,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:54,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 2189 transitions. [2024-11-18 19:50:54,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:50:54,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:54,112 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:54,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:50:54,113 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:54,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:54,114 INFO L85 PathProgramCache]: Analyzing trace with hash 574860127, now seen corresponding path program 1 times [2024-11-18 19:50:54,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:54,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141755377] [2024-11-18 19:50:54,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:54,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:50:54,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:54,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141755377] [2024-11-18 19:50:54,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141755377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:54,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:54,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:54,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800551180] [2024-11-18 19:50:54,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:54,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:54,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:54,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:54,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:54,322 INFO L87 Difference]: Start difference. First operand 1261 states and 2189 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:54,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:54,402 INFO L93 Difference]: Finished difference Result 3598 states and 6252 transitions. [2024-11-18 19:50:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:54,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 702 [2024-11-18 19:50:54,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:54,413 INFO L225 Difference]: With dead ends: 3598 [2024-11-18 19:50:54,413 INFO L226 Difference]: Without dead ends: 2340 [2024-11-18 19:50:54,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:54,417 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 415 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:54,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1557 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:54,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2024-11-18 19:50:54,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 2337. [2024-11-18 19:50:54,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2337 states, 2036 states have (on average 1.6856581532416504) internal successors, (3432), 2039 states have internal predecessors, (3432), 292 states have call successors, (292), 8 states have call predecessors, (292), 8 states have return successors, (292), 289 states have call predecessors, (292), 292 states have call successors, (292) [2024-11-18 19:50:54,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2337 states to 2337 states and 4016 transitions. [2024-11-18 19:50:54,468 INFO L78 Accepts]: Start accepts. Automaton has 2337 states and 4016 transitions. Word has length 702 [2024-11-18 19:50:54,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:54,469 INFO L471 AbstractCegarLoop]: Abstraction has 2337 states and 4016 transitions. [2024-11-18 19:50:54,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:54,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2337 states and 4016 transitions. [2024-11-18 19:50:54,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:50:54,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:54,475 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:54,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:50:54,475 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:54,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:54,475 INFO L85 PathProgramCache]: Analyzing trace with hash 708873633, now seen corresponding path program 1 times [2024-11-18 19:50:54,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:54,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377194799] [2024-11-18 19:50:54,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:54,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:50:54,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:54,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377194799] [2024-11-18 19:50:54,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377194799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:54,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:54,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:50:54,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514036571] [2024-11-18 19:50:54,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:54,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:50:54,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:54,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:50:54,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:50:54,921 INFO L87 Difference]: Start difference. First operand 2337 states and 4016 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:57,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:57,394 INFO L93 Difference]: Finished difference Result 17661 states and 30347 transitions. [2024-11-18 19:50:57,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 19:50:57,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 702 [2024-11-18 19:50:57,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:57,480 INFO L225 Difference]: With dead ends: 17661 [2024-11-18 19:50:57,480 INFO L226 Difference]: Without dead ends: 15327 [2024-11-18 19:50:57,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-18 19:50:57,489 INFO L432 NwaCegarLoop]: 911 mSDtfsCounter, 3712 mSDsluCounter, 2754 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 1408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3712 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1408 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:57,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3712 Valid, 3665 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1408 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-18 19:50:57,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15327 states. [2024-11-18 19:50:57,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15327 to 8887. [2024-11-18 19:50:57,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8887 states, 7770 states have (on average 1.6823680823680824) internal successors, (13072), 7783 states have internal predecessors, (13072), 1084 states have call successors, (1084), 32 states have call predecessors, (1084), 32 states have return successors, (1084), 1071 states have call predecessors, (1084), 1084 states have call successors, (1084) [2024-11-18 19:50:57,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8887 states to 8887 states and 15240 transitions. [2024-11-18 19:50:57,984 INFO L78 Accepts]: Start accepts. Automaton has 8887 states and 15240 transitions. Word has length 702 [2024-11-18 19:50:57,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:57,985 INFO L471 AbstractCegarLoop]: Abstraction has 8887 states and 15240 transitions. [2024-11-18 19:50:57,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:57,986 INFO L276 IsEmpty]: Start isEmpty. Operand 8887 states and 15240 transitions. [2024-11-18 19:50:57,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:50:57,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:57,999 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:58,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:50:58,000 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:58,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:58,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1388145887, now seen corresponding path program 1 times [2024-11-18 19:50:58,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:58,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102928132] [2024-11-18 19:50:58,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:58,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:58,590 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:50:58,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:58,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102928132] [2024-11-18 19:50:58,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102928132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:58,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:58,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:58,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999511585] [2024-11-18 19:50:58,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:58,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:58,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:58,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:58,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:58,593 INFO L87 Difference]: Start difference. First operand 8887 states and 15240 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:58,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:58,981 INFO L93 Difference]: Finished difference Result 26655 states and 45714 transitions. [2024-11-18 19:50:58,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:58,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 702 [2024-11-18 19:50:58,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:59,049 INFO L225 Difference]: With dead ends: 26655 [2024-11-18 19:50:59,050 INFO L226 Difference]: Without dead ends: 17771 [2024-11-18 19:50:59,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:59,075 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 357 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:59,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1221 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17771 states. [2024-11-18 19:50:59,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17771 to 17769. [2024-11-18 19:50:59,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17769 states, 15536 states have (on average 1.681513903192585) internal successors, (26124), 15562 states have internal predecessors, (26124), 2168 states have call successors, (2168), 64 states have call predecessors, (2168), 64 states have return successors, (2168), 2142 states have call predecessors, (2168), 2168 states have call successors, (2168) [2024-11-18 19:50:59,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17769 states to 17769 states and 30460 transitions. [2024-11-18 19:50:59,852 INFO L78 Accepts]: Start accepts. Automaton has 17769 states and 30460 transitions. Word has length 702 [2024-11-18 19:50:59,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:59,853 INFO L471 AbstractCegarLoop]: Abstraction has 17769 states and 30460 transitions. [2024-11-18 19:50:59,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:50:59,854 INFO L276 IsEmpty]: Start isEmpty. Operand 17769 states and 30460 transitions. [2024-11-18 19:50:59,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:50:59,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:59,869 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:59,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:50:59,869 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:59,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:59,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1445404189, now seen corresponding path program 1 times [2024-11-18 19:50:59,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:59,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464647381] [2024-11-18 19:50:59,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:59,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:01,078 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:51:01,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:01,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464647381] [2024-11-18 19:51:01,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464647381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:01,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:01,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 19:51:01,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966637690] [2024-11-18 19:51:01,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:01,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 19:51:01,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:01,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 19:51:01,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:51:01,081 INFO L87 Difference]: Start difference. First operand 17769 states and 30460 transitions. Second operand has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:51:07,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:07,412 INFO L93 Difference]: Finished difference Result 89208 states and 150753 transitions. [2024-11-18 19:51:07,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 19:51:07,413 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 702 [2024-11-18 19:51:07,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:07,619 INFO L225 Difference]: With dead ends: 89208 [2024-11-18 19:51:07,619 INFO L226 Difference]: Without dead ends: 71442 [2024-11-18 19:51:07,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2024-11-18 19:51:07,677 INFO L432 NwaCegarLoop]: 981 mSDtfsCounter, 5213 mSDsluCounter, 3427 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 1473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5213 SdHoareTripleChecker+Valid, 4408 SdHoareTripleChecker+Invalid, 3206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1473 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:07,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5213 Valid, 4408 Invalid, 3206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1473 Valid, 1733 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-18 19:51:07,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71442 states. [2024-11-18 19:51:10,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71442 to 58483. [2024-11-18 19:51:10,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58483 states, 49598 states have (on average 1.6360337110367353) internal successors, (81144), 49772 states have internal predecessors, (81144), 8524 states have call successors, (8524), 360 states have call predecessors, (8524), 360 states have return successors, (8524), 8350 states have call predecessors, (8524), 8524 states have call successors, (8524) [2024-11-18 19:51:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58483 states to 58483 states and 98192 transitions. [2024-11-18 19:51:11,094 INFO L78 Accepts]: Start accepts. Automaton has 58483 states and 98192 transitions. Word has length 702 [2024-11-18 19:51:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:11,096 INFO L471 AbstractCegarLoop]: Abstraction has 58483 states and 98192 transitions. [2024-11-18 19:51:11,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.5) internal successors, (155), 10 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:51:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 58483 states and 98192 transitions. [2024-11-18 19:51:11,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:51:11,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:11,136 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:11,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:51:11,136 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:11,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:11,137 INFO L85 PathProgramCache]: Analyzing trace with hash 745074521, now seen corresponding path program 1 times [2024-11-18 19:51:11,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:11,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046857100] [2024-11-18 19:51:11,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:11,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:12,496 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:51:12,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:12,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046857100] [2024-11-18 19:51:12,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046857100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:12,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:12,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 19:51:12,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157177251] [2024-11-18 19:51:12,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:12,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 19:51:12,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:12,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 19:51:12,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-18 19:51:12,499 INFO L87 Difference]: Start difference. First operand 58483 states and 98192 transitions. Second operand has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:51:27,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:27,984 INFO L93 Difference]: Finished difference Result 338356 states and 567044 transitions. [2024-11-18 19:51:27,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-18 19:51:27,985 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 702 [2024-11-18 19:51:27,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:29,220 INFO L225 Difference]: With dead ends: 338356 [2024-11-18 19:51:29,221 INFO L226 Difference]: Without dead ends: 279876 [2024-11-18 19:51:29,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2024-11-18 19:51:29,387 INFO L432 NwaCegarLoop]: 1767 mSDtfsCounter, 5972 mSDsluCounter, 10829 mSDsCounter, 0 mSdLazyCounter, 4593 mSolverCounterSat, 1050 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5972 SdHoareTripleChecker+Valid, 12596 SdHoareTripleChecker+Invalid, 5643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1050 IncrementalHoareTripleChecker+Valid, 4593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:29,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5972 Valid, 12596 Invalid, 5643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1050 Valid, 4593 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-18 19:51:29,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279876 states. [2024-11-18 19:51:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279876 to 185992. [2024-11-18 19:51:40,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185992 states, 158809 states have (on average 1.634195794948649) internal successors, (259525), 159366 states have internal predecessors, (259525), 25923 states have call successors, (25923), 1259 states have call predecessors, (25923), 1259 states have return successors, (25923), 25366 states have call predecessors, (25923), 25923 states have call successors, (25923) [2024-11-18 19:51:41,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185992 states to 185992 states and 311371 transitions. [2024-11-18 19:51:41,213 INFO L78 Accepts]: Start accepts. Automaton has 185992 states and 311371 transitions. Word has length 702 [2024-11-18 19:51:41,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:41,215 INFO L471 AbstractCegarLoop]: Abstraction has 185992 states and 311371 transitions. [2024-11-18 19:51:41,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:51:41,215 INFO L276 IsEmpty]: Start isEmpty. Operand 185992 states and 311371 transitions. [2024-11-18 19:51:41,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-11-18 19:51:41,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:41,300 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:41,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:51:41,300 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:41,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:41,301 INFO L85 PathProgramCache]: Analyzing trace with hash -222276133, now seen corresponding path program 1 times [2024-11-18 19:51:41,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:41,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259253917] [2024-11-18 19:51:41,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:41,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat