./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-14.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 6a5b8f8985922577fd511c19d4504abdec5cee4f39c0b7323776313784fc34a5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:41:09,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:41:09,402 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:41:09,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:41:09,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:41:09,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:41:09,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:41:09,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:41:09,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:41:09,426 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:41:09,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:41:09,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:41:09,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:41:09,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:41:09,427 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:41:09,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:41:09,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:41:09,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:41:09,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:41:09,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:41:09,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:41:09,432 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:41:09,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:41:09,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:41:09,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:41:09,433 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:41:09,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:41:09,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:41:09,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:41:09,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:41:09,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:41:09,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:41:09,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:41:09,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:41:09,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:41:09,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:41:09,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:41:09,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:41:09,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:41:09,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:41:09,436 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:41:09,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:41:09,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a5b8f8985922577fd511c19d4504abdec5cee4f39c0b7323776313784fc34a5 [2024-11-22 07:41:09,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:41:09,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:41:09,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:41:09,662 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:41:09,662 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:41:09,663 INFO L431 ainManager$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-14.i [2024-11-22 07:41:10,972 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:41:11,195 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:41:11,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-14.i [2024-11-22 07:41:11,212 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/833b003fe/30117257cf4a45ef96ee52cd85a882c7/FLAG669f34940 [2024-11-22 07:41:11,228 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/833b003fe/30117257cf4a45ef96ee52cd85a882c7 [2024-11-22 07:41:11,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:41:11,233 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:41:11,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:41:11,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:41:11,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:41:11,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:11,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad6a5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11, skipping insertion in model container [2024-11-22 07:41:11,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:11,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:41:11,487 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-14.i[916,929] [2024-11-22 07:41:11,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:41:11,695 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:41:11,706 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-14.i[916,929] [2024-11-22 07:41:11,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:41:11,811 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:41:11,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11 WrapperNode [2024-11-22 07:41:11,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:41:11,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:41:11,813 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:41:11,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:41:11,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:11,842 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:11,910 INFO L138 Inliner]: procedures = 26, calls = 139, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 871 [2024-11-22 07:41:11,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:41:11,911 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:41:11,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:41:11,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:41:11,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:11,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:11,945 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:11,987 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 07:41:11,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:11,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:12,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:12,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:12,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:12,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:12,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:41:12,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:41:12,066 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:41:12,066 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:41:12,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (1/1) ... [2024-11-22 07:41:12,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:41:12,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:41:12,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 07:41:12,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 07:41:12,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:41:12,146 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:41:12,146 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:41:12,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:41:12,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:41:12,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:41:12,265 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:41:12,267 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:41:13,504 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-22 07:41:13,505 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:41:13,531 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:41:13,535 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:41:13,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:41:13 BoogieIcfgContainer [2024-11-22 07:41:13,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:41:13,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:41:13,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:41:13,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:41:13,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:41:11" (1/3) ... [2024-11-22 07:41:13,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24873041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:41:13, skipping insertion in model container [2024-11-22 07:41:13,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:11" (2/3) ... [2024-11-22 07:41:13,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24873041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:41:13, skipping insertion in model container [2024-11-22 07:41:13,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:41:13" (3/3) ... [2024-11-22 07:41:13,546 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-14.i [2024-11-22 07:41:13,561 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:41:13,561 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:41:13,637 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:41:13,645 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;@776565c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:41:13,645 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:41:13,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 240 states have (on average 1.5875) internal successors, (381), 241 states have internal predecessors, (381), 126 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-22 07:41:13,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2024-11-22 07:41:13,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:13,695 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:13,695 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:13,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:13,701 INFO L85 PathProgramCache]: Analyzing trace with hash 757028400, now seen corresponding path program 1 times [2024-11-22 07:41:13,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:13,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123997434] [2024-11-22 07:41:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:13,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:14,339 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 31250 trivial. 0 not checked. [2024-11-22 07:41:14,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:14,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123997434] [2024-11-22 07:41:14,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123997434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:41:14,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957389743] [2024-11-22 07:41:14,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:14,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:41:14,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:41:14,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 07:41:14,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 07:41:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:14,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 1751 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 07:41:14,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:41:14,838 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 31250 trivial. 0 not checked. [2024-11-22 07:41:14,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:41:14,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957389743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:14,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:41:14,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 07:41:14,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801880946] [2024-11-22 07:41:14,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:14,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:41:14,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:14,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:41:14,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:41:14,872 INFO L87 Difference]: Start difference. First operand has 369 states, 240 states have (on average 1.5875) internal successors, (381), 241 states have internal predecessors, (381), 126 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) Second operand has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 2 states have call successors, (126) [2024-11-22 07:41:14,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:14,923 INFO L93 Difference]: Finished difference Result 730 states and 1384 transitions. [2024-11-22 07:41:14,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:41:14,929 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 2 states have call successors, (126) Word has length 784 [2024-11-22 07:41:14,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:14,940 INFO L225 Difference]: With dead ends: 730 [2024-11-22 07:41:14,941 INFO L226 Difference]: Without dead ends: 364 [2024-11-22 07:41:14,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 785 GetRequests, 785 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:41:14,949 INFO L432 NwaCegarLoop]: 620 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, 620 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:14,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:14,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-22 07:41:15,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2024-11-22 07:41:15,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 236 states have (on average 1.5593220338983051) internal successors, (368), 236 states have internal predecessors, (368), 126 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-22 07:41:15,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 620 transitions. [2024-11-22 07:41:15,043 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 620 transitions. Word has length 784 [2024-11-22 07:41:15,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:15,044 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 620 transitions. [2024-11-22 07:41:15,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (126), 2 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 2 states have call successors, (126) [2024-11-22 07:41:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 620 transitions. [2024-11-22 07:41:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-22 07:41:15,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:15,063 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:15,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 07:41:15,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 07:41:15,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:15,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:15,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1613306567, now seen corresponding path program 1 times [2024-11-22 07:41:15,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:15,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738270141] [2024-11-22 07:41:15,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:15,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-22 07:41:15,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:15,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738270141] [2024-11-22 07:41:15,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738270141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:15,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:15,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:15,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982822093] [2024-11-22 07:41:15,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:15,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:15,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:15,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:15,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:15,855 INFO L87 Difference]: Start difference. First operand 364 states and 620 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:15,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:15,939 INFO L93 Difference]: Finished difference Result 933 states and 1600 transitions. [2024-11-22 07:41:15,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:15,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-11-22 07:41:15,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:15,948 INFO L225 Difference]: With dead ends: 933 [2024-11-22 07:41:15,950 INFO L226 Difference]: Without dead ends: 572 [2024-11-22 07:41:15,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:15,952 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 347 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:15,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1323 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:15,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-22 07:41:16,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 569. [2024-11-22 07:41:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 404 states have (on average 1.6212871287128714) internal successors, (655), 405 states have internal predecessors, (655), 162 states have call successors, (162), 2 states have call predecessors, (162), 2 states have return successors, (162), 161 states have call predecessors, (162), 162 states have call successors, (162) [2024-11-22 07:41:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 979 transitions. [2024-11-22 07:41:16,029 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 979 transitions. Word has length 785 [2024-11-22 07:41:16,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:16,032 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 979 transitions. [2024-11-22 07:41:16,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:16,033 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 979 transitions. [2024-11-22 07:41:16,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-22 07:41:16,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:16,047 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:16,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:41:16,047 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:16,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash 530652103, now seen corresponding path program 1 times [2024-11-22 07:41:16,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:16,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539832253] [2024-11-22 07:41:16,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:16,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:16,382 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-22 07:41:16,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:16,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539832253] [2024-11-22 07:41:16,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539832253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:16,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:16,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:16,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97090093] [2024-11-22 07:41:16,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:16,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:16,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:16,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:16,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:16,391 INFO L87 Difference]: Start difference. First operand 569 states and 979 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:16,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:16,489 INFO L93 Difference]: Finished difference Result 1559 states and 2694 transitions. [2024-11-22 07:41:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:16,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-11-22 07:41:16,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:16,498 INFO L225 Difference]: With dead ends: 1559 [2024-11-22 07:41:16,498 INFO L226 Difference]: Without dead ends: 993 [2024-11-22 07:41:16,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:16,500 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 367 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:16,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1370 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:16,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2024-11-22 07:41:16,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 990. [2024-11-22 07:41:16,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 740 states have (on average 1.6432432432432433) internal successors, (1216), 743 states have internal predecessors, (1216), 245 states have call successors, (245), 4 states have call predecessors, (245), 4 states have return successors, (245), 242 states have call predecessors, (245), 245 states have call successors, (245) [2024-11-22 07:41:16,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1706 transitions. [2024-11-22 07:41:16,554 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1706 transitions. Word has length 785 [2024-11-22 07:41:16,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:16,555 INFO L471 AbstractCegarLoop]: Abstraction has 990 states and 1706 transitions. [2024-11-22 07:41:16,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:16,556 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1706 transitions. [2024-11-22 07:41:16,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-22 07:41:16,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:16,561 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:16,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:41:16,562 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:16,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:16,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1191177081, now seen corresponding path program 1 times [2024-11-22 07:41:16,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:16,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952020991] [2024-11-22 07:41:16,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:16,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:16,888 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-22 07:41:16,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:16,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952020991] [2024-11-22 07:41:16,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952020991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:16,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:16,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:16,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146388385] [2024-11-22 07:41:16,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:16,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:16,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:16,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:16,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:16,892 INFO L87 Difference]: Start difference. First operand 990 states and 1706 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:16,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:16,970 INFO L93 Difference]: Finished difference Result 2512 states and 4294 transitions. [2024-11-22 07:41:16,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:16,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-11-22 07:41:16,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:16,982 INFO L225 Difference]: With dead ends: 2512 [2024-11-22 07:41:16,982 INFO L226 Difference]: Without dead ends: 1525 [2024-11-22 07:41:16,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:16,987 INFO L432 NwaCegarLoop]: 619 mSDtfsCounter, 319 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:16,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1229 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:16,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2024-11-22 07:41:17,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 1522. [2024-11-22 07:41:17,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1055 states have (on average 1.5819905213270142) internal successors, (1669), 1062 states have internal predecessors, (1669), 458 states have call successors, (458), 8 states have call predecessors, (458), 8 states have return successors, (458), 451 states have call predecessors, (458), 458 states have call successors, (458) [2024-11-22 07:41:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 2585 transitions. [2024-11-22 07:41:17,093 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 2585 transitions. Word has length 785 [2024-11-22 07:41:17,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:17,096 INFO L471 AbstractCegarLoop]: Abstraction has 1522 states and 2585 transitions. [2024-11-22 07:41:17,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:17,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 2585 transitions. [2024-11-22 07:41:17,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-22 07:41:17,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:17,106 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:17,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:41:17,107 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:17,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:17,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1700650171, now seen corresponding path program 1 times [2024-11-22 07:41:17,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:17,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192671841] [2024-11-22 07:41:17,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:17,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:17,379 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-22 07:41:17,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:17,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192671841] [2024-11-22 07:41:17,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192671841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:17,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:17,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:17,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773390143] [2024-11-22 07:41:17,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:17,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:17,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:17,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:17,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:17,382 INFO L87 Difference]: Start difference. First operand 1522 states and 2585 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:17,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:17,508 INFO L93 Difference]: Finished difference Result 4500 states and 7645 transitions. [2024-11-22 07:41:17,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:17,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-11-22 07:41:17,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:17,527 INFO L225 Difference]: With dead ends: 4500 [2024-11-22 07:41:17,528 INFO L226 Difference]: Without dead ends: 2981 [2024-11-22 07:41:17,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:17,536 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 588 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:17,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 1226 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:17,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2024-11-22 07:41:17,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2979. [2024-11-22 07:41:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2046 states have (on average 1.5728250244379276) internal successors, (3218), 2060 states have internal predecessors, (3218), 916 states have call successors, (916), 16 states have call predecessors, (916), 16 states have return successors, (916), 902 states have call predecessors, (916), 916 states have call successors, (916) [2024-11-22 07:41:17,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 5050 transitions. [2024-11-22 07:41:17,785 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 5050 transitions. Word has length 785 [2024-11-22 07:41:17,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:17,786 INFO L471 AbstractCegarLoop]: Abstraction has 2979 states and 5050 transitions. [2024-11-22 07:41:17,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:17,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 5050 transitions. [2024-11-22 07:41:17,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-22 07:41:17,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:17,792 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:17,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:41:17,792 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:17,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:17,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1638610557, now seen corresponding path program 1 times [2024-11-22 07:41:17,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:17,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5278117] [2024-11-22 07:41:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:17,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:18,053 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-22 07:41:18,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:18,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5278117] [2024-11-22 07:41:18,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5278117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:18,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:18,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:18,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715467525] [2024-11-22 07:41:18,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:18,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:18,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:18,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:18,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:18,057 INFO L87 Difference]: Start difference. First operand 2979 states and 5050 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:18,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:18,278 INFO L93 Difference]: Finished difference Result 8329 states and 14092 transitions. [2024-11-22 07:41:18,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:18,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-11-22 07:41:18,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:18,341 INFO L225 Difference]: With dead ends: 8329 [2024-11-22 07:41:18,341 INFO L226 Difference]: Without dead ends: 5353 [2024-11-22 07:41:18,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:18,352 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 378 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:18,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1451 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:18,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2024-11-22 07:41:18,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 5347. [2024-11-22 07:41:18,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 3570 states have (on average 1.538375350140056) internal successors, (5492), 3600 states have internal predecessors, (5492), 1744 states have call successors, (1744), 32 states have call predecessors, (1744), 32 states have return successors, (1744), 1714 states have call predecessors, (1744), 1744 states have call successors, (1744) [2024-11-22 07:41:18,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 8980 transitions. [2024-11-22 07:41:18,771 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 8980 transitions. Word has length 785 [2024-11-22 07:41:18,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:18,772 INFO L471 AbstractCegarLoop]: Abstraction has 5347 states and 8980 transitions. [2024-11-22 07:41:18,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:18,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 8980 transitions. [2024-11-22 07:41:18,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-22 07:41:18,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:18,825 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:18,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:41:18,825 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:18,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:18,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1504597051, now seen corresponding path program 1 times [2024-11-22 07:41:18,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:18,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906685846] [2024-11-22 07:41:18,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:18,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:19,045 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-22 07:41:19,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:19,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906685846] [2024-11-22 07:41:19,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906685846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:19,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:19,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:19,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283190118] [2024-11-22 07:41:19,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:19,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:19,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:19,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:19,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:19,049 INFO L87 Difference]: Start difference. First operand 5347 states and 8980 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:19,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:19,445 INFO L93 Difference]: Finished difference Result 15333 states and 25686 transitions. [2024-11-22 07:41:19,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:19,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-11-22 07:41:19,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:19,528 INFO L225 Difference]: With dead ends: 15333 [2024-11-22 07:41:19,528 INFO L226 Difference]: Without dead ends: 9989 [2024-11-22 07:41:19,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:19,551 INFO L432 NwaCegarLoop]: 893 mSDtfsCounter, 359 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:19,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1501 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:19,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9989 states. [2024-11-22 07:41:20,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9989 to 9979. [2024-11-22 07:41:20,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9979 states, 6546 states have (on average 1.5172624503513596) internal successors, (9932), 6608 states have internal predecessors, (9932), 3368 states have call successors, (3368), 64 states have call predecessors, (3368), 64 states have return successors, (3368), 3306 states have call predecessors, (3368), 3368 states have call successors, (3368) [2024-11-22 07:41:20,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9979 states to 9979 states and 16668 transitions. [2024-11-22 07:41:20,417 INFO L78 Accepts]: Start accepts. Automaton has 9979 states and 16668 transitions. Word has length 785 [2024-11-22 07:41:20,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:20,419 INFO L471 AbstractCegarLoop]: Abstraction has 9979 states and 16668 transitions. [2024-11-22 07:41:20,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:20,420 INFO L276 IsEmpty]: Start isEmpty. Operand 9979 states and 16668 transitions. [2024-11-22 07:41:20,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-22 07:41:20,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:20,433 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:20,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:41:20,433 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:20,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:20,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1972721795, now seen corresponding path program 1 times [2024-11-22 07:41:20,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:20,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723341820] [2024-11-22 07:41:20,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:20,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-22 07:41:20,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:20,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723341820] [2024-11-22 07:41:20,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723341820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:20,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:20,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:20,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941009077] [2024-11-22 07:41:20,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:20,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:20,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:20,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:20,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:20,697 INFO L87 Difference]: Start difference. First operand 9979 states and 16668 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:21,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:21,556 INFO L93 Difference]: Finished difference Result 29931 states and 49998 transitions. [2024-11-22 07:41:21,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:21,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-11-22 07:41:21,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:21,685 INFO L225 Difference]: With dead ends: 29931 [2024-11-22 07:41:21,685 INFO L226 Difference]: Without dead ends: 19955 [2024-11-22 07:41:21,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:21,736 INFO L432 NwaCegarLoop]: 626 mSDtfsCounter, 598 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:21,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1238 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:21,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19955 states. [2024-11-22 07:41:23,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19955 to 19953. [2024-11-22 07:41:23,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19953 states, 13088 states have (on average 1.5125305623471883) internal successors, (19796), 13212 states have internal predecessors, (19796), 6736 states have call successors, (6736), 128 states have call predecessors, (6736), 128 states have return successors, (6736), 6612 states have call predecessors, (6736), 6736 states have call successors, (6736) [2024-11-22 07:41:23,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19953 states to 19953 states and 33268 transitions. [2024-11-22 07:41:23,146 INFO L78 Accepts]: Start accepts. Automaton has 19953 states and 33268 transitions. Word has length 785 [2024-11-22 07:41:23,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:23,147 INFO L471 AbstractCegarLoop]: Abstraction has 19953 states and 33268 transitions. [2024-11-22 07:41:23,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:23,147 INFO L276 IsEmpty]: Start isEmpty. Operand 19953 states and 33268 transitions. [2024-11-22 07:41:23,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-22 07:41:23,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:23,160 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:23,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:41:23,161 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:23,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:23,161 INFO L85 PathProgramCache]: Analyzing trace with hash 283778053, now seen corresponding path program 1 times [2024-11-22 07:41:23,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:23,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553516247] [2024-11-22 07:41:23,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:23,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:23,574 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-22 07:41:23,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:23,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553516247] [2024-11-22 07:41:23,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553516247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:23,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:23,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:23,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421877039] [2024-11-22 07:41:23,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:23,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:23,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:23,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:23,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:23,578 INFO L87 Difference]: Start difference. First operand 19953 states and 33268 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:24,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:24,666 INFO L93 Difference]: Finished difference Result 40065 states and 66662 transitions. [2024-11-22 07:41:24,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:24,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 785 [2024-11-22 07:41:24,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:24,793 INFO L225 Difference]: With dead ends: 40065 [2024-11-22 07:41:24,794 INFO L226 Difference]: Without dead ends: 20115 [2024-11-22 07:41:24,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:24,863 INFO L432 NwaCegarLoop]: 799 mSDtfsCounter, 318 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:24,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1402 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:24,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20115 states. [2024-11-22 07:41:25,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20115 to 14513. [2024-11-22 07:41:25,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14513 states, 10336 states have (on average 1.5514705882352942) internal successors, (16036), 10396 states have internal predecessors, (16036), 4080 states have call successors, (4080), 96 states have call predecessors, (4080), 96 states have return successors, (4080), 4020 states have call predecessors, (4080), 4080 states have call successors, (4080) [2024-11-22 07:41:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14513 states to 14513 states and 24196 transitions. [2024-11-22 07:41:25,926 INFO L78 Accepts]: Start accepts. Automaton has 14513 states and 24196 transitions. Word has length 785 [2024-11-22 07:41:25,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:25,927 INFO L471 AbstractCegarLoop]: Abstraction has 14513 states and 24196 transitions. [2024-11-22 07:41:25,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand 14513 states and 24196 transitions. [2024-11-22 07:41:25,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-22 07:41:25,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:25,939 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:25,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:41:25,939 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:25,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:25,940 INFO L85 PathProgramCache]: Analyzing trace with hash -727339197, now seen corresponding path program 1 times [2024-11-22 07:41:25,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:25,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886510789] [2024-11-22 07:41:25,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:25,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-22 07:41:26,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:26,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886510789] [2024-11-22 07:41:26,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886510789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:26,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:26,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:41:26,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272578076] [2024-11-22 07:41:26,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:26,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:41:26,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:26,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:41:26,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:41:26,583 INFO L87 Difference]: Start difference. First operand 14513 states and 24196 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2024-11-22 07:41:29,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:29,241 INFO L93 Difference]: Finished difference Result 58043 states and 96775 transitions. [2024-11-22 07:41:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:41:29,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) Word has length 785 [2024-11-22 07:41:29,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:29,437 INFO L225 Difference]: With dead ends: 58043 [2024-11-22 07:41:29,438 INFO L226 Difference]: Without dead ends: 43533 [2024-11-22 07:41:29,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:41:29,493 INFO L432 NwaCegarLoop]: 1354 mSDtfsCounter, 937 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:29,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 3132 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 07:41:29,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43533 states. [2024-11-22 07:41:32,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43533 to 43497. [2024-11-22 07:41:32,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43497 states, 30968 states have (on average 1.5508912425729786) internal successors, (48028), 31148 states have internal predecessors, (48028), 12240 states have call successors, (12240), 288 states have call predecessors, (12240), 288 states have return successors, (12240), 12060 states have call predecessors, (12240), 12240 states have call successors, (12240) [2024-11-22 07:41:32,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43497 states to 43497 states and 72508 transitions. [2024-11-22 07:41:32,232 INFO L78 Accepts]: Start accepts. Automaton has 43497 states and 72508 transitions. Word has length 785 [2024-11-22 07:41:32,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:32,233 INFO L471 AbstractCegarLoop]: Abstraction has 43497 states and 72508 transitions. [2024-11-22 07:41:32,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 2 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2024-11-22 07:41:32,233 INFO L276 IsEmpty]: Start isEmpty. Operand 43497 states and 72508 transitions. [2024-11-22 07:41:32,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2024-11-22 07:41:32,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:32,259 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:32,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 07:41:32,259 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:32,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:32,260 INFO L85 PathProgramCache]: Analyzing trace with hash -894789489, now seen corresponding path program 1 times [2024-11-22 07:41:32,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:32,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158096721] [2024-11-22 07:41:32,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:32,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:32,579 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-22 07:41:32,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:32,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158096721] [2024-11-22 07:41:32,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158096721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:32,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:32,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:32,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001512211] [2024-11-22 07:41:32,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:32,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:32,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:32,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:32,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:32,582 INFO L87 Difference]: Start difference. First operand 43497 states and 72508 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:35,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:35,545 INFO L93 Difference]: Finished difference Result 108739 states and 181170 transitions. [2024-11-22 07:41:35,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:35,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 786 [2024-11-22 07:41:35,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:35,865 INFO L225 Difference]: With dead ends: 108739 [2024-11-22 07:41:35,865 INFO L226 Difference]: Without dead ends: 65245 [2024-11-22 07:41:35,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:35,969 INFO L432 NwaCegarLoop]: 612 mSDtfsCounter, 375 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:35,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1219 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:36,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65245 states. [2024-11-22 07:41:40,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65245 to 65243. [2024-11-22 07:41:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65243 states, 46450 states have (on average 1.5467814854682453) internal successors, (71848), 46720 states have internal predecessors, (71848), 18360 states have call successors, (18360), 432 states have call predecessors, (18360), 432 states have return successors, (18360), 18090 states have call predecessors, (18360), 18360 states have call successors, (18360) [2024-11-22 07:41:40,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65243 states to 65243 states and 108568 transitions. [2024-11-22 07:41:40,676 INFO L78 Accepts]: Start accepts. Automaton has 65243 states and 108568 transitions. Word has length 786 [2024-11-22 07:41:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:40,678 INFO L471 AbstractCegarLoop]: Abstraction has 65243 states and 108568 transitions. [2024-11-22 07:41:40,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:40,678 INFO L276 IsEmpty]: Start isEmpty. Operand 65243 states and 108568 transitions. [2024-11-22 07:41:40,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2024-11-22 07:41:40,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:40,725 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:41:40,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 07:41:40,725 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:40,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:40,726 INFO L85 PathProgramCache]: Analyzing trace with hash 2028370509, now seen corresponding path program 1 times [2024-11-22 07:41:40,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:40,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841136568] [2024-11-22 07:41:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:40,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:41,182 INFO L134 CoverageAnalysis]: Checked inductivity of 31500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31500 trivial. 0 not checked. [2024-11-22 07:41:41,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:41,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841136568] [2024-11-22 07:41:41,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841136568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:41,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:41,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:41,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873445586] [2024-11-22 07:41:41,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:41,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:41,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:41,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:41,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:41,186 INFO L87 Difference]: Start difference. First operand 65243 states and 108568 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) [2024-11-22 07:41:46,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:46,978 INFO L93 Difference]: Finished difference Result 195723 states and 325698 transitions. [2024-11-22 07:41:46,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:46,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (126), 1 states have call predecessors, (126), 1 states have return successors, (126), 1 states have call predecessors, (126), 1 states have call successors, (126) Word has length 786 [2024-11-22 07:41:46,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:47,762 INFO L225 Difference]: With dead ends: 195723 [2024-11-22 07:41:47,762 INFO L226 Difference]: Without dead ends: 130483 [2024-11-22 07:41:47,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:47,912 INFO L432 NwaCegarLoop]: 687 mSDtfsCounter, 368 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:47,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1301 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:47,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130483 states.