./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-19.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-19.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 5de4c46c7cdadd96e091f691a19e362de9991e387636643426a8b01f7f6942d0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:41:50,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:41:50,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:41:50,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:41:50,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:41:50,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:41:50,680 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:41:50,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:41:50,681 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:41:50,681 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:41:50,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:41:50,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:41:50,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:41:50,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:41:50,685 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:41:50,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:41:50,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:41:50,686 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:41:50,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:41:50,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:41:50,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:41:50,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:41:50,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:41:50,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:41:50,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:41:50,692 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:41:50,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:41:50,693 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:41:50,693 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:41:50,693 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:41:50,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:41:50,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:41:50,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:41:50,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:41:50,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:41:50,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:41:50,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:41:50,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:41:50,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:41:50,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:41:50,696 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:41:50,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:41:50,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5de4c46c7cdadd96e091f691a19e362de9991e387636643426a8b01f7f6942d0 [2024-11-22 07:41:50,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:41:50,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:41:50,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:41:50,990 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:41:50,991 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:41:50,992 INFO L431 ainManager$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-19.i [2024-11-22 07:41:52,354 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:41:52,607 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:41:52,607 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-19.i [2024-11-22 07:41:52,626 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d1a805de/e70b10656f9046d1b5938ff5a80c7b75/FLAG19c7742c5 [2024-11-22 07:41:52,642 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d1a805de/e70b10656f9046d1b5938ff5a80c7b75 [2024-11-22 07:41:52,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:41:52,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:41:52,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:41:52,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:41:52,651 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:41:52,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:41:52" (1/1) ... [2024-11-22 07:41:52,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a3d3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:52, skipping insertion in model container [2024-11-22 07:41:52,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:41:52" (1/1) ... [2024-11-22 07:41:52,691 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:41:52,838 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-19.i[916,929] [2024-11-22 07:41:53,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:41:53,034 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:41:53,044 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-19.i[916,929] [2024-11-22 07:41:53,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:41:53,143 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:41:53,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53 WrapperNode [2024-11-22 07:41:53,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:41:53,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:41:53,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:41:53,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:41:53,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,282 INFO L138 Inliner]: procedures = 26, calls = 103, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 743 [2024-11-22 07:41:53,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:41:53,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:41:53,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:41:53,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:41:53,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,321 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,425 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 07:41:53,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,468 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:41:53,535 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:41:53,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:41:53,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:41:53,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (1/1) ... [2024-11-22 07:41:53,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:41:53,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:41:53,573 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 07:41:53,577 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 07:41:53,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:41:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:41:53,619 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:41:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:41:53,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:41:53,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:41:53,761 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:41:53,763 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:41:54,942 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-22 07:41:54,943 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:41:54,983 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:41:54,984 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:41:54,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:41:54 BoogieIcfgContainer [2024-11-22 07:41:54,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:41:54,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:41:54,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:41:54,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:41:54,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:41:52" (1/3) ... [2024-11-22 07:41:54,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc27aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:41:54, skipping insertion in model container [2024-11-22 07:41:55,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:41:53" (2/3) ... [2024-11-22 07:41:55,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc27aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:41:55, skipping insertion in model container [2024-11-22 07:41:55,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:41:54" (3/3) ... [2024-11-22 07:41:55,006 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-19.i [2024-11-22 07:41:55,047 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:41:55,051 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:41:55,185 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:41:55,200 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;@45a83f25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:41:55,204 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:41:55,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 303 states, 210 states have (on average 1.6142857142857143) internal successors, (339), 211 states have internal predecessors, (339), 90 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 07:41:55,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 07:41:55,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:55,274 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:55,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:55,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:55,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1421711827, now seen corresponding path program 1 times [2024-11-22 07:41:55,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:55,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118766138] [2024-11-22 07:41:55,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:55,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:55,958 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 178 refuted. 0 times theorem prover too weak. 15842 trivial. 0 not checked. [2024-11-22 07:41:55,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:55,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118766138] [2024-11-22 07:41:55,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118766138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:41:55,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424104445] [2024-11-22 07:41:55,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:55,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:41:55,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:41:55,967 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 07:41:55,975 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 07:41:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:56,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 07:41:56,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:41:56,428 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 15842 trivial. 0 not checked. [2024-11-22 07:41:56,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:41:56,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424104445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:56,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:41:56,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 07:41:56,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899056378] [2024-11-22 07:41:56,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:56,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:41:56,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:56,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:41:56,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:41:56,465 INFO L87 Difference]: Start difference. First operand has 303 states, 210 states have (on average 1.6142857142857143) internal successors, (339), 211 states have internal predecessors, (339), 90 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) Second operand has 2 states, 2 states have (on average 74.5) internal successors, (149), 2 states have internal predecessors, (149), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 2 states have call successors, (90) [2024-11-22 07:41:56,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:56,536 INFO L93 Difference]: Finished difference Result 594 states and 1112 transitions. [2024-11-22 07:41:56,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:41:56,541 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 74.5) internal successors, (149), 2 states have internal predecessors, (149), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 2 states have call successors, (90) Word has length 594 [2024-11-22 07:41:56,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:56,551 INFO L225 Difference]: With dead ends: 594 [2024-11-22 07:41:56,553 INFO L226 Difference]: Without dead ends: 294 [2024-11-22 07:41:56,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 595 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 07:41:56,565 INFO L432 NwaCegarLoop]: 498 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, 498 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 07:41:56,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-22 07:41:56,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2024-11-22 07:41:56,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 202 states have (on average 1.5742574257425743) internal successors, (318), 202 states have internal predecessors, (318), 90 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 07:41:56,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 498 transitions. [2024-11-22 07:41:56,657 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 498 transitions. Word has length 594 [2024-11-22 07:41:56,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:56,659 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 498 transitions. [2024-11-22 07:41:56,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 74.5) internal successors, (149), 2 states have internal predecessors, (149), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 2 states have call successors, (90) [2024-11-22 07:41:56,660 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 498 transitions. [2024-11-22 07:41:56,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 07:41:56,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:56,673 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:56,686 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 07:41:56,877 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 07:41:56,879 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:56,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:56,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1787454339, now seen corresponding path program 1 times [2024-11-22 07:41:56,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:56,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238085212] [2024-11-22 07:41:56,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:56,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:57,318 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:41:57,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:57,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238085212] [2024-11-22 07:41:57,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238085212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:57,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:57,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:57,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210037567] [2024-11-22 07:41:57,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:57,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:57,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:57,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:57,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:57,325 INFO L87 Difference]: Start difference. First operand 294 states and 498 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:41:57,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:57,440 INFO L93 Difference]: Finished difference Result 774 states and 1321 transitions. [2024-11-22 07:41:57,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:57,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-22 07:41:57,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:57,452 INFO L225 Difference]: With dead ends: 774 [2024-11-22 07:41:57,453 INFO L226 Difference]: Without dead ends: 483 [2024-11-22 07:41:57,455 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 07:41:57,457 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 305 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:57,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1049 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 07:41:57,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-22 07:41:57,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 480. [2024-11-22 07:41:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 358 states have (on average 1.6229050279329609) internal successors, (581), 359 states have internal predecessors, (581), 119 states have call successors, (119), 2 states have call predecessors, (119), 2 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-22 07:41:57,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 819 transitions. [2024-11-22 07:41:57,531 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 819 transitions. Word has length 594 [2024-11-22 07:41:57,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:57,535 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 819 transitions. [2024-11-22 07:41:57,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:41:57,535 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 819 transitions. [2024-11-22 07:41:57,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 07:41:57,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:57,549 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:57,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:41:57,550 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:57,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:57,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1291359231, now seen corresponding path program 1 times [2024-11-22 07:41:57,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:57,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801713556] [2024-11-22 07:41:57,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:57,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:58,006 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:41:58,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:58,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801713556] [2024-11-22 07:41:58,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801713556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:58,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:58,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:58,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022776364] [2024-11-22 07:41:58,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:58,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:58,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:58,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:58,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:58,015 INFO L87 Difference]: Start difference. First operand 480 states and 819 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:41:58,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:58,095 INFO L93 Difference]: Finished difference Result 1301 states and 2215 transitions. [2024-11-22 07:41:58,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:58,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-22 07:41:58,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:58,115 INFO L225 Difference]: With dead ends: 1301 [2024-11-22 07:41:58,115 INFO L226 Difference]: Without dead ends: 824 [2024-11-22 07:41:58,118 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 07:41:58,120 INFO L432 NwaCegarLoop]: 647 mSDtfsCounter, 291 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:58,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1134 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:58,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-11-22 07:41:58,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 821. [2024-11-22 07:41:58,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 612 states have (on average 1.6094771241830066) internal successors, (985), 615 states have internal predecessors, (985), 204 states have call successors, (204), 4 states have call predecessors, (204), 4 states have return successors, (204), 201 states have call predecessors, (204), 204 states have call successors, (204) [2024-11-22 07:41:58,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1393 transitions. [2024-11-22 07:41:58,190 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1393 transitions. Word has length 594 [2024-11-22 07:41:58,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:58,194 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1393 transitions. [2024-11-22 07:41:58,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:41:58,194 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1393 transitions. [2024-11-22 07:41:58,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 07:41:58,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:58,208 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:58,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:41:58,209 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:58,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:58,210 INFO L85 PathProgramCache]: Analyzing trace with hash 94844163, now seen corresponding path program 1 times [2024-11-22 07:41:58,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:58,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751106552] [2024-11-22 07:41:58,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:58,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:41:58,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:58,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751106552] [2024-11-22 07:41:58,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751106552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:58,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:58,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:41:58,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280608689] [2024-11-22 07:41:58,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:58,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:41:58,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:58,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:41:58,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:41:58,539 INFO L87 Difference]: Start difference. First operand 821 states and 1393 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:41:58,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:41:58,675 INFO L93 Difference]: Finished difference Result 2219 states and 3748 transitions. [2024-11-22 07:41:58,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:41:58,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-22 07:41:58,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:41:58,683 INFO L225 Difference]: With dead ends: 2219 [2024-11-22 07:41:58,684 INFO L226 Difference]: Without dead ends: 1401 [2024-11-22 07:41:58,687 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 07:41:58,688 INFO L432 NwaCegarLoop]: 684 mSDtfsCounter, 265 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:41:58,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1166 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:41:58,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2024-11-22 07:41:58,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1398. [2024-11-22 07:41:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1013 states have (on average 1.5715695952615991) internal successors, (1592), 1020 states have internal predecessors, (1592), 376 states have call successors, (376), 8 states have call predecessors, (376), 8 states have return successors, (376), 369 states have call predecessors, (376), 376 states have call successors, (376) [2024-11-22 07:41:58,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 2344 transitions. [2024-11-22 07:41:58,767 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 2344 transitions. Word has length 594 [2024-11-22 07:41:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:41:58,768 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 2344 transitions. [2024-11-22 07:41:58,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:41:58,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 2344 transitions. [2024-11-22 07:41:58,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 07:41:58,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:41:58,779 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:41:58,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:41:58,781 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:41:58,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:41:58,782 INFO L85 PathProgramCache]: Analyzing trace with hash 454247491, now seen corresponding path program 1 times [2024-11-22 07:41:58,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:41:58,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271122730] [2024-11-22 07:41:58,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:41:58,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:41:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:41:59,619 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:41:59,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:41:59,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271122730] [2024-11-22 07:41:59,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271122730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:41:59,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:41:59,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:41:59,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402424439] [2024-11-22 07:41:59,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:41:59,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:41:59,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:41:59,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:41:59,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:41:59,622 INFO L87 Difference]: Start difference. First operand 1398 states and 2344 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:00,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:42:00,441 INFO L93 Difference]: Finished difference Result 5344 states and 8932 transitions. [2024-11-22 07:42:00,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:42:00,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-22 07:42:00,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:42:00,461 INFO L225 Difference]: With dead ends: 5344 [2024-11-22 07:42:00,461 INFO L226 Difference]: Without dead ends: 3949 [2024-11-22 07:42:00,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:42:00,467 INFO L432 NwaCegarLoop]: 837 mSDtfsCounter, 687 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 07:42:00,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1573 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 07:42:00,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2024-11-22 07:42:00,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3084. [2024-11-22 07:42:00,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 2359 states have (on average 1.5968630775752437) internal successors, (3767), 2374 states have internal predecessors, (3767), 708 states have call successors, (708), 16 states have call predecessors, (708), 16 states have return successors, (708), 693 states have call predecessors, (708), 708 states have call successors, (708) [2024-11-22 07:42:00,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 5183 transitions. [2024-11-22 07:42:00,628 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 5183 transitions. Word has length 594 [2024-11-22 07:42:00,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:42:00,629 INFO L471 AbstractCegarLoop]: Abstraction has 3084 states and 5183 transitions. [2024-11-22 07:42:00,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 5183 transitions. [2024-11-22 07:42:00,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 07:42:00,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:42:00,634 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:00,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:42:00,635 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:42:00,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:42:00,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1841032901, now seen corresponding path program 1 times [2024-11-22 07:42:00,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:42:00,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397899368] [2024-11-22 07:42:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:42:00,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:42:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:42:01,068 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:42:01,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:42:01,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397899368] [2024-11-22 07:42:01,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397899368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:42:01,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:42:01,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:42:01,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054678191] [2024-11-22 07:42:01,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:42:01,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:42:01,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:42:01,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:42:01,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:42:01,071 INFO L87 Difference]: Start difference. First operand 3084 states and 5183 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:01,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:42:01,303 INFO L93 Difference]: Finished difference Result 8822 states and 14811 transitions. [2024-11-22 07:42:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:42:01,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-22 07:42:01,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:42:01,332 INFO L225 Difference]: With dead ends: 8822 [2024-11-22 07:42:01,333 INFO L226 Difference]: Without dead ends: 5741 [2024-11-22 07:42:01,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:42:01,344 INFO L432 NwaCegarLoop]: 640 mSDtfsCounter, 291 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:42:01,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1126 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:42:01,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5741 states. [2024-11-22 07:42:01,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5741 to 5739. [2024-11-22 07:42:01,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5739 states, 4290 states have (on average 1.5715617715617716) internal successors, (6742), 4320 states have internal predecessors, (6742), 1416 states have call successors, (1416), 32 states have call predecessors, (1416), 32 states have return successors, (1416), 1386 states have call predecessors, (1416), 1416 states have call successors, (1416) [2024-11-22 07:42:01,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5739 states to 5739 states and 9574 transitions. [2024-11-22 07:42:01,685 INFO L78 Accepts]: Start accepts. Automaton has 5739 states and 9574 transitions. Word has length 594 [2024-11-22 07:42:01,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:42:01,686 INFO L471 AbstractCegarLoop]: Abstraction has 5739 states and 9574 transitions. [2024-11-22 07:42:01,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:01,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5739 states and 9574 transitions. [2024-11-22 07:42:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 07:42:01,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:42:01,693 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:01,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:42:01,694 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:42:01,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:42:01,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1932262015, now seen corresponding path program 1 times [2024-11-22 07:42:01,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:42:01,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026780808] [2024-11-22 07:42:01,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:42:01,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:42:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:42:02,458 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:42:02,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:42:02,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026780808] [2024-11-22 07:42:02,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026780808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:42:02,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:42:02,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:42:02,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935242330] [2024-11-22 07:42:02,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:42:02,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:42:02,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:42:02,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:42:02,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:42:02,462 INFO L87 Difference]: Start difference. First operand 5739 states and 9574 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:03,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:42:03,583 INFO L93 Difference]: Finished difference Result 11239 states and 18715 transitions. [2024-11-22 07:42:03,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:42:03,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-22 07:42:03,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:42:03,634 INFO L225 Difference]: With dead ends: 11239 [2024-11-22 07:42:03,635 INFO L226 Difference]: Without dead ends: 8158 [2024-11-22 07:42:03,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:42:03,648 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 960 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 07:42:03,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 1443 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 07:42:03,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8158 states. [2024-11-22 07:42:04,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8158 to 5067. [2024-11-22 07:42:04,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5067 states, 4290 states have (on average 1.6564102564102565) internal successors, (7106), 4304 states have internal predecessors, (7106), 752 states have call successors, (752), 24 states have call predecessors, (752), 24 states have return successors, (752), 738 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-22 07:42:04,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5067 states to 5067 states and 8610 transitions. [2024-11-22 07:42:04,084 INFO L78 Accepts]: Start accepts. Automaton has 5067 states and 8610 transitions. Word has length 594 [2024-11-22 07:42:04,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:42:04,085 INFO L471 AbstractCegarLoop]: Abstraction has 5067 states and 8610 transitions. [2024-11-22 07:42:04,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:04,089 INFO L276 IsEmpty]: Start isEmpty. Operand 5067 states and 8610 transitions. [2024-11-22 07:42:04,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 07:42:04,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:42:04,098 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:04,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:42:04,098 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:42:04,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:42:04,099 INFO L85 PathProgramCache]: Analyzing trace with hash 673761539, now seen corresponding path program 1 times [2024-11-22 07:42:04,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:42:04,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300687517] [2024-11-22 07:42:04,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:42:04,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:42:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:42:04,839 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:42:04,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:42:04,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300687517] [2024-11-22 07:42:04,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300687517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:42:04,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:42:04,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:42:04,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533075383] [2024-11-22 07:42:04,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:42:04,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:42:04,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:42:04,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:42:04,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:42:04,842 INFO L87 Difference]: Start difference. First operand 5067 states and 8610 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:05,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:42:05,286 INFO L93 Difference]: Finished difference Result 15195 states and 25824 transitions. [2024-11-22 07:42:05,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:42:05,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-22 07:42:05,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:42:05,346 INFO L225 Difference]: With dead ends: 15195 [2024-11-22 07:42:05,346 INFO L226 Difference]: Without dead ends: 10131 [2024-11-22 07:42:05,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:42:05,365 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 274 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:42:05,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 984 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:42:05,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10131 states. [2024-11-22 07:42:06,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10131 to 10129. [2024-11-22 07:42:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10129 states, 8576 states have (on average 1.6529850746268657) internal successors, (14176), 8604 states have internal predecessors, (14176), 1504 states have call successors, (1504), 48 states have call predecessors, (1504), 48 states have return successors, (1504), 1476 states have call predecessors, (1504), 1504 states have call successors, (1504) [2024-11-22 07:42:06,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10129 states to 10129 states and 17184 transitions. [2024-11-22 07:42:06,175 INFO L78 Accepts]: Start accepts. Automaton has 10129 states and 17184 transitions. Word has length 594 [2024-11-22 07:42:06,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:42:06,176 INFO L471 AbstractCegarLoop]: Abstraction has 10129 states and 17184 transitions. [2024-11-22 07:42:06,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand 10129 states and 17184 transitions. [2024-11-22 07:42:06,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-22 07:42:06,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:42:06,190 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:06,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:42:06,191 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:42:06,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:42:06,192 INFO L85 PathProgramCache]: Analyzing trace with hash 86955525, now seen corresponding path program 1 times [2024-11-22 07:42:06,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:42:06,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966065943] [2024-11-22 07:42:06,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:42:06,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:42:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:42:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:42:06,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:42:06,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966065943] [2024-11-22 07:42:06,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966065943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:42:06,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:42:06,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:42:06,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294711909] [2024-11-22 07:42:06,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:42:06,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:42:06,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:42:06,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:42:06,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:42:06,659 INFO L87 Difference]: Start difference. First operand 10129 states and 17184 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:07,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:42:07,657 INFO L93 Difference]: Finished difference Result 30381 states and 51546 transitions. [2024-11-22 07:42:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:42:07,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 594 [2024-11-22 07:42:07,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:42:07,745 INFO L225 Difference]: With dead ends: 30381 [2024-11-22 07:42:07,746 INFO L226 Difference]: Without dead ends: 20255 [2024-11-22 07:42:07,784 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 07:42:07,786 INFO L432 NwaCegarLoop]: 647 mSDtfsCounter, 317 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:42:07,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 1136 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:42:07,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20255 states. [2024-11-22 07:42:09,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20255 to 20253. [2024-11-22 07:42:09,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20253 states, 17148 states have (on average 1.6512712852810822) internal successors, (28316), 17204 states have internal predecessors, (28316), 3008 states have call successors, (3008), 96 states have call predecessors, (3008), 96 states have return successors, (3008), 2952 states have call predecessors, (3008), 3008 states have call successors, (3008) [2024-11-22 07:42:09,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20253 states to 20253 states and 34332 transitions. [2024-11-22 07:42:09,277 INFO L78 Accepts]: Start accepts. Automaton has 20253 states and 34332 transitions. Word has length 594 [2024-11-22 07:42:09,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:42:09,279 INFO L471 AbstractCegarLoop]: Abstraction has 20253 states and 34332 transitions. [2024-11-22 07:42:09,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:09,279 INFO L276 IsEmpty]: Start isEmpty. Operand 20253 states and 34332 transitions. [2024-11-22 07:42:09,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2024-11-22 07:42:09,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:42:09,293 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:09,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:42:09,294 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:42:09,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:42:09,295 INFO L85 PathProgramCache]: Analyzing trace with hash -553815874, now seen corresponding path program 1 times [2024-11-22 07:42:09,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:42:09,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616861950] [2024-11-22 07:42:09,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:42:09,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:42:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:42:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:42:10,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:42:10,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616861950] [2024-11-22 07:42:10,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616861950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:42:10,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:42:10,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:42:10,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018040494] [2024-11-22 07:42:10,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:42:10,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:42:10,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:42:10,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:42:10,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:42:10,099 INFO L87 Difference]: Start difference. First operand 20253 states and 34332 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:11,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:42:11,567 INFO L93 Difference]: Finished difference Result 51424 states and 87100 transitions. [2024-11-22 07:42:11,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:42:11,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 595 [2024-11-22 07:42:11,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:42:11,716 INFO L225 Difference]: With dead ends: 51424 [2024-11-22 07:42:11,716 INFO L226 Difference]: Without dead ends: 31174 [2024-11-22 07:42:11,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:42:11,787 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 289 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:42:11,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 1036 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:42:11,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31174 states. [2024-11-22 07:42:14,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31174 to 31060. [2024-11-22 07:42:14,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31060 states, 26186 states have (on average 1.6382036202550982) internal successors, (42898), 26267 states have internal predecessors, (42898), 4712 states have call successors, (4712), 161 states have call predecessors, (4712), 161 states have return successors, (4712), 4631 states have call predecessors, (4712), 4712 states have call successors, (4712) [2024-11-22 07:42:14,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31060 states to 31060 states and 52322 transitions. [2024-11-22 07:42:14,441 INFO L78 Accepts]: Start accepts. Automaton has 31060 states and 52322 transitions. Word has length 595 [2024-11-22 07:42:14,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:42:14,442 INFO L471 AbstractCegarLoop]: Abstraction has 31060 states and 52322 transitions. [2024-11-22 07:42:14,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:14,443 INFO L276 IsEmpty]: Start isEmpty. Operand 31060 states and 52322 transitions. [2024-11-22 07:42:14,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2024-11-22 07:42:14,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:42:14,462 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:14,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 07:42:14,462 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:42:14,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:42:14,463 INFO L85 PathProgramCache]: Analyzing trace with hash 23776324, now seen corresponding path program 1 times [2024-11-22 07:42:14,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:42:14,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121663389] [2024-11-22 07:42:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:42:14,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:42:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:42:16,232 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:42:16,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:42:16,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121663389] [2024-11-22 07:42:16,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121663389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:42:16,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:42:16,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:42:16,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867606984] [2024-11-22 07:42:16,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:42:16,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:42:16,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:42:16,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:42:16,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:42:16,236 INFO L87 Difference]: Start difference. First operand 31060 states and 52322 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:20,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:42:20,619 INFO L93 Difference]: Finished difference Result 90200 states and 152260 transitions. [2024-11-22 07:42:20,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:42:20,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 596 [2024-11-22 07:42:20,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:42:20,824 INFO L225 Difference]: With dead ends: 90200 [2024-11-22 07:42:20,824 INFO L226 Difference]: Without dead ends: 59238 [2024-11-22 07:42:20,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:42:20,885 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 328 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:42:20,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 960 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 07:42:20,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59238 states. [2024-11-22 07:42:26,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59238 to 59188. [2024-11-22 07:42:26,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59188 states, 51146 states have (on average 1.6509991006139288) internal successors, (84442), 51323 states have internal predecessors, (84442), 7784 states have call successors, (7784), 257 states have call predecessors, (7784), 257 states have return successors, (7784), 7607 states have call predecessors, (7784), 7784 states have call successors, (7784) [2024-11-22 07:42:26,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59188 states to 59188 states and 100010 transitions. [2024-11-22 07:42:26,555 INFO L78 Accepts]: Start accepts. Automaton has 59188 states and 100010 transitions. Word has length 596 [2024-11-22 07:42:26,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:42:26,556 INFO L471 AbstractCegarLoop]: Abstraction has 59188 states and 100010 transitions. [2024-11-22 07:42:26,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:26,556 INFO L276 IsEmpty]: Start isEmpty. Operand 59188 states and 100010 transitions. [2024-11-22 07:42:26,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2024-11-22 07:42:26,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:42:26,584 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:26,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 07:42:26,584 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:42:26,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:42:26,586 INFO L85 PathProgramCache]: Analyzing trace with hash 100677122, now seen corresponding path program 1 times [2024-11-22 07:42:26,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:42:26,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807321906] [2024-11-22 07:42:26,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:42:26,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:42:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:42:28,321 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:42:28,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:42:28,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807321906] [2024-11-22 07:42:28,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807321906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:42:28,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:42:28,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 07:42:28,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939340752] [2024-11-22 07:42:28,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:42:28,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 07:42:28,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:42:28,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 07:42:28,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:42:28,325 INFO L87 Difference]: Start difference. First operand 59188 states and 100010 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:35,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:42:35,499 INFO L93 Difference]: Finished difference Result 145472 states and 245956 transitions. [2024-11-22 07:42:35,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 07:42:35,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 596 [2024-11-22 07:42:35,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:42:35,815 INFO L225 Difference]: With dead ends: 145472 [2024-11-22 07:42:35,816 INFO L226 Difference]: Without dead ends: 86382 [2024-11-22 07:42:35,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-22 07:42:35,911 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 968 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 07:42:35,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 1236 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 07:42:35,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86382 states. [2024-11-22 07:42:43,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86382 to 86356. [2024-11-22 07:42:43,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86356 states, 75002 states have (on average 1.6417962187674995) internal successors, (123138), 75275 states have internal predecessors, (123138), 11000 states have call successors, (11000), 353 states have call predecessors, (11000), 353 states have return successors, (11000), 10727 states have call predecessors, (11000), 11000 states have call successors, (11000) [2024-11-22 07:42:43,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86356 states to 86356 states and 145138 transitions. [2024-11-22 07:42:43,632 INFO L78 Accepts]: Start accepts. Automaton has 86356 states and 145138 transitions. Word has length 596 [2024-11-22 07:42:43,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:42:43,635 INFO L471 AbstractCegarLoop]: Abstraction has 86356 states and 145138 transitions. [2024-11-22 07:42:43,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 6 states have internal predecessors, (149), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-22 07:42:43,635 INFO L276 IsEmpty]: Start isEmpty. Operand 86356 states and 145138 transitions. [2024-11-22 07:42:43,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-11-22 07:42:43,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:42:43,673 INFO L215 NwaCegarLoop]: trace histogram [90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:43,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 07:42:43,673 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:42:43,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:42:43,674 INFO L85 PathProgramCache]: Analyzing trace with hash 2113504212, now seen corresponding path program 1 times [2024-11-22 07:42:43,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:42:43,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097977335] [2024-11-22 07:42:43,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:42:43,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:42:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:42:44,528 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2024-11-22 07:42:44,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:42:44,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097977335] [2024-11-22 07:42:44,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097977335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:42:44,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:42:44,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:42:44,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439013617] [2024-11-22 07:42:44,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:42:44,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:42:44,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:42:44,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:42:44,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:42:44,532 INFO L87 Difference]: Start difference. First operand 86356 states and 145138 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (90), 1 states have call predecessors, (90), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90)