./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.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 d2756a3afeabee0bd07615570da162530b76933ca347aab7efd24527f8af5fb3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 15:18:04,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 15:18:04,749 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 15:18:04,753 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 15:18:04,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 15:18:04,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 15:18:04,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 15:18:04,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 15:18:04,785 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 15:18:04,785 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 15:18:04,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 15:18:04,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 15:18:04,787 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 15:18:04,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 15:18:04,788 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 15:18:04,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 15:18:04,789 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 15:18:04,792 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 15:18:04,792 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 15:18:04,792 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 15:18:04,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 15:18:04,796 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 15:18:04,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 15:18:04,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 15:18:04,797 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 15:18:04,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 15:18:04,797 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 15:18:04,798 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 15:18:04,798 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 15:18:04,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 15:18:04,798 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 15:18:04,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 15:18:04,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:18:04,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 15:18:04,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 15:18:04,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 15:18:04,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 15:18:04,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 15:18:04,799 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 15:18:04,800 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 15:18:04,800 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 15:18:04,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 15:18:04,800 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2756a3afeabee0bd07615570da162530b76933ca347aab7efd24527f8af5fb3 [2024-11-16 15:18:05,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 15:18:05,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 15:18:05,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 15:18:05,077 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 15:18:05,078 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 15:18:05,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-16 15:18:06,455 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 15:18:06,647 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 15:18:06,647 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-16 15:18:06,655 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/621d363c3/dc34b14872dd43f0885bd9a1655ae8df/FLAG14d923a3c [2024-11-16 15:18:06,665 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/621d363c3/dc34b14872dd43f0885bd9a1655ae8df [2024-11-16 15:18:06,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 15:18:06,668 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 15:18:06,670 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 15:18:06,670 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 15:18:06,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 15:18:06,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:18:06" (1/1) ... [2024-11-16 15:18:06,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1397cb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:06, skipping insertion in model container [2024-11-16 15:18:06,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:18:06" (1/1) ... [2024-11-16 15:18:06,704 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 15:18:06,828 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i[919,932] [2024-11-16 15:18:06,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:18:06,935 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 15:18:06,945 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_fillercodestructure_filler-ps-co_file-52.i[919,932] [2024-11-16 15:18:07,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 15:18:07,030 INFO L204 MainTranslator]: Completed translation [2024-11-16 15:18:07,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07 WrapperNode [2024-11-16 15:18:07,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 15:18:07,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 15:18:07,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 15:18:07,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 15:18:07,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,085 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 205 [2024-11-16 15:18:07,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 15:18:07,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 15:18:07,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 15:18:07,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 15:18:07,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,118 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]. [2024-11-16 15:18:07,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,125 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,127 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 15:18:07,132 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 15:18:07,132 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 15:18:07,132 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 15:18:07,133 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (1/1) ... [2024-11-16 15:18:07,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 15:18:07,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 15:18:07,174 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) [2024-11-16 15:18:07,179 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 [2024-11-16 15:18:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 15:18:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 15:18:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 15:18:07,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 15:18:07,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 15:18:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 15:18:07,303 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 15:18:07,306 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 15:18:07,803 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-16 15:18:07,803 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 15:18:07,818 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 15:18:07,818 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 15:18:07,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:18:07 BoogieIcfgContainer [2024-11-16 15:18:07,819 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 15:18:07,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 15:18:07,820 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 15:18:07,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 15:18:07,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:18:06" (1/3) ... [2024-11-16 15:18:07,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6da84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:18:07, skipping insertion in model container [2024-11-16 15:18:07,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:18:07" (2/3) ... [2024-11-16 15:18:07,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6da84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:18:07, skipping insertion in model container [2024-11-16 15:18:07,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:18:07" (3/3) ... [2024-11-16 15:18:07,825 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i [2024-11-16 15:18:07,838 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 15:18:07,838 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 15:18:07,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 15:18:07,888 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;@4fb3ce93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 15:18:07,888 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 15:18:07,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 66 states have (on average 1.4393939393939394) internal successors, (95), 67 states have internal predecessors, (95), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-16 15:18:07,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 15:18:07,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:18:07,903 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:18:07,904 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:18:07,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:18:07,908 INFO L85 PathProgramCache]: Analyzing trace with hash -113955529, now seen corresponding path program 1 times [2024-11-16 15:18:07,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:18:07,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457460746] [2024-11-16 15:18:07,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:18:07,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:18:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:18:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:18:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:18:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:18:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:18:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:18:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:18:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:18:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:18:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:18:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:18:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:18:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:18:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:18:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:18:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:18:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:18:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 15:18:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 15:18:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 15:18:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:18:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 15:18:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,209 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-16 15:18:08,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:18:08,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457460746] [2024-11-16 15:18:08,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457460746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:18:08,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:18:08,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 15:18:08,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307714365] [2024-11-16 15:18:08,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:18:08,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 15:18:08,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:18:08,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 15:18:08,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 15:18:08,238 INFO L87 Difference]: Start difference. First operand has 91 states, 66 states have (on average 1.4393939393939394) internal successors, (95), 67 states have internal predecessors, (95), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-16 15:18:08,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:18:08,276 INFO L93 Difference]: Finished difference Result 174 states and 293 transitions. [2024-11-16 15:18:08,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 15:18:08,279 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 155 [2024-11-16 15:18:08,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:18:08,288 INFO L225 Difference]: With dead ends: 174 [2024-11-16 15:18:08,288 INFO L226 Difference]: Without dead ends: 86 [2024-11-16 15:18:08,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 15:18:08,294 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:18:08,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:18:08,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-16 15:18:08,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-16 15:18:08,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 62 states have (on average 1.403225806451613) internal successors, (87), 62 states have internal predecessors, (87), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-16 15:18:08,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 131 transitions. [2024-11-16 15:18:08,345 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 131 transitions. Word has length 155 [2024-11-16 15:18:08,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:18:08,345 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 131 transitions. [2024-11-16 15:18:08,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-16 15:18:08,346 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 131 transitions. [2024-11-16 15:18:08,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 15:18:08,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:18:08,349 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:18:08,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 15:18:08,349 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:18:08,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:18:08,350 INFO L85 PathProgramCache]: Analyzing trace with hash -355921253, now seen corresponding path program 1 times [2024-11-16 15:18:08,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:18:08,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349193200] [2024-11-16 15:18:08,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:18:08,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:18:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:18:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:18:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:18:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:18:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:18:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:18:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:18:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:18:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:18:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:18:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:18:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:18:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:18:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:18:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:18:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:18:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:18:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 15:18:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 15:18:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 15:18:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:18:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 15:18:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:08,762 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-16 15:18:08,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:18:08,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349193200] [2024-11-16 15:18:08,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349193200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:18:08,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:18:08,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 15:18:08,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824849111] [2024-11-16 15:18:08,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:18:08,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 15:18:08,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:18:08,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 15:18:08,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:18:08,767 INFO L87 Difference]: Start difference. First operand 86 states and 131 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:08,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:18:08,837 INFO L93 Difference]: Finished difference Result 252 states and 387 transitions. [2024-11-16 15:18:08,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 15:18:08,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 155 [2024-11-16 15:18:08,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:18:08,842 INFO L225 Difference]: With dead ends: 252 [2024-11-16 15:18:08,842 INFO L226 Difference]: Without dead ends: 169 [2024-11-16 15:18:08,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:18:08,845 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 83 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:18:08,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 264 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:18:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-16 15:18:08,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2024-11-16 15:18:08,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 118 states have (on average 1.4067796610169492) internal successors, (166), 118 states have internal predecessors, (166), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-16 15:18:08,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 254 transitions. [2024-11-16 15:18:08,877 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 254 transitions. Word has length 155 [2024-11-16 15:18:08,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:18:08,877 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 254 transitions. [2024-11-16 15:18:08,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:08,878 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 254 transitions. [2024-11-16 15:18:08,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-16 15:18:08,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:18:08,880 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:18:08,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 15:18:08,880 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:18:08,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:18:08,880 INFO L85 PathProgramCache]: Analyzing trace with hash 724583877, now seen corresponding path program 1 times [2024-11-16 15:18:08,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:18:08,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239844136] [2024-11-16 15:18:08,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:18:08,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:18:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:18:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:18:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:18:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:18:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:18:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:18:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:18:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:18:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:18:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:18:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:18:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:18:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:18:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:18:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:18:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:18:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:18:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 15:18:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 15:18:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 15:18:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:18:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 15:18:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,259 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-16 15:18:09,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:18:09,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239844136] [2024-11-16 15:18:09,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239844136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:18:09,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:18:09,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 15:18:09,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683631399] [2024-11-16 15:18:09,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:18:09,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 15:18:09,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:18:09,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 15:18:09,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:18:09,262 INFO L87 Difference]: Start difference. First operand 165 states and 254 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:09,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:18:09,335 INFO L93 Difference]: Finished difference Result 489 states and 756 transitions. [2024-11-16 15:18:09,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 15:18:09,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 156 [2024-11-16 15:18:09,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:18:09,338 INFO L225 Difference]: With dead ends: 489 [2024-11-16 15:18:09,338 INFO L226 Difference]: Without dead ends: 327 [2024-11-16 15:18:09,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:18:09,343 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 88 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:18:09,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 239 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:18:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-16 15:18:09,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 324. [2024-11-16 15:18:09,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 231 states have (on average 1.406926406926407) internal successors, (325), 231 states have internal predecessors, (325), 88 states have call successors, (88), 4 states have call predecessors, (88), 4 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-16 15:18:09,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 501 transitions. [2024-11-16 15:18:09,398 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 501 transitions. Word has length 156 [2024-11-16 15:18:09,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:18:09,399 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 501 transitions. [2024-11-16 15:18:09,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:09,400 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 501 transitions. [2024-11-16 15:18:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 15:18:09,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:18:09,402 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:18:09,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 15:18:09,402 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:18:09,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:18:09,402 INFO L85 PathProgramCache]: Analyzing trace with hash -898684161, now seen corresponding path program 1 times [2024-11-16 15:18:09,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:18:09,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866123086] [2024-11-16 15:18:09,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:18:09,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:18:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:18:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:18:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:18:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:18:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:18:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:18:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:18:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:18:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:18:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:18:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:18:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:18:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:18:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:18:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:18:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:18:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:18:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 15:18:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 15:18:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 15:18:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:18:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 15:18:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:09,979 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-16 15:18:09,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:18:09,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866123086] [2024-11-16 15:18:09,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866123086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:18:09,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:18:09,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 15:18:09,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404009602] [2024-11-16 15:18:09,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:18:09,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 15:18:09,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:18:09,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 15:18:09,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:18:09,982 INFO L87 Difference]: Start difference. First operand 324 states and 501 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:10,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:18:10,089 INFO L93 Difference]: Finished difference Result 708 states and 1096 transitions. [2024-11-16 15:18:10,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 15:18:10,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157 [2024-11-16 15:18:10,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:18:10,095 INFO L225 Difference]: With dead ends: 708 [2024-11-16 15:18:10,095 INFO L226 Difference]: Without dead ends: 387 [2024-11-16 15:18:10,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:18:10,099 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 49 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 15:18:10,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 215 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 15:18:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-16 15:18:10,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 377. [2024-11-16 15:18:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 261 states have (on average 1.3754789272030652) internal successors, (359), 261 states have internal predecessors, (359), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-16 15:18:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 579 transitions. [2024-11-16 15:18:10,127 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 579 transitions. Word has length 157 [2024-11-16 15:18:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:18:10,128 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 579 transitions. [2024-11-16 15:18:10,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:10,128 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 579 transitions. [2024-11-16 15:18:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-16 15:18:10,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:18:10,130 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:18:10,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 15:18:10,130 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:18:10,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:18:10,131 INFO L85 PathProgramCache]: Analyzing trace with hash -339076575, now seen corresponding path program 1 times [2024-11-16 15:18:10,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:18:10,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324651543] [2024-11-16 15:18:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:18:10,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:18:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:18:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:18:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:18:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:18:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:18:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:18:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:18:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:18:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:18:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:18:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:18:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:18:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:18:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:18:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:18:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:18:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:18:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 15:18:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 15:18:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 15:18:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:18:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 15:18:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,276 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-16 15:18:10,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:18:10,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324651543] [2024-11-16 15:18:10,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324651543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:18:10,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:18:10,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 15:18:10,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271532322] [2024-11-16 15:18:10,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:18:10,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 15:18:10,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:18:10,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 15:18:10,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:18:10,278 INFO L87 Difference]: Start difference. First operand 377 states and 579 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:10,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:18:10,333 INFO L93 Difference]: Finished difference Result 730 states and 1133 transitions. [2024-11-16 15:18:10,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 15:18:10,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 158 [2024-11-16 15:18:10,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:18:10,336 INFO L225 Difference]: With dead ends: 730 [2024-11-16 15:18:10,336 INFO L226 Difference]: Without dead ends: 409 [2024-11-16 15:18:10,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:18:10,338 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 11 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:18:10,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 238 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:18:10,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-16 15:18:10,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 385. [2024-11-16 15:18:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 269 states have (on average 1.379182156133829) internal successors, (371), 269 states have internal predecessors, (371), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-16 15:18:10,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 591 transitions. [2024-11-16 15:18:10,366 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 591 transitions. Word has length 158 [2024-11-16 15:18:10,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:18:10,366 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 591 transitions. [2024-11-16 15:18:10,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:10,367 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 591 transitions. [2024-11-16 15:18:10,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 15:18:10,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:18:10,368 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:18:10,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 15:18:10,368 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:18:10,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:18:10,369 INFO L85 PathProgramCache]: Analyzing trace with hash 359535875, now seen corresponding path program 1 times [2024-11-16 15:18:10,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:18:10,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155833068] [2024-11-16 15:18:10,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:18:10,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:18:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:18:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:18:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:18:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:18:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:18:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:18:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:18:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:18:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:18:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:18:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:18:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:18:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:18:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:18:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:18:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:18:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:18:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 15:18:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 15:18:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 15:18:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:18:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 15:18:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-16 15:18:10,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:18:10,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155833068] [2024-11-16 15:18:10,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155833068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:18:10,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:18:10,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 15:18:10,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783397776] [2024-11-16 15:18:10,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:18:10,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 15:18:10,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:18:10,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 15:18:10,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:18:10,539 INFO L87 Difference]: Start difference. First operand 385 states and 591 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:18:10,598 INFO L93 Difference]: Finished difference Result 724 states and 1118 transitions. [2024-11-16 15:18:10,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 15:18:10,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 159 [2024-11-16 15:18:10,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:18:10,601 INFO L225 Difference]: With dead ends: 724 [2024-11-16 15:18:10,601 INFO L226 Difference]: Without dead ends: 395 [2024-11-16 15:18:10,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 15:18:10,603 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 47 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 15:18:10,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 230 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 15:18:10,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-16 15:18:10,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 386. [2024-11-16 15:18:10,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 270 states have (on average 1.3777777777777778) internal successors, (372), 270 states have internal predecessors, (372), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-16 15:18:10,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 592 transitions. [2024-11-16 15:18:10,646 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 592 transitions. Word has length 159 [2024-11-16 15:18:10,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:18:10,647 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 592 transitions. [2024-11-16 15:18:10,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:10,647 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 592 transitions. [2024-11-16 15:18:10,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 15:18:10,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:18:10,648 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:18:10,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 15:18:10,648 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:18:10,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:18:10,649 INFO L85 PathProgramCache]: Analyzing trace with hash -797659527, now seen corresponding path program 1 times [2024-11-16 15:18:10,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:18:10,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744344085] [2024-11-16 15:18:10,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:18:10,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:18:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:18:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:18:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:18:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:18:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:18:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:18:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:18:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:18:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:18:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:18:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:18:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:18:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:18:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:18:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:18:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:18:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:18:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 15:18:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 15:18:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 15:18:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:18:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 15:18:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-16 15:18:16,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:18:16,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744344085] [2024-11-16 15:18:16,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744344085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:18:16,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:18:16,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 15:18:16,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664569549] [2024-11-16 15:18:16,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:18:16,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 15:18:16,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:18:16,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 15:18:16,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-16 15:18:16,292 INFO L87 Difference]: Start difference. First operand 386 states and 592 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-16 15:18:22,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:18:22,252 INFO L93 Difference]: Finished difference Result 772 states and 1135 transitions. [2024-11-16 15:18:22,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-16 15:18:22,253 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 159 [2024-11-16 15:18:22,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:18:22,256 INFO L225 Difference]: With dead ends: 772 [2024-11-16 15:18:22,257 INFO L226 Difference]: Without dead ends: 769 [2024-11-16 15:18:22,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=637, Invalid=1813, Unknown=0, NotChecked=0, Total=2450 [2024-11-16 15:18:22,259 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 469 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 15:18:22,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 919 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 15:18:22,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-11-16 15:18:22,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 596. [2024-11-16 15:18:22,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 434 states have (on average 1.3894009216589862) internal successors, (603), 434 states have internal predecessors, (603), 154 states have call successors, (154), 7 states have call predecessors, (154), 7 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-16 15:18:22,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 911 transitions. [2024-11-16 15:18:22,306 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 911 transitions. Word has length 159 [2024-11-16 15:18:22,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:18:22,307 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 911 transitions. [2024-11-16 15:18:22,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-16 15:18:22,307 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 911 transitions. [2024-11-16 15:18:22,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 15:18:22,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:18:22,309 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:18:22,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 15:18:22,309 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:18:22,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:18:22,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1091062534, now seen corresponding path program 1 times [2024-11-16 15:18:22,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:18:22,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323746258] [2024-11-16 15:18:22,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:18:22,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:18:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 15:18:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 15:18:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 15:18:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 15:18:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 15:18:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 15:18:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 15:18:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 15:18:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 15:18:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 15:18:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 15:18:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 15:18:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 15:18:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 15:18:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 15:18:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 15:18:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 15:18:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 15:18:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 15:18:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 15:18:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 15:18:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 15:18:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 15:18:22,493 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-16 15:18:22,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 15:18:22,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323746258] [2024-11-16 15:18:22,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323746258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 15:18:22,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 15:18:22,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 15:18:22,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443247657] [2024-11-16 15:18:22,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 15:18:22,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 15:18:22,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 15:18:22,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 15:18:22,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 15:18:22,496 INFO L87 Difference]: Start difference. First operand 596 states and 911 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 15:18:22,626 INFO L93 Difference]: Finished difference Result 1257 states and 1934 transitions. [2024-11-16 15:18:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 15:18:22,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 159 [2024-11-16 15:18:22,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 15:18:22,630 INFO L225 Difference]: With dead ends: 1257 [2024-11-16 15:18:22,630 INFO L226 Difference]: Without dead ends: 718 [2024-11-16 15:18:22,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 15:18:22,632 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 144 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 15:18:22,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 503 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 15:18:22,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-16 15:18:22,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 511. [2024-11-16 15:18:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 372 states have (on average 1.3951612903225807) internal successors, (519), 372 states have internal predecessors, (519), 132 states have call successors, (132), 6 states have call predecessors, (132), 6 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-16 15:18:22,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 783 transitions. [2024-11-16 15:18:22,663 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 783 transitions. Word has length 159 [2024-11-16 15:18:22,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 15:18:22,664 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 783 transitions. [2024-11-16 15:18:22,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-16 15:18:22,664 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 783 transitions. [2024-11-16 15:18:22,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 15:18:22,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 15:18:22,665 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 15:18:22,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 15:18:22,665 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 15:18:22,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 15:18:22,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1890024166, now seen corresponding path program 1 times [2024-11-16 15:18:22,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 15:18:22,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227395560] [2024-11-16 15:18:22,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 15:18:22,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 15:18:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat