./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-66.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 ec19acff02761ce4cb6bd833355f9203a252d8e9565b5d08ccbe5e49c9ce80f5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 06:05:07,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 06:05:07,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 06:05:07,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 06:05:07,622 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 06:05:07,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 06:05:07,649 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 06:05:07,649 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 06:05:07,650 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 06:05:07,650 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 06:05:07,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 06:05:07,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 06:05:07,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 06:05:07,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 06:05:07,651 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 06:05:07,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 06:05:07,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 06:05:07,652 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 06:05:07,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 06:05:07,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 06:05:07,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 06:05:07,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 06:05:07,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 06:05:07,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 06:05:07,658 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 06:05:07,659 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 06:05:07,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 06:05:07,659 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 06:05:07,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 06:05:07,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 06:05:07,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 06:05:07,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 06:05:07,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:05:07,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 06:05:07,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 06:05:07,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 06:05:07,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 06:05:07,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 06:05:07,663 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 06:05:07,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 06:05:07,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 06:05:07,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 06:05:07,665 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec19acff02761ce4cb6bd833355f9203a252d8e9565b5d08ccbe5e49c9ce80f5 [2024-11-20 06:05:07,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 06:05:07,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 06:05:07,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 06:05:07,929 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 06:05:07,930 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 06:05:07,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-66.i [2024-11-20 06:05:09,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 06:05:09,399 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 06:05:09,400 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-66.i [2024-11-20 06:05:09,407 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f60e0e865/4c0bb665217847568e3e9628210490be/FLAG086ca2ece [2024-11-20 06:05:09,794 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f60e0e865/4c0bb665217847568e3e9628210490be [2024-11-20 06:05:09,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 06:05:09,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 06:05:09,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 06:05:09,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 06:05:09,804 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 06:05:09,805 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:05:09" (1/1) ... [2024-11-20 06:05:09,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37105ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:09, skipping insertion in model container [2024-11-20 06:05:09,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:05:09" (1/1) ... [2024-11-20 06:05:09,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 06:05:09,980 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_floatingpointinfluence_no-floats_file-66.i[916,929] [2024-11-20 06:05:10,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:05:10,041 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 06:05:10,051 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_floatingpointinfluence_no-floats_file-66.i[916,929] [2024-11-20 06:05:10,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 06:05:10,099 INFO L204 MainTranslator]: Completed translation [2024-11-20 06:05:10,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10 WrapperNode [2024-11-20 06:05:10,100 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 06:05:10,101 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 06:05:10,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 06:05:10,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 06:05:10,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,149 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-11-20 06:05:10,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 06:05:10,156 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 06:05:10,156 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 06:05:10,156 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 06:05:10,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,168 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,183 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]. [2024-11-20 06:05:10,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,183 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 06:05:10,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 06:05:10,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 06:05:10,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 06:05:10,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (1/1) ... [2024-11-20 06:05:10,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 06:05:10,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 06:05:10,234 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) [2024-11-20 06:05:10,236 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 [2024-11-20 06:05:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 06:05:10,270 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 06:05:10,270 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 06:05:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 06:05:10,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 06:05:10,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 06:05:10,333 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 06:05:10,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 06:05:10,565 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-20 06:05:10,565 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 06:05:10,578 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 06:05:10,579 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 06:05:10,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:05:10 BoogieIcfgContainer [2024-11-20 06:05:10,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 06:05:10,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 06:05:10,581 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 06:05:10,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 06:05:10,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:05:09" (1/3) ... [2024-11-20 06:05:10,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e0124e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:05:10, skipping insertion in model container [2024-11-20 06:05:10,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:05:10" (2/3) ... [2024-11-20 06:05:10,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16e0124e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:05:10, skipping insertion in model container [2024-11-20 06:05:10,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:05:10" (3/3) ... [2024-11-20 06:05:10,588 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-66.i [2024-11-20 06:05:10,602 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 06:05:10,603 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 06:05:10,652 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 06:05:10,657 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;@5504f6dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 06:05:10,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 06:05:10,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 06:05:10,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-20 06:05:10,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:05:10,670 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:05:10,670 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:05:10,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:05:10,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1691062779, now seen corresponding path program 1 times [2024-11-20 06:05:10,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:05:10,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578880806] [2024-11-20 06:05:10,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:05:10,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:05:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:05:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:05:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:05:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:05:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:05:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:05:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:05:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:05:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:05:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:05:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:05:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:05:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:10,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:05:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:05:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,008 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 06:05:11,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:05:11,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578880806] [2024-11-20 06:05:11,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578880806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:05:11,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:05:11,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 06:05:11,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146973919] [2024-11-20 06:05:11,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:05:11,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 06:05:11,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:05:11,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 06:05:11,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:05:11,038 INFO L87 Difference]: Start difference. First operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 06:05:11,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:05:11,058 INFO L93 Difference]: Finished difference Result 83 states and 140 transitions. [2024-11-20 06:05:11,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 06:05:11,060 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 89 [2024-11-20 06:05:11,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:05:11,066 INFO L225 Difference]: With dead ends: 83 [2024-11-20 06:05:11,066 INFO L226 Difference]: Without dead ends: 41 [2024-11-20 06:05:11,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 06:05:11,072 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 06:05:11,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 06:05:11,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-20 06:05:11,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-20 06:05:11,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-20 06:05:11,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2024-11-20 06:05:11,107 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 89 [2024-11-20 06:05:11,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:05:11,107 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2024-11-20 06:05:11,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 06:05:11,108 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2024-11-20 06:05:11,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-20 06:05:11,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:05:11,110 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:05:11,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 06:05:11,111 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:05:11,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:05:11,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1552521403, now seen corresponding path program 1 times [2024-11-20 06:05:11,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:05:11,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805226206] [2024-11-20 06:05:11,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:05:11,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:05:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:05:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:05:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:05:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:05:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:05:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:05:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:05:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:05:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:05:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:05:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:05:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:05:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:05:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:05:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:11,566 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 06:05:11,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:05:11,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805226206] [2024-11-20 06:05:11,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805226206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:05:11,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:05:11,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 06:05:11,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978029127] [2024-11-20 06:05:11,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:05:11,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 06:05:11,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:05:11,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 06:05:11,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:05:11,574 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 06:05:11,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:05:11,647 INFO L93 Difference]: Finished difference Result 117 states and 171 transitions. [2024-11-20 06:05:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 06:05:11,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 89 [2024-11-20 06:05:11,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:05:11,650 INFO L225 Difference]: With dead ends: 117 [2024-11-20 06:05:11,650 INFO L226 Difference]: Without dead ends: 79 [2024-11-20 06:05:11,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:05:11,652 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 60 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 06:05:11,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 98 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 06:05:11,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-20 06:05:11,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2024-11-20 06:05:11,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 45 states have (on average 1.2) internal successors, (54), 45 states have internal predecessors, (54), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-20 06:05:11,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 110 transitions. [2024-11-20 06:05:11,683 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 110 transitions. Word has length 89 [2024-11-20 06:05:11,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:05:11,684 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 110 transitions. [2024-11-20 06:05:11,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 06:05:11,684 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 110 transitions. [2024-11-20 06:05:11,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-20 06:05:11,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:05:11,689 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:05:11,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 06:05:11,689 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:05:11,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:05:11,689 INFO L85 PathProgramCache]: Analyzing trace with hash -828174430, now seen corresponding path program 1 times [2024-11-20 06:05:11,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:05:11,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717257167] [2024-11-20 06:05:11,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:05:11,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:05:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:05:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:05:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:05:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:05:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:05:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:05:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:05:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:05:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:05:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:05:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:05:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:05:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:05:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:05:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 06:05:12,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:05:12,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717257167] [2024-11-20 06:05:12,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717257167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:05:12,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:05:12,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 06:05:12,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167162413] [2024-11-20 06:05:12,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:05:12,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 06:05:12,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:05:12,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 06:05:12,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 06:05:12,155 INFO L87 Difference]: Start difference. First operand 76 states and 110 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 06:05:12,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:05:12,349 INFO L93 Difference]: Finished difference Result 196 states and 284 transitions. [2024-11-20 06:05:12,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 06:05:12,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2024-11-20 06:05:12,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:05:12,352 INFO L225 Difference]: With dead ends: 196 [2024-11-20 06:05:12,353 INFO L226 Difference]: Without dead ends: 123 [2024-11-20 06:05:12,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-20 06:05:12,355 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 78 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 06:05:12,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 173 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 06:05:12,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-20 06:05:12,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 111. [2024-11-20 06:05:12,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 65 states have (on average 1.2) internal successors, (78), 65 states have internal predecessors, (78), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-20 06:05:12,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 162 transitions. [2024-11-20 06:05:12,383 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 162 transitions. Word has length 90 [2024-11-20 06:05:12,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:05:12,384 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 162 transitions. [2024-11-20 06:05:12,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-20 06:05:12,385 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 162 transitions. [2024-11-20 06:05:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-20 06:05:12,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:05:12,387 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:05:12,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 06:05:12,387 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:05:12,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:05:12,388 INFO L85 PathProgramCache]: Analyzing trace with hash -830021472, now seen corresponding path program 1 times [2024-11-20 06:05:12,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:05:12,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650302195] [2024-11-20 06:05:12,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:05:12,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:05:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:05:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:05:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:05:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:05:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:05:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:05:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:05:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:05:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:05:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:05:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:05:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:05:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:05:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:05:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 06:05:14,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:05:14,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650302195] [2024-11-20 06:05:14,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650302195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:05:14,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:05:14,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 06:05:14,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042637600] [2024-11-20 06:05:14,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:05:14,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 06:05:14,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:05:14,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 06:05:14,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-20 06:05:14,477 INFO L87 Difference]: Start difference. First operand 111 states and 162 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 06:05:14,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:05:14,998 INFO L93 Difference]: Finished difference Result 128 states and 181 transitions. [2024-11-20 06:05:14,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 06:05:14,998 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2024-11-20 06:05:14,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:05:15,000 INFO L225 Difference]: With dead ends: 128 [2024-11-20 06:05:15,000 INFO L226 Difference]: Without dead ends: 126 [2024-11-20 06:05:15,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2024-11-20 06:05:15,001 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 72 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 06:05:15,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 364 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 06:05:15,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-20 06:05:15,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 115. [2024-11-20 06:05:15,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 68 states have (on average 1.1764705882352942) internal successors, (80), 68 states have internal predecessors, (80), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-20 06:05:15,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2024-11-20 06:05:15,023 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 90 [2024-11-20 06:05:15,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:05:15,023 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2024-11-20 06:05:15,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 06:05:15,024 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2024-11-20 06:05:15,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-20 06:05:15,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:05:15,025 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:05:15,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 06:05:15,027 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:05:15,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:05:15,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1518851614, now seen corresponding path program 1 times [2024-11-20 06:05:15,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:05:15,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571734804] [2024-11-20 06:05:15,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:05:15,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:05:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:05:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:05:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:05:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:05:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:05:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:05:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:05:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:05:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:05:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:05:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:05:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:05:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:05:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:05:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,102 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 06:05:18,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:05:18,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571734804] [2024-11-20 06:05:18,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571734804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:05:18,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:05:18,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 06:05:18,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460580130] [2024-11-20 06:05:18,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:05:18,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 06:05:18,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:05:18,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 06:05:18,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-20 06:05:18,106 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 06:05:18,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:05:18,649 INFO L93 Difference]: Finished difference Result 157 states and 218 transitions. [2024-11-20 06:05:18,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 06:05:18,650 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2024-11-20 06:05:18,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:05:18,651 INFO L225 Difference]: With dead ends: 157 [2024-11-20 06:05:18,651 INFO L226 Difference]: Without dead ends: 155 [2024-11-20 06:05:18,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-20 06:05:18,653 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 105 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 06:05:18,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 292 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 06:05:18,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-20 06:05:18,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2024-11-20 06:05:18,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 76 states have (on average 1.2236842105263157) internal successors, (93), 76 states have internal predecessors, (93), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-20 06:05:18,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 177 transitions. [2024-11-20 06:05:18,680 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 177 transitions. Word has length 90 [2024-11-20 06:05:18,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:05:18,680 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 177 transitions. [2024-11-20 06:05:18,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 06:05:18,680 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 177 transitions. [2024-11-20 06:05:18,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-20 06:05:18,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:05:18,682 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:05:18,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 06:05:18,683 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:05:18,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:05:18,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1461593312, now seen corresponding path program 1 times [2024-11-20 06:05:18,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:05:18,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312814209] [2024-11-20 06:05:18,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:05:18,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:05:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:05:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:05:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:05:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:05:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:05:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:05:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:05:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:05:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:05:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:05:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:05:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:05:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:05:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:05:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:18,809 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 06:05:18,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:05:18,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312814209] [2024-11-20 06:05:18,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312814209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:05:18,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:05:18,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 06:05:18,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283486695] [2024-11-20 06:05:18,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:05:18,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 06:05:18,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:05:18,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 06:05:18,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 06:05:18,811 INFO L87 Difference]: Start difference. First operand 123 states and 177 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 06:05:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:05:18,927 INFO L93 Difference]: Finished difference Result 200 states and 278 transitions. [2024-11-20 06:05:18,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 06:05:18,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2024-11-20 06:05:18,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:05:18,929 INFO L225 Difference]: With dead ends: 200 [2024-11-20 06:05:18,929 INFO L226 Difference]: Without dead ends: 160 [2024-11-20 06:05:18,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 06:05:18,930 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 67 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 06:05:18,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 154 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 06:05:18,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-20 06:05:18,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 136. [2024-11-20 06:05:18,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 86 states have (on average 1.1744186046511629) internal successors, (101), 86 states have internal predecessors, (101), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-20 06:05:18,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 185 transitions. [2024-11-20 06:05:18,961 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 185 transitions. Word has length 90 [2024-11-20 06:05:18,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:05:18,962 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 185 transitions. [2024-11-20 06:05:18,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 06:05:18,962 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 185 transitions. [2024-11-20 06:05:18,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-20 06:05:18,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:05:18,963 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:05:18,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 06:05:18,964 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:05:18,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:05:18,964 INFO L85 PathProgramCache]: Analyzing trace with hash 256155748, now seen corresponding path program 1 times [2024-11-20 06:05:18,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:05:18,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435293211] [2024-11-20 06:05:18,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:05:18,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:05:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 06:05:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 06:05:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 06:05:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 06:05:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 06:05:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 06:05:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 06:05:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 06:05:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 06:05:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 06:05:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 06:05:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 06:05:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 06:05:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 06:05:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 06:05:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-20 06:05:20,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 06:05:20,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435293211] [2024-11-20 06:05:20,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435293211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 06:05:20,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 06:05:20,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 06:05:20,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890321287] [2024-11-20 06:05:20,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 06:05:20,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 06:05:20,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 06:05:20,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 06:05:20,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-20 06:05:20,676 INFO L87 Difference]: Start difference. First operand 136 states and 185 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 06:05:21,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 06:05:21,230 INFO L93 Difference]: Finished difference Result 173 states and 229 transitions. [2024-11-20 06:05:21,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 06:05:21,231 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2024-11-20 06:05:21,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 06:05:21,232 INFO L225 Difference]: With dead ends: 173 [2024-11-20 06:05:21,232 INFO L226 Difference]: Without dead ends: 171 [2024-11-20 06:05:21,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-20 06:05:21,233 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 94 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 06:05:21,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 289 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 06:05:21,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-20 06:05:21,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 137. [2024-11-20 06:05:21,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 87 states have (on average 1.1839080459770115) internal successors, (103), 87 states have internal predecessors, (103), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-20 06:05:21,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 187 transitions. [2024-11-20 06:05:21,255 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 187 transitions. Word has length 90 [2024-11-20 06:05:21,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 06:05:21,255 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 187 transitions. [2024-11-20 06:05:21,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-20 06:05:21,256 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 187 transitions. [2024-11-20 06:05:21,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-20 06:05:21,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 06:05:21,256 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 06:05:21,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 06:05:21,257 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 06:05:21,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 06:05:21,257 INFO L85 PathProgramCache]: Analyzing trace with hash 313414050, now seen corresponding path program 1 times [2024-11-20 06:05:21,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 06:05:21,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755193881] [2024-11-20 06:05:21,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 06:05:21,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 06:05:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat