./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-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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-86.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 372bad28063f40745a1d198085d9dba9c573515785fed9177a01325fc4e12ae1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:08:16,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:08:16,418 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 11:08:16,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:08:16,423 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:08:16,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:08:16,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:08:16,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:08:16,451 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:08:16,451 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:08:16,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:08:16,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:08:16,453 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:08:16,453 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:08:16,456 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:08:16,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:08:16,456 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:08:16,457 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:08:16,457 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 11:08:16,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:08:16,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:08:16,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:08:16,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:08:16,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:08:16,462 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:08:16,463 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:08:16,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:08:16,463 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:08:16,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:08:16,463 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:08:16,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:08:16,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:08:16,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:08:16,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:08:16,464 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:08:16,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:08:16,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 11:08:16,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 11:08:16,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:08:16,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:08:16,467 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:08:16,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:08:16,468 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 372bad28063f40745a1d198085d9dba9c573515785fed9177a01325fc4e12ae1 [2024-10-14 11:08:16,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:08:16,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:08:16,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:08:16,727 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:08:16,728 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:08:16,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-86.i [2024-10-14 11:08:18,140 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:08:18,359 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:08:18,360 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-86.i [2024-10-14 11:08:18,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4063ff669/4755dbef2ce143b3831a5da092e97829/FLAG06f2eb674 [2024-10-14 11:08:18,388 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4063ff669/4755dbef2ce143b3831a5da092e97829 [2024-10-14 11:08:18,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:08:18,392 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:08:18,393 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:08:18,394 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:08:18,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:08:18,400 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c3d1bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18, skipping insertion in model container [2024-10-14 11:08:18,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,438 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:08:18,587 WARN L248 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-86.i[916,929] [2024-10-14 11:08:18,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:08:18,662 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:08:18,673 WARN L248 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-86.i[916,929] [2024-10-14 11:08:18,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:08:18,729 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:08:18,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18 WrapperNode [2024-10-14 11:08:18,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:08:18,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:08:18,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:08:18,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:08:18,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,841 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 165 [2024-10-14 11:08:18,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:08:18,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:08:18,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:08:18,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:08:18,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,900 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,930 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]. [2024-10-14 11:08:18,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:08:18,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:08:18,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:08:18,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:08:18,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (1/1) ... [2024-10-14 11:08:18,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:08:18,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:08:19,018 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) [2024-10-14 11:08:19,022 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 [2024-10-14 11:08:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:08:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:08:19,075 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:08:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 11:08:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:08:19,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:08:19,172 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:08:19,175 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:08:19,540 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-10-14 11:08:19,541 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:08:19,572 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:08:19,572 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:08:19,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:19 BoogieIcfgContainer [2024-10-14 11:08:19,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:08:19,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:08:19,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:08:19,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:08:19,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:08:18" (1/3) ... [2024-10-14 11:08:19,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad9537f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:19, skipping insertion in model container [2024-10-14 11:08:19,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:18" (2/3) ... [2024-10-14 11:08:19,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad9537f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:19, skipping insertion in model container [2024-10-14 11:08:19,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:19" (3/3) ... [2024-10-14 11:08:19,583 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-86.i [2024-10-14 11:08:19,601 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:08:19,601 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:08:19,673 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:08:19,679 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;@63a20083, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:08:19,680 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:08:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 40 states have internal predecessors, (52), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 11:08:19,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-14 11:08:19,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:19,701 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:19,702 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:19,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:19,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1186546830, now seen corresponding path program 1 times [2024-10-14 11:08:19,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:19,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397188415] [2024-10-14 11:08:19,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:19,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 11:08:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 11:08:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 11:08:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 11:08:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 11:08:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 11:08:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:08:20,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:20,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397188415] [2024-10-14 11:08:20,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397188415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:20,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:20,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:08:20,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960915931] [2024-10-14 11:08:20,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:20,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:08:20,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:20,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:08:20,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:08:20,211 INFO L87 Difference]: Start difference. First operand has 70 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 40 states have internal predecessors, (52), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-14 11:08:20,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:20,262 INFO L93 Difference]: Finished difference Result 137 states and 242 transitions. [2024-10-14 11:08:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:08:20,265 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) Word has length 166 [2024-10-14 11:08:20,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:20,273 INFO L225 Difference]: With dead ends: 137 [2024-10-14 11:08:20,273 INFO L226 Difference]: Without dead ends: 68 [2024-10-14 11:08:20,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:08:20,283 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:20,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:08:20,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-14 11:08:20,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-10-14 11:08:20,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 11:08:20,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 103 transitions. [2024-10-14 11:08:20,368 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 103 transitions. Word has length 166 [2024-10-14 11:08:20,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:20,368 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 103 transitions. [2024-10-14 11:08:20,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-14 11:08:20,369 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 103 transitions. [2024-10-14 11:08:20,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-14 11:08:20,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:20,380 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:20,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 11:08:20,380 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:20,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:20,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1029913742, now seen corresponding path program 1 times [2024-10-14 11:08:20,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:20,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139515323] [2024-10-14 11:08:20,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:20,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:20,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 11:08:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 11:08:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 11:08:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 11:08:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 11:08:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 11:08:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:20,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:08:20,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:20,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139515323] [2024-10-14 11:08:20,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139515323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:20,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:20,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 11:08:20,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167221373] [2024-10-14 11:08:20,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:20,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 11:08:20,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:20,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 11:08:20,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:08:20,731 INFO L87 Difference]: Start difference. First operand 68 states and 103 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:20,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:20,785 INFO L93 Difference]: Finished difference Result 155 states and 232 transitions. [2024-10-14 11:08:20,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 11:08:20,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 166 [2024-10-14 11:08:20,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:20,788 INFO L225 Difference]: With dead ends: 155 [2024-10-14 11:08:20,788 INFO L226 Difference]: Without dead ends: 88 [2024-10-14 11:08:20,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:08:20,790 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 21 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:20,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 202 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:08:20,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-14 11:08:20,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 78. [2024-10-14 11:08:20,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 48 states have internal predecessors, (61), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 11:08:20,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 117 transitions. [2024-10-14 11:08:20,804 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 117 transitions. Word has length 166 [2024-10-14 11:08:20,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:20,806 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 117 transitions. [2024-10-14 11:08:20,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 117 transitions. [2024-10-14 11:08:20,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-14 11:08:20,809 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:20,809 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:20,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 11:08:20,810 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:20,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:20,811 INFO L85 PathProgramCache]: Analyzing trace with hash 636886732, now seen corresponding path program 1 times [2024-10-14 11:08:20,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:20,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293525684] [2024-10-14 11:08:20,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:20,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 11:08:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 11:08:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 11:08:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 11:08:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 11:08:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 11:08:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:23,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:08:23,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:23,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293525684] [2024-10-14 11:08:23,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293525684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:23,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:23,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:08:23,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613240432] [2024-10-14 11:08:23,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:23,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:08:23,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:23,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:08:23,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:08:23,626 INFO L87 Difference]: Start difference. First operand 78 states and 117 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:23,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:23,956 INFO L93 Difference]: Finished difference Result 182 states and 269 transitions. [2024-10-14 11:08:23,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 11:08:23,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 166 [2024-10-14 11:08:23,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:23,959 INFO L225 Difference]: With dead ends: 182 [2024-10-14 11:08:23,959 INFO L226 Difference]: Without dead ends: 105 [2024-10-14 11:08:23,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:08:23,961 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 44 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:23,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 383 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 11:08:23,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-10-14 11:08:23,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 92. [2024-10-14 11:08:23,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 62 states have internal predecessors, (80), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 11:08:23,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 136 transitions. [2024-10-14 11:08:23,976 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 136 transitions. Word has length 166 [2024-10-14 11:08:23,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:23,977 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 136 transitions. [2024-10-14 11:08:23,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:23,977 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 136 transitions. [2024-10-14 11:08:23,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-14 11:08:23,983 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:23,983 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:23,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 11:08:23,984 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:23,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:23,984 INFO L85 PathProgramCache]: Analyzing trace with hash -172459894, now seen corresponding path program 1 times [2024-10-14 11:08:23,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:23,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182432323] [2024-10-14 11:08:23,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:23,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 11:08:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 11:08:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 11:08:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 11:08:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 11:08:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 11:08:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:08:25,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:25,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182432323] [2024-10-14 11:08:25,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182432323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:25,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:25,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:08:25,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245450350] [2024-10-14 11:08:25,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:25,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:08:25,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:25,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:08:25,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:08:25,876 INFO L87 Difference]: Start difference. First operand 92 states and 136 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:26,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:26,224 INFO L93 Difference]: Finished difference Result 195 states and 285 transitions. [2024-10-14 11:08:26,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 11:08:26,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 166 [2024-10-14 11:08:26,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:26,228 INFO L225 Difference]: With dead ends: 195 [2024-10-14 11:08:26,230 INFO L226 Difference]: Without dead ends: 104 [2024-10-14 11:08:26,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:08:26,232 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 20 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:26,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 403 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 11:08:26,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-14 11:08:26,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 78. [2024-10-14 11:08:26,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 48 states have internal predecessors, (59), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 11:08:26,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 115 transitions. [2024-10-14 11:08:26,244 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 115 transitions. Word has length 166 [2024-10-14 11:08:26,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:26,245 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 115 transitions. [2024-10-14 11:08:26,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:26,246 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 115 transitions. [2024-10-14 11:08:26,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-14 11:08:26,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:26,248 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:26,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 11:08:26,249 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:26,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:26,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1578942609, now seen corresponding path program 1 times [2024-10-14 11:08:26,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:26,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748833030] [2024-10-14 11:08:26,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:26,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 11:08:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 11:08:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 11:08:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 11:08:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 11:08:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 11:08:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:28,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:08:28,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:28,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748833030] [2024-10-14 11:08:28,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748833030] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:28,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:28,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 11:08:28,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392726992] [2024-10-14 11:08:28,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:28,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 11:08:28,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:28,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 11:08:28,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:08:28,649 INFO L87 Difference]: Start difference. First operand 78 states and 115 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:29,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:29,242 INFO L93 Difference]: Finished difference Result 171 states and 252 transitions. [2024-10-14 11:08:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 11:08:29,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 168 [2024-10-14 11:08:29,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:29,246 INFO L225 Difference]: With dead ends: 171 [2024-10-14 11:08:29,249 INFO L226 Difference]: Without dead ends: 169 [2024-10-14 11:08:29,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 11:08:29,250 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 177 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:29,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 456 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 11:08:29,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-10-14 11:08:29,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2024-10-14 11:08:29,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 89 states have (on average 1.1573033707865168) internal successors, (103), 91 states have internal predecessors, (103), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2024-10-14 11:08:29,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 247 transitions. [2024-10-14 11:08:29,293 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 247 transitions. Word has length 168 [2024-10-14 11:08:29,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:29,294 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 247 transitions. [2024-10-14 11:08:29,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:29,294 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 247 transitions. [2024-10-14 11:08:29,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 11:08:29,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:29,296 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:29,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 11:08:29,297 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:29,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:29,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1567892264, now seen corresponding path program 1 times [2024-10-14 11:08:29,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:29,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366949463] [2024-10-14 11:08:29,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:29,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 11:08:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 11:08:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 11:08:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 11:08:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 11:08:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 11:08:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:08:29,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:29,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366949463] [2024-10-14 11:08:29,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366949463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:29,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:29,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 11:08:29,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18730278] [2024-10-14 11:08:29,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:29,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 11:08:29,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:29,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 11:08:29,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:08:29,421 INFO L87 Difference]: Start difference. First operand 165 states and 247 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:29,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:29,481 INFO L93 Difference]: Finished difference Result 301 states and 438 transitions. [2024-10-14 11:08:29,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 11:08:29,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 170 [2024-10-14 11:08:29,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:29,486 INFO L225 Difference]: With dead ends: 301 [2024-10-14 11:08:29,487 INFO L226 Difference]: Without dead ends: 176 [2024-10-14 11:08:29,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:08:29,489 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 35 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:29,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 219 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:08:29,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-10-14 11:08:29,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 159. [2024-10-14 11:08:29,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 83 states have (on average 1.1325301204819278) internal successors, (94), 85 states have internal predecessors, (94), 72 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2024-10-14 11:08:29,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 238 transitions. [2024-10-14 11:08:29,535 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 238 transitions. Word has length 170 [2024-10-14 11:08:29,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:29,535 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 238 transitions. [2024-10-14 11:08:29,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:29,536 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 238 transitions. [2024-10-14 11:08:29,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 11:08:29,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:29,539 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:29,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 11:08:29,539 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:29,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:29,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1616890392, now seen corresponding path program 1 times [2024-10-14 11:08:29,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:29,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089503305] [2024-10-14 11:08:29,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:29,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:08:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:08:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:08:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:08:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:08:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:08:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:08:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:08:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:08:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:08:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:08:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 11:08:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 11:08:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 11:08:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 11:08:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 11:08:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 11:08:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 11:08:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 11:08:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 11:08:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 11:08:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 11:08:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 11:08:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 11:08:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 11:08:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 11:08:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 11:08:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 11:08:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:08:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:08:29,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:08:29,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089503305] [2024-10-14 11:08:29,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089503305] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:08:29,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:08:29,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 11:08:29,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467562840] [2024-10-14 11:08:29,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:08:29,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 11:08:29,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:08:29,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 11:08:29,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:08:29,644 INFO L87 Difference]: Start difference. First operand 159 states and 238 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:29,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:08:29,712 INFO L93 Difference]: Finished difference Result 316 states and 464 transitions. [2024-10-14 11:08:29,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:08:29,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 170 [2024-10-14 11:08:29,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:08:29,715 INFO L225 Difference]: With dead ends: 316 [2024-10-14 11:08:29,715 INFO L226 Difference]: Without dead ends: 197 [2024-10-14 11:08:29,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:08:29,716 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 79 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:08:29,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 387 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:08:29,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-10-14 11:08:29,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2024-10-14 11:08:29,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 101 states have (on average 1.118811881188119) internal successors, (113), 104 states have internal predecessors, (113), 88 states have call successors, (88), 4 states have call predecessors, (88), 4 states have return successors, (88), 85 states have call predecessors, (88), 88 states have call successors, (88) [2024-10-14 11:08:29,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 289 transitions. [2024-10-14 11:08:29,750 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 289 transitions. Word has length 170 [2024-10-14 11:08:29,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:08:29,751 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 289 transitions. [2024-10-14 11:08:29,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:08:29,751 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 289 transitions. [2024-10-14 11:08:29,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 11:08:29,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:08:29,753 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:08:29,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 11:08:29,753 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:08:29,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:08:29,754 INFO L85 PathProgramCache]: Analyzing trace with hash -840721231, now seen corresponding path program 1 times [2024-10-14 11:08:29,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:08:29,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84943003] [2024-10-14 11:08:29,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:08:29,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:08:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat