./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_variablewrapping_normal_file-27.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_variablewrapping_normal_file-27.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 86036ac0bfa9ee938cdef92448e7d3f42361b0a9188b4ed11afb10dcc0600389 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 13:11:51,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 13:11:51,456 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 13:11:51,461 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 13:11:51,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 13:11:51,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 13:11:51,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 13:11:51,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 13:11:51,487 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 13:11:51,487 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 13:11:51,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 13:11:51,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 13:11:51,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 13:11:51,488 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 13:11:51,488 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 13:11:51,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 13:11:51,489 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 13:11:51,489 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 13:11:51,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 13:11:51,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 13:11:51,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 13:11:51,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 13:11:51,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 13:11:51,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 13:11:51,494 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 13:11:51,494 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 13:11:51,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 13:11:51,494 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 13:11:51,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 13:11:51,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 13:11:51,495 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 13:11:51,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 13:11:51,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:11:51,496 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 13:11:51,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 13:11:51,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 13:11:51,497 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 13:11:51,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 13:11:51,498 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 13:11:51,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 13:11:51,498 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 13:11:51,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 13:11:51,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86036ac0bfa9ee938cdef92448e7d3f42361b0a9188b4ed11afb10dcc0600389 [2024-10-14 13:11:51,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 13:11:51,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 13:11:51,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 13:11:51,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 13:11:51,721 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 13:11:51,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-27.i [2024-10-14 13:11:52,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 13:11:53,084 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 13:11:53,085 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-27.i [2024-10-14 13:11:53,094 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4ef0dd18/7c63301e1ae64d37aafd12352f0a4888/FLAG7160bc741 [2024-10-14 13:11:53,107 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4ef0dd18/7c63301e1ae64d37aafd12352f0a4888 [2024-10-14 13:11:53,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 13:11:53,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 13:11:53,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 13:11:53,112 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 13:11:53,117 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 13:11:53,118 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@116481a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53, skipping insertion in model container [2024-10-14 13:11:53,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,139 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 13:11:53,266 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_variablewrapping_normal_file-27.i[913,926] [2024-10-14 13:11:53,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:11:53,314 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 13:11:53,326 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_variablewrapping_normal_file-27.i[913,926] [2024-10-14 13:11:53,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:11:53,354 INFO L204 MainTranslator]: Completed translation [2024-10-14 13:11:53,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53 WrapperNode [2024-10-14 13:11:53,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 13:11:53,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 13:11:53,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 13:11:53,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 13:11:53,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,390 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2024-10-14 13:11:53,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 13:11:53,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 13:11:53,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 13:11:53,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 13:11:53,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,404 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,421 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 13:11:53,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,424 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 13:11:53,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 13:11:53,430 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 13:11:53,430 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 13:11:53,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (1/1) ... [2024-10-14 13:11:53,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:11:53,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:11:53,455 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 13:11:53,457 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 13:11:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 13:11:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 13:11:53,492 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 13:11:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 13:11:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 13:11:53,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 13:11:53,555 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 13:11:53,557 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 13:11:53,794 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-14 13:11:53,794 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 13:11:53,837 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 13:11:53,837 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 13:11:53,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:11:53 BoogieIcfgContainer [2024-10-14 13:11:53,837 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 13:11:53,839 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 13:11:53,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 13:11:53,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 13:11:53,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:11:53" (1/3) ... [2024-10-14 13:11:53,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1d2f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:11:53, skipping insertion in model container [2024-10-14 13:11:53,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:11:53" (2/3) ... [2024-10-14 13:11:53,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1d2f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:11:53, skipping insertion in model container [2024-10-14 13:11:53,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:11:53" (3/3) ... [2024-10-14 13:11:53,846 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-27.i [2024-10-14 13:11:53,857 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 13:11:53,858 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 13:11:53,911 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 13:11:53,917 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;@6a5f52f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 13:11:53,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 13:11:53,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-14 13:11:53,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-14 13:11:53,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:11:53,935 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:53,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:11:53,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:11:53,940 INFO L85 PathProgramCache]: Analyzing trace with hash -424979931, now seen corresponding path program 1 times [2024-10-14 13:11:53,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:11:53,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994187287] [2024-10-14 13:11:53,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:11:53,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:11:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:11:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:11:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:11:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:11:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:11:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:11:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:11:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:11:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:11:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:11:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:11:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:11:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:11:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:11:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:11:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:11:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:11:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:54,200 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:11:54,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:11:54,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994187287] [2024-10-14 13:11:54,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994187287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:11:54,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:11:54,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 13:11:54,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666213232] [2024-10-14 13:11:54,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:11:54,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 13:11:54,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:11:54,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 13:11:54,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:11:54,230 INFO L87 Difference]: Start difference. First operand has 47 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:11:54,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:11:54,268 INFO L93 Difference]: Finished difference Result 91 states and 159 transitions. [2024-10-14 13:11:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 13:11:54,271 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 105 [2024-10-14 13:11:54,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:11:54,276 INFO L225 Difference]: With dead ends: 91 [2024-10-14 13:11:54,276 INFO L226 Difference]: Without dead ends: 45 [2024-10-14 13:11:54,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 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 13:11:54,283 INFO L432 NwaCegarLoop]: 64 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, 64 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 13:11:54,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:11:54,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-14 13:11:54,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-14 13:11:54,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-14 13:11:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 67 transitions. [2024-10-14 13:11:54,313 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 67 transitions. Word has length 105 [2024-10-14 13:11:54,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:11:54,314 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 67 transitions. [2024-10-14 13:11:54,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:11:54,314 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2024-10-14 13:11:54,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-14 13:11:54,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:11:54,317 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:54,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 13:11:54,318 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:11:54,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:11:54,318 INFO L85 PathProgramCache]: Analyzing trace with hash -170539677, now seen corresponding path program 1 times [2024-10-14 13:11:54,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:11:54,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240310741] [2024-10-14 13:11:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:11:54,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:11:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:11:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:11:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:11:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:11:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:11:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:11:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:11:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:11:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:11:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:11:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:11:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:11:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:11:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:11:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:11:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:11:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:11:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:11:58,456 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:11:58,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:11:58,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240310741] [2024-10-14 13:11:58,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240310741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:11:58,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:11:58,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:11:58,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533705327] [2024-10-14 13:11:58,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:11:58,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:11:58,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:11:58,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:11:58,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:11:58,459 INFO L87 Difference]: Start difference. First operand 45 states and 67 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:11:59,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:11:59,062 INFO L93 Difference]: Finished difference Result 104 states and 138 transitions. [2024-10-14 13:11:59,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 13:11:59,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 105 [2024-10-14 13:11:59,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:11:59,065 INFO L225 Difference]: With dead ends: 104 [2024-10-14 13:11:59,066 INFO L226 Difference]: Without dead ends: 102 [2024-10-14 13:11:59,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:11:59,070 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 70 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:11:59,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 259 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:11:59,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-10-14 13:11:59,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 68. [2024-10-14 13:11:59,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 47 states have internal predecessors, (60), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 13:11:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 98 transitions. [2024-10-14 13:11:59,092 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 98 transitions. Word has length 105 [2024-10-14 13:11:59,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:11:59,096 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 98 transitions. [2024-10-14 13:11:59,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:11:59,097 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 98 transitions. [2024-10-14 13:11:59,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-14 13:11:59,098 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:11:59,098 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:59,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 13:11:59,098 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:11:59,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:11:59,099 INFO L85 PathProgramCache]: Analyzing trace with hash -227797979, now seen corresponding path program 1 times [2024-10-14 13:11:59,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:11:59,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674092192] [2024-10-14 13:11:59,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:11:59,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:11:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:00,546 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:00,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:00,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674092192] [2024-10-14 13:12:00,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674092192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:00,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:00,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:12:00,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320693787] [2024-10-14 13:12:00,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:00,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:12:00,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:00,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:12:00,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:12:00,548 INFO L87 Difference]: Start difference. First operand 68 states and 98 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:00,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:00,900 INFO L93 Difference]: Finished difference Result 123 states and 162 transitions. [2024-10-14 13:12:00,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:12:00,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 105 [2024-10-14 13:12:00,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:00,903 INFO L225 Difference]: With dead ends: 123 [2024-10-14 13:12:00,903 INFO L226 Difference]: Without dead ends: 121 [2024-10-14 13:12:00,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:12:00,904 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 52 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:00,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 245 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:12:00,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-14 13:12:00,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 62. [2024-10-14 13:12:00,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 40 states have (on average 1.275) internal successors, (51), 41 states have internal predecessors, (51), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 13:12:00,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 89 transitions. [2024-10-14 13:12:00,916 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 89 transitions. Word has length 105 [2024-10-14 13:12:00,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:00,916 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 89 transitions. [2024-10-14 13:12:00,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:00,917 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 89 transitions. [2024-10-14 13:12:00,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-14 13:12:00,918 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:00,918 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:00,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 13:12:00,918 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:00,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:00,919 INFO L85 PathProgramCache]: Analyzing trace with hash -563566687, now seen corresponding path program 1 times [2024-10-14 13:12:00,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:00,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018892036] [2024-10-14 13:12:00,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:00,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:01,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:01,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018892036] [2024-10-14 13:12:01,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018892036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:01,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:01,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:12:01,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558711407] [2024-10-14 13:12:01,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:01,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:12:01,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:01,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:12:01,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:12:01,964 INFO L87 Difference]: Start difference. First operand 62 states and 89 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:02,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:02,212 INFO L93 Difference]: Finished difference Result 157 states and 217 transitions. [2024-10-14 13:12:02,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:12:02,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 105 [2024-10-14 13:12:02,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:02,214 INFO L225 Difference]: With dead ends: 157 [2024-10-14 13:12:02,214 INFO L226 Difference]: Without dead ends: 99 [2024-10-14 13:12:02,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:12:02,215 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 44 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:02,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 241 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:12:02,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-14 13:12:02,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 69. [2024-10-14 13:12:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 48 states have internal predecessors, (59), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 13:12:02,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2024-10-14 13:12:02,232 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 97 transitions. Word has length 105 [2024-10-14 13:12:02,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:02,232 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 97 transitions. [2024-10-14 13:12:02,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:02,232 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 97 transitions. [2024-10-14 13:12:02,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-14 13:12:02,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:02,234 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:02,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 13:12:02,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:02,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:02,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1001266956, now seen corresponding path program 1 times [2024-10-14 13:12:02,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:02,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385537568] [2024-10-14 13:12:02,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:02,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:06,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:06,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385537568] [2024-10-14 13:12:06,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385537568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:06,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:06,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:12:06,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307148674] [2024-10-14 13:12:06,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:06,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:12:06,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:06,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:12:06,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:12:06,176 INFO L87 Difference]: Start difference. First operand 69 states and 97 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:07,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:07,017 INFO L93 Difference]: Finished difference Result 109 states and 143 transitions. [2024-10-14 13:12:07,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:12:07,018 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 106 [2024-10-14 13:12:07,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:07,020 INFO L225 Difference]: With dead ends: 109 [2024-10-14 13:12:07,020 INFO L226 Difference]: Without dead ends: 107 [2024-10-14 13:12:07,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:12:07,021 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 56 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:07,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 346 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 13:12:07,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-10-14 13:12:07,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 74. [2024-10-14 13:12:07,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 53 states have internal predecessors, (67), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 13:12:07,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2024-10-14 13:12:07,034 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 106 [2024-10-14 13:12:07,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:07,034 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2024-10-14 13:12:07,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:07,034 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2024-10-14 13:12:07,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-14 13:12:07,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:07,035 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:07,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 13:12:07,035 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:07,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:07,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1001207374, now seen corresponding path program 1 times [2024-10-14 13:12:07,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:07,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764819841] [2024-10-14 13:12:07,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:07,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:11,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:11,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764819841] [2024-10-14 13:12:11,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764819841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:11,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:11,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:12:11,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346313300] [2024-10-14 13:12:11,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:11,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:12:11,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:11,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:12:11,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:12:11,836 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:13,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:13,092 INFO L93 Difference]: Finished difference Result 107 states and 141 transitions. [2024-10-14 13:12:13,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:12:13,092 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 106 [2024-10-14 13:12:13,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:13,093 INFO L225 Difference]: With dead ends: 107 [2024-10-14 13:12:13,093 INFO L226 Difference]: Without dead ends: 105 [2024-10-14 13:12:13,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:12:13,094 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 54 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:13,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 279 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:12:13,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-10-14 13:12:13,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 74. [2024-10-14 13:12:13,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 53 states have internal predecessors, (67), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 13:12:13,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2024-10-14 13:12:13,104 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 106 [2024-10-14 13:12:13,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:13,104 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2024-10-14 13:12:13,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:13,104 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2024-10-14 13:12:13,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-14 13:12:13,105 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:13,106 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:13,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 13:12:13,106 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:13,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:13,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1518692978, now seen corresponding path program 1 times [2024-10-14 13:12:13,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:13,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196619038] [2024-10-14 13:12:13,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:13,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:16,718 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:16,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:16,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196619038] [2024-10-14 13:12:16,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196619038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:16,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:16,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:12:16,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956390514] [2024-10-14 13:12:16,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:16,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:12:16,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:16,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:12:16,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:12:16,720 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:17,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:17,737 INFO L93 Difference]: Finished difference Result 117 states and 152 transitions. [2024-10-14 13:12:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:12:17,738 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 106 [2024-10-14 13:12:17,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:17,739 INFO L225 Difference]: With dead ends: 117 [2024-10-14 13:12:17,739 INFO L226 Difference]: Without dead ends: 115 [2024-10-14 13:12:17,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-10-14 13:12:17,740 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 69 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:17,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 327 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:12:17,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-10-14 13:12:17,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 77. [2024-10-14 13:12:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 55 states have (on average 1.309090909090909) internal successors, (72), 56 states have internal predecessors, (72), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 13:12:17,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 110 transitions. [2024-10-14 13:12:17,750 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 110 transitions. Word has length 106 [2024-10-14 13:12:17,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:17,750 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 110 transitions. [2024-10-14 13:12:17,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:17,751 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 110 transitions. [2024-10-14 13:12:17,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-14 13:12:17,751 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:17,751 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:17,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 13:12:17,752 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:17,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:17,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1518752560, now seen corresponding path program 1 times [2024-10-14 13:12:17,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:17,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873741235] [2024-10-14 13:12:17,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:17,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:22,158 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:22,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:22,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873741235] [2024-10-14 13:12:22,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873741235] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:22,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:22,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:12:22,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281464885] [2024-10-14 13:12:22,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:22,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:12:22,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:22,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:12:22,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:12:22,160 INFO L87 Difference]: Start difference. First operand 77 states and 110 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:23,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:23,907 INFO L93 Difference]: Finished difference Result 114 states and 149 transitions. [2024-10-14 13:12:23,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:12:23,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 106 [2024-10-14 13:12:23,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:23,909 INFO L225 Difference]: With dead ends: 114 [2024-10-14 13:12:23,909 INFO L226 Difference]: Without dead ends: 112 [2024-10-14 13:12:23,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-10-14 13:12:23,909 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 64 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:23,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 259 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:12:23,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-14 13:12:23,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 74. [2024-10-14 13:12:23,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 53 states have internal predecessors, (67), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 13:12:23,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2024-10-14 13:12:23,919 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 106 [2024-10-14 13:12:23,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:23,919 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2024-10-14 13:12:23,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:23,919 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2024-10-14 13:12:23,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-14 13:12:23,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:23,922 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:23,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 13:12:23,922 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:23,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:23,923 INFO L85 PathProgramCache]: Analyzing trace with hash 285707021, now seen corresponding path program 1 times [2024-10-14 13:12:23,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:23,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668358460] [2024-10-14 13:12:23,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:23,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:23,992 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:23,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:23,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668358460] [2024-10-14 13:12:23,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668358460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:23,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:23,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:12:23,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126239481] [2024-10-14 13:12:23,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:23,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:12:23,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:23,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:12:23,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:12:23,994 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:24,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:24,029 INFO L93 Difference]: Finished difference Result 199 states and 282 transitions. [2024-10-14 13:12:24,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:12:24,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 106 [2024-10-14 13:12:24,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:24,032 INFO L225 Difference]: With dead ends: 199 [2024-10-14 13:12:24,032 INFO L226 Difference]: Without dead ends: 129 [2024-10-14 13:12:24,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 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 13:12:24,033 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 33 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:24,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 199 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:12:24,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-10-14 13:12:24,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2024-10-14 13:12:24,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 86 states have (on average 1.255813953488372) internal successors, (108), 87 states have internal predecessors, (108), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 13:12:24,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 180 transitions. [2024-10-14 13:12:24,052 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 180 transitions. Word has length 106 [2024-10-14 13:12:24,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:24,052 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 180 transitions. [2024-10-14 13:12:24,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:24,053 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 180 transitions. [2024-10-14 13:12:24,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-14 13:12:24,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:24,053 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:24,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 13:12:24,053 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:24,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:24,054 INFO L85 PathProgramCache]: Analyzing trace with hash 228448719, now seen corresponding path program 1 times [2024-10-14 13:12:24,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:24,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764895139] [2024-10-14 13:12:24,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:24,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:25,302 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:25,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:25,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764895139] [2024-10-14 13:12:25,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764895139] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:25,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:25,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 13:12:25,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927481492] [2024-10-14 13:12:25,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:25,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 13:12:25,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:25,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 13:12:25,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:12:25,304 INFO L87 Difference]: Start difference. First operand 127 states and 180 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:25,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:25,809 INFO L93 Difference]: Finished difference Result 329 states and 457 transitions. [2024-10-14 13:12:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:12:25,810 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 106 [2024-10-14 13:12:25,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:25,812 INFO L225 Difference]: With dead ends: 329 [2024-10-14 13:12:25,812 INFO L226 Difference]: Without dead ends: 206 [2024-10-14 13:12:25,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:12:25,813 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 96 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:25,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 263 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:12:25,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-10-14 13:12:25,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 174. [2024-10-14 13:12:25,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 114 states have (on average 1.219298245614035) internal successors, (139), 115 states have internal predecessors, (139), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-14 13:12:25,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 245 transitions. [2024-10-14 13:12:25,847 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 245 transitions. Word has length 106 [2024-10-14 13:12:25,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:25,848 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 245 transitions. [2024-10-14 13:12:25,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:25,848 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 245 transitions. [2024-10-14 13:12:25,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-14 13:12:25,849 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:25,849 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:25,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 13:12:25,849 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:25,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:25,850 INFO L85 PathProgramCache]: Analyzing trace with hash -422579576, now seen corresponding path program 1 times [2024-10-14 13:12:25,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:25,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430770161] [2024-10-14 13:12:25,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:25,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:31,140 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:31,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:31,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430770161] [2024-10-14 13:12:31,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430770161] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:31,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:31,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:12:31,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668960445] [2024-10-14 13:12:31,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:31,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:12:31,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:31,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:12:31,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:12:31,141 INFO L87 Difference]: Start difference. First operand 174 states and 245 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:34,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:34,287 INFO L93 Difference]: Finished difference Result 281 states and 387 transitions. [2024-10-14 13:12:34,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:12:34,288 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2024-10-14 13:12:34,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:34,290 INFO L225 Difference]: With dead ends: 281 [2024-10-14 13:12:34,290 INFO L226 Difference]: Without dead ends: 159 [2024-10-14 13:12:34,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-14 13:12:34,291 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 91 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:34,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 356 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 13:12:34,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-14 13:12:34,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 125. [2024-10-14 13:12:34,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 84 states have (on average 1.2261904761904763) internal successors, (103), 85 states have internal predecessors, (103), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 13:12:34,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2024-10-14 13:12:34,308 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 107 [2024-10-14 13:12:34,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:34,309 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2024-10-14 13:12:34,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:34,309 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2024-10-14 13:12:34,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-14 13:12:34,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:34,310 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:34,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 13:12:34,310 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:34,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:34,310 INFO L85 PathProgramCache]: Analyzing trace with hash -422519994, now seen corresponding path program 1 times [2024-10-14 13:12:34,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:34,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297129703] [2024-10-14 13:12:34,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:34,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:37,539 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:37,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:37,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297129703] [2024-10-14 13:12:37,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297129703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:37,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:37,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:12:37,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990694645] [2024-10-14 13:12:37,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:37,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:12:37,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:37,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:12:37,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:12:37,540 INFO L87 Difference]: Start difference. First operand 125 states and 175 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:39,853 INFO L93 Difference]: Finished difference Result 186 states and 241 transitions. [2024-10-14 13:12:39,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:12:39,853 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2024-10-14 13:12:39,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:39,854 INFO L225 Difference]: With dead ends: 186 [2024-10-14 13:12:39,855 INFO L226 Difference]: Without dead ends: 184 [2024-10-14 13:12:39,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-14 13:12:39,855 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 83 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:39,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 322 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:12:39,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-14 13:12:39,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 124. [2024-10-14 13:12:39,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 83 states have (on average 1.216867469879518) internal successors, (101), 84 states have internal predecessors, (101), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 13:12:39,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 173 transitions. [2024-10-14 13:12:39,874 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 173 transitions. Word has length 107 [2024-10-14 13:12:39,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:39,874 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 173 transitions. [2024-10-14 13:12:39,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:39,874 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 173 transitions. [2024-10-14 13:12:39,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-14 13:12:39,875 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:39,875 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:39,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 13:12:39,875 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:39,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:39,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2097380358, now seen corresponding path program 1 times [2024-10-14 13:12:39,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:39,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138397452] [2024-10-14 13:12:39,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:39,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:42,473 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:42,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138397452] [2024-10-14 13:12:42,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138397452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:42,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:42,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:12:42,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030009569] [2024-10-14 13:12:42,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:42,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:12:42,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:42,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:12:42,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:12:42,475 INFO L87 Difference]: Start difference. First operand 124 states and 173 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:43,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:43,704 INFO L93 Difference]: Finished difference Result 159 states and 212 transitions. [2024-10-14 13:12:43,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:12:43,704 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2024-10-14 13:12:43,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:43,705 INFO L225 Difference]: With dead ends: 159 [2024-10-14 13:12:43,705 INFO L226 Difference]: Without dead ends: 157 [2024-10-14 13:12:43,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-14 13:12:43,706 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 75 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:43,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 363 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:12:43,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-10-14 13:12:43,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 125. [2024-10-14 13:12:43,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 84 states have (on average 1.2261904761904763) internal successors, (103), 85 states have internal predecessors, (103), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 13:12:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2024-10-14 13:12:43,722 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 107 [2024-10-14 13:12:43,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:43,722 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2024-10-14 13:12:43,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:43,722 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2024-10-14 13:12:43,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-14 13:12:43,723 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:43,723 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:43,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 13:12:43,723 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:43,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:43,723 INFO L85 PathProgramCache]: Analyzing trace with hash 2097439940, now seen corresponding path program 1 times [2024-10-14 13:12:43,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:43,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761875034] [2024-10-14 13:12:43,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:43,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:47,336 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:12:47,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:47,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761875034] [2024-10-14 13:12:47,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761875034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:12:47,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:12:47,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:12:47,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328115185] [2024-10-14 13:12:47,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:12:47,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:12:47,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:12:47,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:12:47,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:12:47,338 INFO L87 Difference]: Start difference. First operand 125 states and 175 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:48,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:12:48,641 INFO L93 Difference]: Finished difference Result 157 states and 210 transitions. [2024-10-14 13:12:48,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:12:48,642 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 107 [2024-10-14 13:12:48,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:12:48,643 INFO L225 Difference]: With dead ends: 157 [2024-10-14 13:12:48,643 INFO L226 Difference]: Without dead ends: 155 [2024-10-14 13:12:48,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-10-14 13:12:48,644 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 73 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:12:48,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 318 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:12:48,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-10-14 13:12:48,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 122. [2024-10-14 13:12:48,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 81 states have (on average 1.2222222222222223) internal successors, (99), 82 states have internal predecessors, (99), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 13:12:48,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 171 transitions. [2024-10-14 13:12:48,676 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 171 transitions. Word has length 107 [2024-10-14 13:12:48,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:12:48,677 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 171 transitions. [2024-10-14 13:12:48,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:12:48,677 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 171 transitions. [2024-10-14 13:12:48,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-14 13:12:48,678 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:12:48,678 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:12:48,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 13:12:48,678 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:12:48,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:12:48,679 INFO L85 PathProgramCache]: Analyzing trace with hash -785384965, now seen corresponding path program 1 times [2024-10-14 13:12:48,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:12:48,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859327896] [2024-10-14 13:12:48,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:48,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:12:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:12:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 13:12:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 13:12:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 13:12:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 13:12:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 13:12:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 13:12:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 13:12:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 13:12:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 13:12:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 13:12:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:12:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:12:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 13:12:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 13:12:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 13:12:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 13:12:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 13:12:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 13:12:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 13:12:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 13:12:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 13:12:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-14 13:12:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 13:12:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 13:12:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 13:12:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-14 13:12:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 13:12:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-14 13:12:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 13:12:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-14 13:12:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 13:12:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-14 13:12:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-14 13:12:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2279 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-14 13:12:51,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:12:51,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859327896] [2024-10-14 13:12:51,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859327896] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:12:51,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276122958] [2024-10-14 13:12:51,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:12:51,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:12:51,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:12:51,228 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 13:12:51,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 13:12:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:12:51,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 13:12:51,323 INFO L278 TraceCheckSpWp]: Computing forward predicates...