./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_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 c02d96b2e66c5d16a70019b8ee62d80e443fba6c783a0dd61954285e06f10d7d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:42:50,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:42:50,521 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:42:50,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:42:50,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:42:50,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:42:50,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:42:50,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:42:50,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:42:50,558 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:42:50,558 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:42:50,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:42:50,559 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:42:50,559 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:42:50,559 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:42:50,560 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:42:50,560 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:42:50,560 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:42:50,560 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:42:50,560 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:42:50,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:42:50,563 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:42:50,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:42:50,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:42:50,563 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:42:50,563 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:42:50,564 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:42:50,564 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:42:50,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:42:50,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:42:50,565 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:42:50,565 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:42:50,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:42:50,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:42:50,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:42:50,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:42:50,566 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:42:50,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:42:50,567 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:42:50,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:42:50,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:42:50,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:42:50,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c02d96b2e66c5d16a70019b8ee62d80e443fba6c783a0dd61954285e06f10d7d [2024-10-24 08:42:50,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:42:50,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:42:50,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:42:50,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:42:50,854 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:42:50,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-27.i [2024-10-24 08:42:52,201 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:42:52,362 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:42:52,363 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-27.i [2024-10-24 08:42:52,373 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c0801786/327c7f3fde224f52a5bac3610c139c46/FLAGf96ea06b2 [2024-10-24 08:42:52,765 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c0801786/327c7f3fde224f52a5bac3610c139c46 [2024-10-24 08:42:52,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:42:52,768 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:42:52,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:42:52,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:42:52,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:42:52,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:42:52" (1/1) ... [2024-10-24 08:42:52,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413a3efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:52, skipping insertion in model container [2024-10-24 08:42:52,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:42:52" (1/1) ... [2024-10-24 08:42:52,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:42:52,943 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-27.i[917,930] [2024-10-24 08:42:52,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:42:52,995 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:42:53,005 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-27.i[917,930] [2024-10-24 08:42:53,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:42:53,033 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:42:53,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53 WrapperNode [2024-10-24 08:42:53,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:42:53,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:42:53,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:42:53,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:42:53,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,071 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2024-10-24 08:42:53,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:42:53,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:42:53,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:42:53,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:42:53,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,089 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,107 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]. [2024-10-24 08:42:53,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,109 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,111 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:42:53,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:42:53,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:42:53,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:42:53,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (1/1) ... [2024-10-24 08:42:53,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:42:53,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:42:53,156 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) [2024-10-24 08:42:53,158 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 [2024-10-24 08:42:53,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:42:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:42:53,201 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:42:53,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 08:42:53,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:42:53,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:42:53,255 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:42:53,257 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:42:53,466 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-24 08:42:53,467 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:42:53,504 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:42:53,504 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:42:53,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:42:53 BoogieIcfgContainer [2024-10-24 08:42:53,505 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:42:53,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:42:53,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:42:53,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:42:53,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:42:52" (1/3) ... [2024-10-24 08:42:53,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f088503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:42:53, skipping insertion in model container [2024-10-24 08:42:53,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:42:53" (2/3) ... [2024-10-24 08:42:53,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f088503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:42:53, skipping insertion in model container [2024-10-24 08:42:53,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:42:53" (3/3) ... [2024-10-24 08:42:53,511 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-27.i [2024-10-24 08:42:53,524 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:42:53,525 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:42:53,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:42:53,581 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;@203b3ed3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:42:53,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:42:53,590 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) [2024-10-24 08:42:53,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 08:42:53,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:42:53,607 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] [2024-10-24 08:42:53,608 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:42:53,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:42:53,612 INFO L85 PathProgramCache]: Analyzing trace with hash -424979931, now seen corresponding path program 1 times [2024-10-24 08:42:53,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:42:53,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114008185] [2024-10-24 08:42:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:42:53,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:42:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:42:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:42:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:42:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:42:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:42:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:42:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:42:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:42:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:42:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:42:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:42:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:42:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:42:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:42:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:42:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:42:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:42:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:53,898 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:42:53,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:42:53,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114008185] [2024-10-24 08:42:53,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114008185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:42:53,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:42:53,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:42:53,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471920909] [2024-10-24 08:42:53,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:42:53,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:42:53,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:42:53,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:42:53,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:42:53,924 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) [2024-10-24 08:42:53,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:42:53,968 INFO L93 Difference]: Finished difference Result 91 states and 159 transitions. [2024-10-24 08:42:53,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:42:53,971 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 [2024-10-24 08:42:53,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:42:53,977 INFO L225 Difference]: With dead ends: 91 [2024-10-24 08:42:53,978 INFO L226 Difference]: Without dead ends: 45 [2024-10-24 08:42:53,981 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 [2024-10-24 08:42:53,985 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 [2024-10-24 08:42:53,986 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] [2024-10-24 08:42:53,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-24 08:42:54,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-24 08:42:54,016 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) [2024-10-24 08:42:54,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 67 transitions. [2024-10-24 08:42:54,018 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 67 transitions. Word has length 105 [2024-10-24 08:42:54,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:42:54,019 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 67 transitions. [2024-10-24 08:42:54,019 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) [2024-10-24 08:42:54,019 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2024-10-24 08:42:54,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 08:42:54,023 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:42:54,023 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] [2024-10-24 08:42:54,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 08:42:54,024 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:42:54,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:42:54,024 INFO L85 PathProgramCache]: Analyzing trace with hash -170539677, now seen corresponding path program 1 times [2024-10-24 08:42:54,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:42:54,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693702407] [2024-10-24 08:42:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:42:54,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:42:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:42:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:42:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:42:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:42:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:42:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:42:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:42:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:42:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:42:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:42:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:42:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:42:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:42:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:42:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:42:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:42:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:42:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:42:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:42:58,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:42:58,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693702407] [2024-10-24 08:42:58,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693702407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:42:58,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:42:58,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 08:42:58,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579650590] [2024-10-24 08:42:58,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:42:58,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 08:42:58,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:42:58,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 08:42:58,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:42:58,624 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) [2024-10-24 08:42:59,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:42:59,674 INFO L93 Difference]: Finished difference Result 104 states and 138 transitions. [2024-10-24 08:42:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 08:42:59,678 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 [2024-10-24 08:42:59,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:42:59,680 INFO L225 Difference]: With dead ends: 104 [2024-10-24 08:42:59,680 INFO L226 Difference]: Without dead ends: 102 [2024-10-24 08:42:59,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-24 08:42:59,681 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 70 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2024-10-24 08:42:59,682 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] [2024-10-24 08:42:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-10-24 08:42:59,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 68. [2024-10-24 08:42:59,694 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) [2024-10-24 08:42:59,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 98 transitions. [2024-10-24 08:42:59,695 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 98 transitions. Word has length 105 [2024-10-24 08:42:59,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:42:59,696 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 98 transitions. [2024-10-24 08:42:59,696 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) [2024-10-24 08:42:59,696 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 98 transitions. [2024-10-24 08:42:59,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 08:42:59,697 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:42:59,700 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] [2024-10-24 08:42:59,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 08:42:59,700 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:42:59,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:42:59,701 INFO L85 PathProgramCache]: Analyzing trace with hash -227797979, now seen corresponding path program 1 times [2024-10-24 08:42:59,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:42:59,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350453511] [2024-10-24 08:42:59,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:42:59,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:42:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:01,596 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:01,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:01,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350453511] [2024-10-24 08:43:01,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350453511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:01,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:01,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 08:43:01,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634089335] [2024-10-24 08:43:01,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:01,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 08:43:01,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:01,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 08:43:01,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-24 08:43:01,602 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) [2024-10-24 08:43:02,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:02,011 INFO L93 Difference]: Finished difference Result 123 states and 162 transitions. [2024-10-24 08:43:02,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 08:43:02,011 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 [2024-10-24 08:43:02,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:02,015 INFO L225 Difference]: With dead ends: 123 [2024-10-24 08:43:02,015 INFO L226 Difference]: Without dead ends: 121 [2024-10-24 08:43:02,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-24 08:43:02,017 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, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:43:02,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 245 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:43:02,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-24 08:43:02,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 62. [2024-10-24 08:43:02,032 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) [2024-10-24 08:43:02,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 89 transitions. [2024-10-24 08:43:02,033 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 89 transitions. Word has length 105 [2024-10-24 08:43:02,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:02,034 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 89 transitions. [2024-10-24 08:43:02,036 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) [2024-10-24 08:43:02,036 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 89 transitions. [2024-10-24 08:43:02,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 08:43:02,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:02,038 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] [2024-10-24 08:43:02,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 08:43:02,038 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:02,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:02,038 INFO L85 PathProgramCache]: Analyzing trace with hash -563566687, now seen corresponding path program 1 times [2024-10-24 08:43:02,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:02,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930538294] [2024-10-24 08:43:02,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:02,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:03,490 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:03,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:03,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930538294] [2024-10-24 08:43:03,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930538294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:03,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:03,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 08:43:03,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807600568] [2024-10-24 08:43:03,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:03,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 08:43:03,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:03,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 08:43:03,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:43:03,492 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) [2024-10-24 08:43:03,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:03,720 INFO L93 Difference]: Finished difference Result 157 states and 217 transitions. [2024-10-24 08:43:03,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 08:43:03,721 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 [2024-10-24 08:43:03,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:03,722 INFO L225 Difference]: With dead ends: 157 [2024-10-24 08:43:03,722 INFO L226 Difference]: Without dead ends: 99 [2024-10-24 08:43:03,723 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 [2024-10-24 08:43:03,723 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 44 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2024-10-24 08:43:03,724 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] [2024-10-24 08:43:03,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-10-24 08:43:03,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 69. [2024-10-24 08:43:03,732 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) [2024-10-24 08:43:03,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2024-10-24 08:43:03,732 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 97 transitions. Word has length 105 [2024-10-24 08:43:03,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:03,733 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 97 transitions. [2024-10-24 08:43:03,733 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) [2024-10-24 08:43:03,733 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 97 transitions. [2024-10-24 08:43:03,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 08:43:03,734 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:03,734 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] [2024-10-24 08:43:03,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 08:43:03,734 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:03,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:03,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1001266956, now seen corresponding path program 1 times [2024-10-24 08:43:03,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:03,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936638482] [2024-10-24 08:43:03,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:03,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:07,880 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:07,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:07,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936638482] [2024-10-24 08:43:07,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936638482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:07,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:07,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 08:43:07,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738131111] [2024-10-24 08:43:07,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:07,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 08:43:07,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:07,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 08:43:07,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:43:07,882 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) [2024-10-24 08:43:08,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:08,475 INFO L93 Difference]: Finished difference Result 109 states and 143 transitions. [2024-10-24 08:43:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 08:43:08,476 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 [2024-10-24 08:43:08,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:08,478 INFO L225 Difference]: With dead ends: 109 [2024-10-24 08:43:08,478 INFO L226 Difference]: Without dead ends: 107 [2024-10-24 08:43:08,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-10-24 08:43:08,479 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 56 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:43:08,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 346 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:43:08,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-10-24 08:43:08,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 74. [2024-10-24 08:43:08,508 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) [2024-10-24 08:43:08,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2024-10-24 08:43:08,509 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 106 [2024-10-24 08:43:08,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:08,513 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2024-10-24 08:43:08,513 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) [2024-10-24 08:43:08,513 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2024-10-24 08:43:08,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 08:43:08,516 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:08,516 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] [2024-10-24 08:43:08,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 08:43:08,516 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:08,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:08,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1001207374, now seen corresponding path program 1 times [2024-10-24 08:43:08,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:08,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174067805] [2024-10-24 08:43:08,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:08,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:12,502 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:12,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:12,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174067805] [2024-10-24 08:43:12,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174067805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:12,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:12,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 08:43:12,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579632639] [2024-10-24 08:43:12,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:12,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 08:43:12,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:12,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 08:43:12,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:43:12,504 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) [2024-10-24 08:43:13,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:13,846 INFO L93 Difference]: Finished difference Result 107 states and 141 transitions. [2024-10-24 08:43:13,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 08:43:13,846 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 [2024-10-24 08:43:13,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:13,848 INFO L225 Difference]: With dead ends: 107 [2024-10-24 08:43:13,848 INFO L226 Difference]: Without dead ends: 105 [2024-10-24 08:43:13,849 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 [2024-10-24 08:43:13,855 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 54 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 08:43:13,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 279 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 08:43:13,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-10-24 08:43:13,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 74. [2024-10-24 08:43:13,864 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) [2024-10-24 08:43:13,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2024-10-24 08:43:13,865 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 106 [2024-10-24 08:43:13,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:13,865 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2024-10-24 08:43:13,865 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) [2024-10-24 08:43:13,865 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2024-10-24 08:43:13,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 08:43:13,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:13,866 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] [2024-10-24 08:43:13,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 08:43:13,866 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:13,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:13,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1518692978, now seen corresponding path program 1 times [2024-10-24 08:43:13,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:13,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551066901] [2024-10-24 08:43:13,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:13,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:20,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:20,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551066901] [2024-10-24 08:43:20,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551066901] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:20,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:20,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 08:43:20,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013744956] [2024-10-24 08:43:20,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:20,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 08:43:20,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:20,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 08:43:20,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:43:20,796 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) [2024-10-24 08:43:21,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:21,678 INFO L93 Difference]: Finished difference Result 117 states and 152 transitions. [2024-10-24 08:43:21,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 08:43:21,678 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 [2024-10-24 08:43:21,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:21,679 INFO L225 Difference]: With dead ends: 117 [2024-10-24 08:43:21,683 INFO L226 Difference]: Without dead ends: 115 [2024-10-24 08:43:21,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-10-24 08:43:21,684 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, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:43:21,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 327 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:43:21,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-10-24 08:43:21,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 77. [2024-10-24 08:43:21,703 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) [2024-10-24 08:43:21,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 110 transitions. [2024-10-24 08:43:21,707 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 110 transitions. Word has length 106 [2024-10-24 08:43:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:21,708 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 110 transitions. [2024-10-24 08:43:21,708 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) [2024-10-24 08:43:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 110 transitions. [2024-10-24 08:43:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 08:43:21,708 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:21,709 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] [2024-10-24 08:43:21,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 08:43:21,709 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:21,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:21,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1518752560, now seen corresponding path program 1 times [2024-10-24 08:43:21,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:21,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289839029] [2024-10-24 08:43:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:21,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:26,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:26,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289839029] [2024-10-24 08:43:26,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289839029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:26,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:26,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 08:43:26,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540454540] [2024-10-24 08:43:26,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:26,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 08:43:26,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:26,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 08:43:26,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:43:26,583 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) [2024-10-24 08:43:27,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:27,830 INFO L93 Difference]: Finished difference Result 114 states and 149 transitions. [2024-10-24 08:43:27,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 08:43:27,830 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 [2024-10-24 08:43:27,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:27,831 INFO L225 Difference]: With dead ends: 114 [2024-10-24 08:43:27,832 INFO L226 Difference]: Without dead ends: 112 [2024-10-24 08:43:27,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-10-24 08:43:27,832 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 64 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 08:43:27,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 259 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 08:43:27,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-24 08:43:27,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 74. [2024-10-24 08:43:27,859 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) [2024-10-24 08:43:27,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2024-10-24 08:43:27,860 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 106 [2024-10-24 08:43:27,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:27,860 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2024-10-24 08:43:27,860 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) [2024-10-24 08:43:27,860 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2024-10-24 08:43:27,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 08:43:27,861 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:27,861 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] [2024-10-24 08:43:27,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 08:43:27,861 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:27,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:27,861 INFO L85 PathProgramCache]: Analyzing trace with hash 285707021, now seen corresponding path program 1 times [2024-10-24 08:43:27,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:27,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988908088] [2024-10-24 08:43:27,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:27,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:27,938 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:27,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:27,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988908088] [2024-10-24 08:43:27,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988908088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:27,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:27,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:43:27,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931001404] [2024-10-24 08:43:27,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:27,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 08:43:27,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:27,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 08:43:27,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 08:43:27,941 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) [2024-10-24 08:43:27,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:27,977 INFO L93 Difference]: Finished difference Result 199 states and 282 transitions. [2024-10-24 08:43:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 08:43:27,978 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 [2024-10-24 08:43:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:27,979 INFO L225 Difference]: With dead ends: 199 [2024-10-24 08:43:27,979 INFO L226 Difference]: Without dead ends: 129 [2024-10-24 08:43:27,980 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 [2024-10-24 08:43:27,982 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 [2024-10-24 08:43:27,982 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] [2024-10-24 08:43:27,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-10-24 08:43:28,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2024-10-24 08:43:28,006 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) [2024-10-24 08:43:28,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 180 transitions. [2024-10-24 08:43:28,009 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 180 transitions. Word has length 106 [2024-10-24 08:43:28,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:28,010 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 180 transitions. [2024-10-24 08:43:28,010 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) [2024-10-24 08:43:28,010 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 180 transitions. [2024-10-24 08:43:28,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 08:43:28,012 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:28,012 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] [2024-10-24 08:43:28,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 08:43:28,012 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:28,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:28,012 INFO L85 PathProgramCache]: Analyzing trace with hash 228448719, now seen corresponding path program 1 times [2024-10-24 08:43:28,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:28,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821801351] [2024-10-24 08:43:28,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:28,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:29,798 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:29,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:29,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821801351] [2024-10-24 08:43:29,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821801351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:29,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:29,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 08:43:29,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587955196] [2024-10-24 08:43:29,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:29,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 08:43:29,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:29,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 08:43:29,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-24 08:43:29,800 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) [2024-10-24 08:43:30,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:30,384 INFO L93 Difference]: Finished difference Result 329 states and 457 transitions. [2024-10-24 08:43:30,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 08:43:30,386 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 [2024-10-24 08:43:30,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:30,390 INFO L225 Difference]: With dead ends: 329 [2024-10-24 08:43:30,392 INFO L226 Difference]: Without dead ends: 206 [2024-10-24 08:43:30,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2024-10-24 08:43:30,394 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 [2024-10-24 08:43:30,395 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] [2024-10-24 08:43:30,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-10-24 08:43:30,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 174. [2024-10-24 08:43:30,423 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) [2024-10-24 08:43:30,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 245 transitions. [2024-10-24 08:43:30,424 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 245 transitions. Word has length 106 [2024-10-24 08:43:30,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:30,424 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 245 transitions. [2024-10-24 08:43:30,425 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) [2024-10-24 08:43:30,425 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 245 transitions. [2024-10-24 08:43:30,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 08:43:30,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:30,426 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] [2024-10-24 08:43:30,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 08:43:30,426 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:30,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:30,426 INFO L85 PathProgramCache]: Analyzing trace with hash -422579576, now seen corresponding path program 1 times [2024-10-24 08:43:30,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:30,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128510620] [2024-10-24 08:43:30,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:30,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:34,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:34,575 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:34,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:34,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128510620] [2024-10-24 08:43:34,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128510620] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:34,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:34,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 08:43:34,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573912281] [2024-10-24 08:43:34,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:34,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 08:43:34,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:34,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 08:43:34,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:43:34,577 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) [2024-10-24 08:43:35,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:35,767 INFO L93 Difference]: Finished difference Result 281 states and 387 transitions. [2024-10-24 08:43:35,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 08:43:35,767 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 [2024-10-24 08:43:35,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:35,769 INFO L225 Difference]: With dead ends: 281 [2024-10-24 08:43:35,769 INFO L226 Difference]: Without dead ends: 159 [2024-10-24 08:43:35,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-24 08:43:35,770 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 91 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 08:43:35,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 356 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 08:43:35,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-24 08:43:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 125. [2024-10-24 08:43:35,787 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) [2024-10-24 08:43:35,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2024-10-24 08:43:35,788 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 107 [2024-10-24 08:43:35,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:35,791 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2024-10-24 08:43:35,791 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) [2024-10-24 08:43:35,791 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2024-10-24 08:43:35,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 08:43:35,792 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:35,792 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] [2024-10-24 08:43:35,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 08:43:35,792 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:35,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:35,793 INFO L85 PathProgramCache]: Analyzing trace with hash -422519994, now seen corresponding path program 1 times [2024-10-24 08:43:35,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:35,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308138882] [2024-10-24 08:43:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:35,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:40,629 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:40,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:40,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308138882] [2024-10-24 08:43:40,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308138882] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:40,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:40,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 08:43:40,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507584699] [2024-10-24 08:43:40,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:40,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 08:43:40,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:40,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 08:43:40,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:43:40,631 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) [2024-10-24 08:43:43,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:43,229 INFO L93 Difference]: Finished difference Result 186 states and 241 transitions. [2024-10-24 08:43:43,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 08:43:43,230 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 [2024-10-24 08:43:43,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:43,232 INFO L225 Difference]: With dead ends: 186 [2024-10-24 08:43:43,232 INFO L226 Difference]: Without dead ends: 184 [2024-10-24 08:43:43,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-24 08:43:43,233 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 83 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:43:43,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 322 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 08:43:43,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-24 08:43:43,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 124. [2024-10-24 08:43:43,251 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) [2024-10-24 08:43:43,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 173 transitions. [2024-10-24 08:43:43,252 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 173 transitions. Word has length 107 [2024-10-24 08:43:43,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:43,253 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 173 transitions. [2024-10-24 08:43:43,253 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) [2024-10-24 08:43:43,253 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 173 transitions. [2024-10-24 08:43:43,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 08:43:43,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:43,255 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] [2024-10-24 08:43:43,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 08:43:43,255 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:43,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:43,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2097380358, now seen corresponding path program 1 times [2024-10-24 08:43:43,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:43,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659864716] [2024-10-24 08:43:43,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:43,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:46,969 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:46,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:46,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659864716] [2024-10-24 08:43:46,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659864716] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:46,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:46,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 08:43:46,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997432748] [2024-10-24 08:43:46,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:46,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 08:43:46,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:46,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 08:43:46,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:43:46,972 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) [2024-10-24 08:43:47,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:47,813 INFO L93 Difference]: Finished difference Result 159 states and 212 transitions. [2024-10-24 08:43:47,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 08:43:47,813 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 [2024-10-24 08:43:47,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:47,814 INFO L225 Difference]: With dead ends: 159 [2024-10-24 08:43:47,814 INFO L226 Difference]: Without dead ends: 157 [2024-10-24 08:43:47,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-24 08:43:47,815 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 [2024-10-24 08:43:47,815 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] [2024-10-24 08:43:47,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-10-24 08:43:47,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 125. [2024-10-24 08:43:47,828 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) [2024-10-24 08:43:47,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2024-10-24 08:43:47,829 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 107 [2024-10-24 08:43:47,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:47,829 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2024-10-24 08:43:47,830 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) [2024-10-24 08:43:47,830 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2024-10-24 08:43:47,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 08:43:47,830 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:47,830 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] [2024-10-24 08:43:47,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 08:43:47,831 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:47,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:47,831 INFO L85 PathProgramCache]: Analyzing trace with hash 2097439940, now seen corresponding path program 1 times [2024-10-24 08:43:47,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:47,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908791900] [2024-10-24 08:43:47,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:47,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:50,634 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-24 08:43:50,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:50,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908791900] [2024-10-24 08:43:50,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908791900] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:43:50,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:43:50,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 08:43:50,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082638095] [2024-10-24 08:43:50,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:43:50,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 08:43:50,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:43:50,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 08:43:50,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:43:50,636 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) [2024-10-24 08:43:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:43:52,227 INFO L93 Difference]: Finished difference Result 157 states and 210 transitions. [2024-10-24 08:43:52,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 08:43:52,228 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 [2024-10-24 08:43:52,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:43:52,229 INFO L225 Difference]: With dead ends: 157 [2024-10-24 08:43:52,231 INFO L226 Difference]: Without dead ends: 155 [2024-10-24 08:43:52,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-10-24 08:43:52,232 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 73 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 08:43:52,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 318 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 08:43:52,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-10-24 08:43:52,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 122. [2024-10-24 08:43:52,246 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) [2024-10-24 08:43:52,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 171 transitions. [2024-10-24 08:43:52,247 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 171 transitions. Word has length 107 [2024-10-24 08:43:52,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:43:52,247 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 171 transitions. [2024-10-24 08:43:52,247 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) [2024-10-24 08:43:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 171 transitions. [2024-10-24 08:43:52,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-24 08:43:52,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:43:52,249 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] [2024-10-24 08:43:52,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 08:43:52,249 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:43:52,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:43:52,250 INFO L85 PathProgramCache]: Analyzing trace with hash -785384965, now seen corresponding path program 1 times [2024-10-24 08:43:52,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:43:52,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736925850] [2024-10-24 08:43:52,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:52,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:43:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:43:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:43:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:43:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:43:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:43:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:43:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:43:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:43:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:43:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:43:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:43:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:43:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:43:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:43:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:43:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:43:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:43:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:43:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:43:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:43:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:43:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 08:43:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 08:43:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 08:43:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 08:43:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 08:43:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-24 08:43:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 08:43:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-24 08:43:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-24 08:43:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-24 08:43:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-24 08:43:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-24 08:43:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-24 08:43:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2279 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 08:43:55,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:43:55,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736925850] [2024-10-24 08:43:55,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736925850] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 08:43:55,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134973023] [2024-10-24 08:43:55,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:43:55,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:43:55,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:43:55,229 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) [2024-10-24 08:43:55,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 08:43:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:43:55,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-24 08:43:55,361 INFO L278 TraceCheckSpWp]: Computing forward predicates...