./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-71.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-71.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 d4307cdea03121abd6b33299d493d0c8e8ec5dc2377a00797e547372a86173d4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:05:05,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:05:05,254 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:05:05,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:05:05,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:05:05,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:05:05,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:05:05,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:05:05,288 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:05:05,288 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:05:05,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:05:05,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:05:05,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:05:05,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:05:05,290 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:05:05,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:05:05,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:05:05,291 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:05:05,291 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:05:05,292 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:05:05,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:05:05,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:05:05,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:05:05,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:05:05,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:05:05,294 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:05:05,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:05:05,295 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:05:05,295 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:05:05,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:05:05,296 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:05:05,296 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:05:05,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:05:05,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:05:05,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:05:05,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:05:05,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:05:05,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:05:05,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:05:05,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:05:05,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:05:05,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:05:05,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4307cdea03121abd6b33299d493d0c8e8ec5dc2377a00797e547372a86173d4 [2024-11-16 18:05:05,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:05:05,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:05:05,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:05:05,592 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:05:05,593 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:05:05,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-71.i [2024-11-16 18:05:07,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:05:07,372 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:05:07,373 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-71.i [2024-11-16 18:05:07,383 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cb46a8d1/706777682f834ca78dc62bce07afd56d/FLAG1e8c3e53f [2024-11-16 18:05:07,731 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cb46a8d1/706777682f834ca78dc62bce07afd56d [2024-11-16 18:05:07,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:05:07,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:05:07,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:05:07,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:05:07,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:05:07,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:05:07" (1/1) ... [2024-11-16 18:05:07,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67c72aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:07, skipping insertion in model container [2024-11-16 18:05:07,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:05:07" (1/1) ... [2024-11-16 18:05:07,775 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:05:07,969 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-71.i[913,926] [2024-11-16 18:05:08,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:05:08,053 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:05:08,063 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-71.i[913,926] [2024-11-16 18:05:08,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:05:08,103 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:05:08,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08 WrapperNode [2024-11-16 18:05:08,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:05:08,104 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:05:08,104 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:05:08,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:05:08,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,157 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2024-11-16 18:05:08,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:05:08,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:05:08,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:05:08,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:05:08,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,176 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,203 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 18:05:08,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,204 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,214 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:05:08,225 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:05:08,225 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:05:08,225 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:05:08,226 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (1/1) ... [2024-11-16 18:05:08,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:05:08,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:05:08,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 18:05:08,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 18:05:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:05:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:05:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:05:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:05:08,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:05:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:05:08,397 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:05:08,399 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:05:08,773 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-16 18:05:08,776 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:05:08,794 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:05:08,794 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:05:08,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:05:08 BoogieIcfgContainer [2024-11-16 18:05:08,795 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:05:08,799 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:05:08,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:05:08,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:05:08,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:05:07" (1/3) ... [2024-11-16 18:05:08,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cf9952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:05:08, skipping insertion in model container [2024-11-16 18:05:08,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:05:08" (2/3) ... [2024-11-16 18:05:08,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cf9952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:05:08, skipping insertion in model container [2024-11-16 18:05:08,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:05:08" (3/3) ... [2024-11-16 18:05:08,808 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-71.i [2024-11-16 18:05:08,825 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:05:08,825 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:05:08,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:05:08,892 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;@24e49aff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:05:08,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:05:08,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 36 states have internal predecessors, (46), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-16 18:05:08,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:05:08,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:05:08,910 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:05:08,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:05:08,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:05:08,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1679910479, now seen corresponding path program 1 times [2024-11-16 18:05:08,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:05:08,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838844979] [2024-11-16 18:05:08,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:05:08,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:05:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:05:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:05:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:05:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:05:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:05:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:05:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:05:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 18:05:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:05:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 18:05:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:05:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:05:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:05:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 18:05:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:05:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 18:05:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:05:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:05:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 18:05:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:05:09,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:05:09,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838844979] [2024-11-16 18:05:09,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838844979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:05:09,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:05:09,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:05:09,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184196975] [2024-11-16 18:05:09,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:05:09,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:05:09,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:05:09,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:05:09,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:05:09,422 INFO L87 Difference]: Start difference. First operand has 57 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 36 states have internal predecessors, (46), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:05:09,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:05:09,447 INFO L93 Difference]: Finished difference Result 106 states and 180 transitions. [2024-11-16 18:05:09,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:05:09,449 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 119 [2024-11-16 18:05:09,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:05:09,456 INFO L225 Difference]: With dead ends: 106 [2024-11-16 18:05:09,457 INFO L226 Difference]: Without dead ends: 52 [2024-11-16 18:05:09,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:05:09,464 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:05:09,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:05:09,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-16 18:05:09,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-16 18:05:09,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-16 18:05:09,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 76 transitions. [2024-11-16 18:05:09,508 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 76 transitions. Word has length 119 [2024-11-16 18:05:09,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:05:09,509 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 76 transitions. [2024-11-16 18:05:09,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 18:05:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 76 transitions. [2024-11-16 18:05:09,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:05:09,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:05:09,514 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:05:09,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:05:09,515 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:05:09,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:05:09,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1315130830, now seen corresponding path program 1 times [2024-11-16 18:05:09,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:05:09,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220426844] [2024-11-16 18:05:09,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:05:09,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:05:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:05:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 18:05:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 18:05:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 18:05:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 18:05:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:05:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 18:05:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 18:05:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 18:05:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 18:05:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 18:05:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:05:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:05:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 18:05:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 18:05:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 18:05:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 18:05:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 18:05:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-16 18:05:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:05:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:05:12,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:05:12,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220426844] [2024-11-16 18:05:12,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220426844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:05:12,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:05:12,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:05:12,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839589338] [2024-11-16 18:05:12,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:05:12,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:05:12,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:05:12,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:05:12,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:05:12,402 INFO L87 Difference]: Start difference. First operand 52 states and 76 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:05:12,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:05:12,952 INFO L93 Difference]: Finished difference Result 89 states and 118 transitions. [2024-11-16 18:05:12,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:05:12,953 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 119 [2024-11-16 18:05:12,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:05:12,955 INFO L225 Difference]: With dead ends: 89 [2024-11-16 18:05:12,955 INFO L226 Difference]: Without dead ends: 86 [2024-11-16 18:05:12,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:05:12,957 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 48 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:05:12,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 290 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:05:12,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-16 18:05:12,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 58. [2024-11-16 18:05:12,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 37 states have internal predecessors, (46), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-16 18:05:12,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2024-11-16 18:05:12,977 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 119 [2024-11-16 18:05:12,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:05:12,979 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2024-11-16 18:05:12,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-16 18:05:12,979 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2024-11-16 18:05:12,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:05:12,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:05:12,981 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:05:12,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:05:12,982 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:05:12,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:05:12,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1237026131, now seen corresponding path program 1 times [2024-11-16 18:05:12,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:05:12,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484693395] [2024-11-16 18:05:12,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:05:12,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:05:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat